Import Maven dependencies in IntelliJ IDEA

Question

I have a small question about IntelliJ IDEA 11  I just imported a project from subversion - its a maven project  But I have a problem in maven library dependencies so that I can t include all maven dependencies automatically - IDEA shows dependency errors only when I open that class  Thats what I get here     So I want all dependencies to be added automatically - is that possible or do I have to go through all class files to identify and add maven dependencies    UPDATE  After doing some modifications I found how to resolve my problem in some way  Thats what I did    but I think logically it will not include and check new dependencies ahead      Is there any settings area for this in intelliJ - auto export dependencies to classpath

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I had a similar issue  in my case I am using a custom settings xml which was not picked from IntelliJ    Solution  File  gt  Settings  gt  Build  Execution  Deployment  gt  Maven  User settings file  chose here my custom settings xml

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If certain maven modules are not compiling check if their pom xml is on the  ignored files  list  In IntelliJ goto      preferences -  project settings -  maven -  ignored files   and check if the related pom xml is ignored

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In my case  one of the modules was ignored for some reason  To resolve that  Right click the problematic module and choose  Unignore Projects

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i was able to fix mine by adding this lines of code after the build tag in the pom xml file  i compared it from my running project and discovered that was the difference  now i m all good    lt repositories gt           lt repository gt               lt id gt spring-snapshots lt  id gt               lt name gt Spring Snapshots lt  name gt               lt url gt https   repo spring io snapshot lt  url gt               lt snapshots gt                   lt enabled gt true lt  enabled gt               lt  snapshots gt           lt  repository gt           lt repository gt               lt id gt spring-milestones lt  id gt               lt name gt Spring Milestones lt  name gt               lt url gt https   repo spring io milestone lt  url gt           lt  repository gt       lt  repositories gt       lt pluginRepositories gt           lt pluginRepository gt               lt id gt spring-snapshots lt  id gt               lt name gt Spring Snapshots lt  name gt               lt url gt https   repo spring io snapshot lt  url gt               lt snapshots gt                   lt enabled gt true lt  enabled gt               lt  snapshots gt           lt  pluginRepository gt           lt pluginRepository gt               lt id gt spring-milestones lt  id gt               lt name gt Spring Milestones lt  name gt               lt url gt https   repo spring io milestone lt  url gt           lt  pluginRepository gt       lt  pluginRepositories gt

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Open IntelliJ Idea  Go to    File   Other Settings   Default Settings      Maven  Preferences    Importing   or   Preferences  gt  Maven  gt  Importing    Click on Enable Auto-import in the console

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Importing Maven dependencies may not work if you import the same path several times  This may happen automatically after importing an existing maven project  I can t figure out why this happens  so I m inclined to think it is a bug   For example  if my project is  hibernate   src main   src test   the three paths may be imported as top nodes   hibernate src main src test   If such is the case  the dependencies appear to be right  but they won t be used until you remove the superfluous paths  in this case  src main and src test   Once you do this  refresh and click Build   Rebuild Project  IDEA will pick up the dependencies   A symptom of this problem is that IDEA warns you of a duplicated path when you manually check a library  second screenshot in the question    There are several ways to re-read the dependencies in case you need it  If you go to the    Maven Projects    tab  there is a    Reimport All Maven Projects    icon at the top left of the tab  If you suspect IDEA became confused you can click on File   Invalidate Caches

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The problem appears to be that despite listing your dependencies in the pom xml   IntelliJ IDEA does not rebuild those dependencies when you run your project   What worked for me is this   Go to  Run  -   Edit Configurations      find your application  make sure the  Before launch   section is expanded  click the green plus sign  and select  Build Project

