How do you import an Eclipse project into Android Studio now

Question

Using  Import Project  in Android Studio for an Eclipse project used to change the project structure and generate Gradle files  but right now  I m using AS 0 5 3  it s only generating IDEA files   iml   idea  but not Gradle and it s not touching the file structure either   How do you import an Eclipse project into Android Studio now   Update  Trying to export gradle files in Eclipse won t export them for the app  it doesn t show up as a module in Android Studio either

User · Answer

Here is a simpler way to migrate   Start off with a sample Android Studio project  Open android studio and create a new project  or  just download a    sample    studio project here  https   github com AppLozic eclipse-to-android-studio-migration  Now  open the downloaded project in Android Studio by following the below instructions   Import eclipse project modules into Android Studio  Select File -  New -  Import Module Image title  Next  select the path of the eclipse project and import the modules  In case  if you see the message    Failed to sync Gradle project     then click on    Install Build Tools and sync project        Now  remove the sample project modules by following the below simple steps   Open settings gradle and remove    include     app       Right click on    app    module and    Delete    it  Now  what we have is the Eclipse project open in Android studio with the Gradle build   Here are few other links which might help you   http   developer android com sdk installing migrate html Source  http   www applozic com blog migrating-project-from-eclipse-to-studio

User · Answer

The best way to bring in an Eclipse ADT project is to import it directly into Android Studio  At first GO to Eclipse project  amp  delete the project properties file    After that  open the Android studio Tool  amp  import Eclipse project Eclipse ADT  Gradle etc

User · Answer

Stop installing android studio 3 0 1 and go back 2 3 3   Stable version    Check for the stable version and you can find them a lot  All you have to do uninstall and go back to the other version  Yes it asks to create gradle file seperately which is completely new to me   Failure is the stepping stone for success

User · Answer

In newer versions of Android Studio  the best way to bring in an Eclipse ADT  Android Development Tool  project is to import it directly into Android Studio  we used to recommend you export it from Eclipse to Gradle first  but we haven t been updating ADT often enough to keep pace with Android Studio   In any event  if you choose  Import Project  from the File menu or from the Welcome screen when you launch Android Studio  it should take you through a specialized wizard that will prompt you that it intends to copy the files into a new directory structure instead of importing them in-place  and it will offer to fix up some common things like converting dependencies into Maven-style includes and such   It doesn t seem like you re getting this specialized flow  I think it may not be recognizing your imported project as an ADT project  and it s defaulting to the old built-into-IntelliJ behavior which doesn t know about Gradle  To get the specialized import working  the following must be true    The root directory of the project you import must have an AndroidManifest xml file  Either    The root directory must contain the  project and  classpath files from Eclipse  or   The root directory must contain res and src directories     If your project is complex  perhaps you re not pointing it as the root directory it wants to see for the import to succeed

User · Answer

Android Studio has been improved since this question was posted  and the latest versions of Android Studio  as of this writing  we are at 2 1 1  have fairly good Eclipse importing capabilities  so importing Eclipse projects directly into Android Studio is now the best approach for migrating projects from Eclipse into Android Studio     I will describe how to do this below  including a few of the pitfalls that one might encounter   I will deal in particular with importing an Eclipse workspace that contains multiple apps sharing one or more project libraries  the approaches posted thus far seem limited to importing just one Eclipse app project and its project libraries    While I don t deal with every possible issue  I do go into a lot of detail regarding some of them  which I hope will be helpful to those going through this process for the first time themselves   I recently imported the projects from an Eclipse workspace   This workspace included four library projects that were shared between up to nine projects each   Some background   An Eclipse workspace contains multiple projects  which may be library projects or apps   An Android Studio project is analogous to an Eclipse workspace  in that it can contain both library projects and apps   However  a library project or an app is represented by a  module  in Android Studio  whereas it is represented by a  project  in Eclipse   So  to summarize  Eclipse workspaces will end up as Android Studio projects  and Eclipse projects inside a workspace will end up as Android Studio modules inside a project   You should start the import process by creating an Android Studio project  File   New   New Project    You might give this project the same  or similar  name as you gave your Eclipse workspace   This project will eventually hold all of your modules  one each for each Eclipse project  including project libraries  that you will import   The import process does not change your original Eclipse files  so long as you place the imported files in a different folder hierarchy  so you should choose a folder for this project that is not in your original Eclipse hierarchy   For example  if your Eclipse projects are all in a folder called Android  you might create a sibling folder called AStudio     Your Android Studio project can then be created as a sub-folder of this new folder   The New Project wizard will prompt you to enter this top-level project folder  into which it will create your project   Android Studio s new project wizard will then ask you to configure a single module at the time you create the project   This can be a little confusing at first  because they never actually tell you that you are creating a module  but you are  you are creating a project with a single module in it   Apparently  every project is required to have at least one module  so  since you are relying on Eclipse to provide your modules  your initial module will be a placeholder to vacuously satisfy that formal requirement   Thus  you probably will want to create an initial module for your project that does as little as possible   Therefore  select Phone and Tablet as the type of your module  accept the default minimum SDK  API level 8   and select Add No Activity for your module   Next  select one of the Eclipse app projects in your workspace that requires the largest number of libraries as your first project to import   The advantage of doing this is that when you import that project  all the library projects that it uses  directly  or indirectly  if some of your library projects themselves require other library projects  will get imported along with it as part of the importing process     Each of these imported projects will get its own module within your Android Studio project   All of these modules will be siblings of one another  both in your project hierarchy  and in the folder hierarchy where their files are placed   just as if you had imported the modules separately   However  the dependencies between the modules will be created for you  in your app s build gradle files  as part of the importing process   Note that after you finish importing  testing and debugging this  most dependent  Eclipse project and its supporting library projects  you will go on to import a second Eclipse app project  if you have a second one in your workspace  and its library project modules  with those imported earlier getting found by the import wizard as existing modules and re-used for this new module  rather than being duplicated      So  you should never have to import even a single library project from Eclipse directly  they will all be brought in indirectly  based on their dependencies upon app projects that you import   This is assuming that all of your library projects in the workspace are created to serve the needs of one or more app projects in that same workspace   To perform the import of this first app project  back in Android Studio  while you are in the project that you just created  select File   New   New Module   You might think that you should be using File   New   Import Module  but no  you should not  because if you do that  Android Studio will create a new project to hold your imported module  and it will import your module to that project   You actually could create your first module that way  but then the second through Nth modules would still require that you use this other method  for importing a module into an existing project   and so I think that just starting with an  empty  project  or rather  one with its own vacuous  do-nothing placeholder module   and then importing each of your Eclipse projects as a new module into that project  i e   the approach we are taking here   may be less confusing   So  you are going to take your practically-empty new project  and perform a File   New   New Module in it   The wizard that this invokes will give you a choice of what kind of module you want to create   You must select  Import Eclipse ADT Project    That is what accesses the wizard that knows how to convert an Eclipse project into an Android Studio module  along with the library modules on which it depends  within your current Android Studio project   When prompted for a source folder  you should enter the folder for your Eclipse project  this is the folder that contains that project s AndroidManifest xml file    The import wizard will then display the module name that it intends to create  similar to your original Eclipse project s name  but with a lower-case first letter because that is a convention that distinguishes module names from project names  which start with an upper-case letter    It usually works pretty well to accept this default   Below the module name is a section titled  Additional required modules    This will list every library required by the module you are importing  or by any of its libraries  etc     Since this is the first module you are importing  none of these will already be in your project  so each of them will have its Import box checked by default   You should leave these checked because you need these modules    Note that when you import later Eclipse app projects  if a library that they need has already been imported  those libraries will still appear here  but there will be a note that  Project already contains module with this name   and the Import box will be un-checked by default   In that case  you should leave the box unchecked  so that the importer will hook up your newly-imported module s  to the libraries that have already been imported   It may be that accepting the default names that Android Studio creates for your modules will be important for allowing the IDE to find and re-use these library modules   Next  the importer will offer to replace any jars and library sources with Gradle dependencies  and to create camelCase module names for any dependent modules  checking all those options by default   You should generally leave these options checked and continue   Read the warning  though  about possible problems   Remember that you can always delete an imported module or modules  via the Project Structure dialog  and start the import process over again   The next display that I got  YMMV  claims that the Android Support Repository is not installed in my SDK installation   It provides a button to open the Android SDK Manager for purposes of installing it   However  that button did not work for me   I manually opened the SDK manager as a separate app  and found that the Android Support Repository was already installed   There was an update  however   I installed that  and tapped the Refresh button in the import dialog  but that did nothing   So  I proceeded  and the perceived lack of this Repository did not seem to hurt the importing process  although I did get messages regarding it being missing from time to time later on  while working with the imported code  which I was able to appease by clicking a supplied link that corrected the problem - at least temporarily    Eventually this problem went away when I installed an update to the repository  so you may not experience it at all   At this point  you will click Finish  and after a bit it should create your modules and build them   If all goes well  you should get a BUILD SUCCESSFUL message in your Gradle Console   One quirk is that if the build fails  you may not see your imported modules in the Project hierarchy   It seems that you need to get to the first valid build before the new modules will appear there  my experience  anyway    You may still be able to see the new modules in the File   Project Structure dialog  e g   if you want to delete them and start your import over    Remember that since you are not changing your original Eclipse projects  you can always delete the modules that you have just imported  if importing goes badly   and start all over again   You can even make changes to the Eclipse side after deleting your Android Studio modules  if that will make importing go better the second time  so long as you preserve your fallback ability to build your existing source under Eclipse    As you ll see when we discuss version control below  it may be necessary for you to retain your ability to build under Eclipse  because the project structure is changed under Android Studio  so if you need to go back to a commit that precedes your move to Android Studio  e g   to make a bug fix   you will want to have the ability to build that earlier commit in Eclipse   To delete a module  you must select File   Project Structure  then select the module from the left side of the dialog  and then hit the delete key   For some reason  I was not able to delete a module directly in the Project hierarchy  it had to be done using this Project Structure dialog   The import wizard generates an import-summary txt file containing a detailed list of any issues it may have encountered  along with actions taken to resolve them   You should read it carefully  as it may provide clues as to what is happening if you have trouble building or running the imported code   It will also help you to find things that the importer moves around to accommodate the different structure of Android Studio projects   If all does not go well  then have at look at these possible problems that you may encounter  along with solutions for those problems   Generally speaking  there are two main kinds of problems that I encountered    Proguard problems Manifest problems   When Proguard is messed up  the  obfuscated  names of methods in your libraries may not match the names being used to invoke them from your app  and you will get compiler errors like  error  cannot find symbol class       In Eclipse  Proguard stuff is pretty much ignored for library projects  with the Proguard stuff for any app project that you are building determining the obfuscation  etc  for not just itself  but for processing all of the libraries on which it depends   And that is generally what you want   In Android Studio  however  you need to make some changes to attain this same effect   Basically  in the build gradle files for each of your library project modules  you will want something like this   buildTypes       release           minifyEnabled false         consumerProguardFiles  proguard cfg            Where proguard cfg is your library module s own proguard configuration file   The term  consumer  in  consumerProguardFiles  apparently refers to the app module that is using this library module   So the proguard commands from that app are used in preference to those of the library module itself  and apparently this results in obfuscations that are coordinated and compatible  so that all calls from the app module to its library modules are made with matching symbols   These  consumerProguardFiles  entries are not created automatically during the import process  at least that was my own experience  so you will want to make sure to edit that into your library modules  build gradle files if they are not created for you during importing   If you wanted to distribute your library projects separately  with obfuscation  then you would need an individual proguard file for them  I have not done this myself  and so that is beyond the scope of this answer   In the app module  you will want something like this   buildTypes       release           minifyEnabled true         proguardFiles  proguard cfg             BTW  as of this writing  while my apps are running just fine  I have not yet directly confirmed that things are actually getting obfuscated using this approach  so do check this yourself - e g   by using a decompiler like apktool   I will be checking this later on  and will edit this answer when I get that info    The second kind of problem is due to the fact that Eclipse pretty much ignores the manifest files for library projects when compiling an app project that uses those library projects  while in Android Studio  there is an interleaving of the two that apparently does not consistently prioritize the app s manifest over those of its libraries   I encountered this because I had a library manifest that listed  just for documentation purposes  an abstract Activity class as the main activity   There was a class derived from this abstract class in my app that was declared in the manifest of each app that used the library   In Eclipse  this never caused any problems  because the library manifests were ignored   But in Android Studio  I ended up with that abstract class as my activity class for the app  which caused a run-time error when the code made an attempt to instantiate that abstract class   You have two choices in this case    Use tools syntax to override specific library manifest stuff in your app manifest - for example      lt manifest xmlns android  http   schemas android com apk res android         package  com goalstate WordGames FullBoard trialsuite         xmlns tools  http   schemas android com tools                             lt application            tools replace  android name     or    Strip out practically everything from your library modules  manifests  and rely upon the app module s manifest to provide every value   Note that you do need to have a manifest for each library module  but not much more is required than the header and a bare manifest element with just a package attribute in it    I tried both and ended up with approach 2   above  as the simpler method   However  if you wanted to distribute your library modules separately  you would need to create a more meaningful manifest file that reflects each library module s own individual requirements   There is probably a more  correct  way to do this which puts requirements  e g   permissions  for each library in the library manifest itself  and allows the automatic interleaving process to combine these with those declared for the app   However  given that Eclipse ignores the manifests for libraries  it seems safer at least initially to rely entirely on the app manifests and just strip the library manifests down to the bare bones   Be aware that some of the project properties  and also the manifest attributes  from your Eclipse project will have been used to construct portions of your build gradle files   Specifically  your compileSdkVersion in build gradle is set to the project build version from the Eclipse project properties  applicationId is the package name from your app s manifest  and minSdkVersion and targetSdkVersion are also copied from the app s manifest file   The dependencies section of build gradle comes from the library project dependencies in your project s properties   Note that this may make some of your AndroidManifest xml values redundant and quite possibly residual  i e   unused    This could create confusion   My understanding is that the build gradle values are the ones that actually have an effect  and that the manifest values like targetSdkVersion are not used any more for purposes of building   However  they may still be used by app stores such as Google Play  I don t know for certain one way or the other  so at this point I am just maintaining them in tandem   Besides the above two kinds of issue  there are more routine things like importing a project that has a project build level of 22 when you have only installed SDK level 23 in Android Studio   In that situation  it is probably better to edit your app module s build gradle file to move compileSdkVersion from 22  the imported value  to 23  than it would be to install the SDK for level 22  but either approach should work   Throughout this entire process  when something does not build properly and you make a change to try to address it  you might want to try Build   Rebuild Project and or Tools   Android   Sync Project with Gradle Files  and or File   Invalidate Caches Restart  to make sure that your changes have been fully incorporated   I don t know exactly when these are truly necessary  because I don t know how much is done incrementally when you haven t yet had a successful build  but I performed them all fairly regularly as a kind of superstitious ritual  and I m fairly certain that it helped   For example  when I got a Resources NotFound runtime error that appeared to be from an inability to find the launch icon resource  I tried all three  and the problem was fixed   When you have performed the above for your first Eclipse project and have attained a successful build  then with luck  you can select your app module from the dropdown at the top of the Android Studio display to the left of the play button  then click the play button itself  then select a device or Android Virtual Device  and the app should be loaded for running   Likewise  you should be able to create a signed copy of your app using the Build   Generate Signed APK feature   Note that some import-related errors may appear when running your signed copy that do not appear when using the play button  so you need to confirm that both are working before deciding that your import is complete   Following this  you will probably want to turn on version control   I am using git myself  but there are a number of other options available     Version control is mostly beyond the scope of this answer  but there are a few things that are affected by the importing process   First  in Eclipse you might have your various projects in various folders stuck all over the place  but when you import into Android Studio  all modules will be created as direct child folders of your main project folder   So if you had a separate git folder for each project in Eclipse  or for related groups of projects organized under a parent folder for each group  as I did   that is not going to translate very well to Android Studio     My knowledge of this is limited as I have not worked with version control yet in Android Studio  so maybe there is a way around this  but it appears that all version control in Android Studio is unified at the project level  and so all of your modules will be under a single git archive   This means that you may need to abandon your old git archive and start fresh with a new archive for your imported source code   And that means that you will want to keep your old git archive around  so that it can be used with Eclipse to perform any needed bug fixes  etc   at least for a while   And you also will want it to preserve a history of your project   If you are fortunate enough to have had all of your projects organized under a single Eclipse workspace  and if you were using a single git archive for those projects  then it is possible that you might just copy your old git archive from in and under your Eclipse workspace folder to in and under your Android Studio project folder   Then  you could edit any still-relevant  gitignore items from you Eclipse project into the auto-generated  gitignore file for your Android Studio project  and let git figure out what has been changed during the importing process  and some things will have been moved around - for example  the manifest file is no longer at the top level of your module    Others have reported that git is pretty good at figuring out what has changed  I have not tried this myself   But even if you did this  going back to a commit that precedes your move from Eclipse to Android Studio would be going back to a set of files that would only make sense from inside Eclipse   So it sounds  well   difficult  to work with   Especially since Eclipse will still be pointing to its original set of project folders    I personally had multiple git archives for my various sets of related projects  and so I decided to just make a clean break and start git over again in Android Studio   If you had to do this  it could affect your planning  because you would want to be at a very stable point in your code development before making the move in that case  since you will lose some accessibility to that older code within your version control system  e g   ability to merge with post-import code  once you have made the move to Android Studio   The part of this answer that pertains to git is partly speculative  since I have not actually worked with version control yet on my imported project files  but I wanted to include it to give some idea of the challenges  and I plan to update my answer after I have worked more with version control inside Android Studio

User · Answer

In addition to the answer by Scott Barta above  you may still have import problems if there are references to Eclipse workspace library files  with e g    workspace android-support-v7-appcompat   being a common one   In this case the import will halt until you provide a reference  and if you ve cloned from a git repo  it probably won t be there  and even pointing to your own install  e g  something like  android-sdk-macosx extras android m2repository com android support appcompat-v7  won t be recognised and will halt the import  leaving you in no-man s land   To get around this  look for refs in the project properties or  classpath files that came in from the Eclipse project and remove comment them out  e g    lt classpathentry combineaccessrules  false  kind  src  path   android-support-v7-appcompat   gt    That will get you past the import stage and you can then add these refs in your build gradle  Module app  as indicated in the Android tutorial  like below   dependencies       compile  com android support appcompat-v7 22 2 0

User · Answer

Its Got simpler with Android Studio All you need is to first choose   import project eclipse        then choose your folder eclipse based project like this one below    3 based on the type of project and library you used like  ActionBarSherlock  you may prompted special import wizard so go ahead and click next then finish  in this case it was simple one     4 And you are done    but sometimes the debug or Run options do not work and a error msg shows like       this project structure is not gradle based or migrate it to gradle    something  to solve this close the opened eclipse project and reopen same project through the same process as we did before with import project  eclipse adt gradle etc   this time android studio gonna add all necessary gradle files and green debug option will work too  i have did this somehow accidentally but it worked  i just hope it works for you too

User · Answer

Simple steps  1 Go to Android Studio  2 Close all open projects if any  3 There will be an option which says import non Android Studio Projects Eclipse ect   4 Click on it and choose ur project Thats t it enjoy

User · Answer

According to http   tools android com tech-docs new-build-system migrating-from-eclipse-projects  You have a couple of choices  - simply importing  - pre-exporting first from Eclipse   Pre-exporting from eclipse may be the better choice if your project contains a lot of relationships that are Eclipse-specific  A S  cannot  translate  everything Eclipse can produce  If you want to continue using Eclipse as well as A S  on this project code  this is the better choice  If you choose this method  please read the above link  there are some important pre-requisites  Simply importing into AS will let AS  translate  and rearrange the project  and is the recommended method  especially if you have no intention of returning to Eclipse  In this case  you let the A S  wizard do everything and you dont need to manually generate gradle files

User · Answer

Try these steps  1- click on Import project  Eclipse  ADT          2- Choose main directory of your Eclipse project    3- Keep the defaults  The first two options is for changing jar files into remote libraries  dependencies   It mean while building Android studio try to find library in local system or remote repositories  The last option is for showing only one folder as app after importing     4- Then  you will see the summary of changes    5- Then  if you see Gradle project sync failed  you should go to project view  top left corner   Then  you should go to your project-  app and open build gradle      6- Then  you should change your compilesdkVersion and targetsdkVersion to your current version that you see in buildToolsVersion  mine is 23   For example  in my project I should change 17 to 23 in two places  7- If you see an error in your dependencies  you should change the version of it  For example  in my project I need to check which version of android support library I am using  So  I open the SDK manager and go to bottom to see the version  Then  I should replace my Android studio version with my current version and click try again from top right corner        I hope it helps

User · Answer

Export from Eclipse  Update your Eclipse ADT Plugin to 22 0 or higher  then go to File   Export  Go to Android now then click on Generate Gradle build files  then it would generate gradle file for you    Select your project you want to export   Click on finish now    Import into Android Studio  In Android Studio  close any projects currently open  You should see the Welcome to Android Studio window   Click Import Project   Locate the project you exported from Eclipse  expand it  select it and click OK

[android] How do you import an Eclipse project into Android Studio now?

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