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Fix before IntelliJ 14  File  menu  -  Settings -  maven -  importing and uncheck  use maven3 to import project    ref  http   youtrack jetbrains com issue IDEA-98425  which may have a few other ideas too   Fix IntelliJ 15   Ran into this again  with IntelliJ 15 this time  which has no  use maven3 to import  option available anymore   The cause was that sometimes IntelliJ  doesn t parse maven dependencies right  and if it can t parse one of them right  it gives up on all of them  apparently   You can tell if this is the case by opening the maven projects tool window  View menu -  Tool Windows -  Maven Projects    Then expand one of your maven projects and its dependencies   If the dependencies are all underlined in red   Houston  we have a problem      You can actually see the real failure by mousing over the project name itself      In my instance it said  Problems  No versions available for XXX  or  Failed to read descriptor for artifact org xy z  ref  https   youtrack jetbrains com issue IDEA-128846 and https   youtrack jetbrains com issue IDEA-152555  It seems in this case I was dealing with a jar that didn t have an associated pom file  in our maven nexus repo  and also my local repository    If this is also your problem   urrent work around  if you do not actually need to use classes from that jar in your own code  for instance a transitive maven dependency only   you can actually get away with commenting it out from the pom  temporarily   maven project reload  and then uncomment it   Somehow after that point IntelliJ  remembers  its old working dependencies   Adding a maven transitive exclude temporarily might also do it  if you re running into it from transitive chain of dependencies    Another thing that might help is to use a  newer version  of maven than the bundled 3 0 5  In order to set it up to use this as the default  close all your intellij windows  then open preferences -  build  execution and deployment -  build tools -  maven  and change the maven home directory  it should say  For default project  at the top when you adjust this  though you can adjust it for a particular project as well  as long as you  re import  after adjusting it   Clear Caches  Deleting your intellij cache folders  windows  HOMEPATH   IntellijIdea IdeaC XXX linux    IdeaIC15  and or uninstalling and reinstalling IntelliJ itself  This can also be done by going to File  menu  -  Invalidate Caches   Restart     Click invalidate and restart  This will reindex your whole project and solve many hard-to-trace issues with IntelliJ

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If everything else fails  check if the jar file in your local  m2 repository is indeed valid and not corrupted  In my case  the file had not been fully downloaded

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In my case  path for JAVA used by MAVEN was not set as JAVA HOME as configured on the machine  Hence  it was not even trying to download the dependencies  Steps I followed which solved this issue   Checked for JAVA path   Settings  gt  gt  Build  gt  gt  Build Tools  gt  gt  Importing  gt  gt  JDK for importer  Pointed it to JAVA HOME   mvn clean install -U Used above command to force the dependencies download   Re imported Maven Projects

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I solved this issue by updating my settings xml file with correct mirror config  seems that intellij will try to download meta-data from repository every time the maven module imported

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I had the same issue and tried all the answers mentioned here  none worked    The simple solution is go to your project folder and delete all the  idea and  iml files and restart the IntelliJ ide  It works  No need to do anything with the settings

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For IntelliJ 2016-2 4  and I believe other new-ish versions    View   Tool Windows   Maven Projects  In the newly revealed toolbar  select Maven settings  icon of a toolset    When this screen opens  expand the Maven menu and click  Importing   Here  click  Import Maven projects automatically    Also ensure that the  JDK for Importer  option matches the JDK version you mean to use   Click OK   Now go to the red dependency in your pom xml  select the red lightbulb  and click  Update Maven indices

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Deleting the  idea folder from the project directory  and then re-importing the project as a Maven project is what worked for me

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Try to Re-Import the project from the Maven Projects panel in IntelliJ IDEA  It should download and configure all the dependencies defined in your pom xml automatically   If download doesn t work from IDEA for some reason  try mvn install from the command line and see if the dependencies can be fetched   Of course all the required dependencies and any custom repositories must be defined directly in the pom xml file

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When importing the project  select pom xml instead of the project directory  It should work

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When you create a new project you simply need to choose the option       Import project from external model Create IDEA project structure over existing external model  Eclipse  Maven          You ll find it pretty straight forward from there   And in your case you can close your project and simply create a new one  Choose your project s directory  which will override it  making it a Maven project

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What helped me   Navigage  Settings   Build  Execution  Deployment   Maven  Specify  Maven home directory  - the place you installed the maven

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First check path Specified for User Settings file  in Settings -  Build Execution Development -  Build Tools -  Maven   The field should have path of the settings xml of your maven  Also the settings xml should have correct path of remote repository

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Reimport the project  If you install maven plugin you can use this   Right click on the project -  Maven -  Reimport

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Maven - Reimport did not work for me  I have Spring project in STS Eclipse  and my solution is to import project to IDEA like so   1  File - New - Project from Existing Sources    - select directory - choose Eclipse  2  Set Maven autoimport to true in settings  3  Then right click in pom xml and choose Add as Maven Project  After this it has imported everything

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I had the similar issue with my macbook  just did a small change in pom xml and it started downloading all dependencies   Earlier dependencies were written as below for my windows machine    lt dependencies gt    lt dependency gt     lt groupId gt javax mail lt  groupId gt     lt artifactId gt mail lt  artifactId gt     lt version gt 1 4 lt  version gt   lt  dependency gt   lt  dependencies gt    I just removed the  lt dependencies gt  and  lt  dependencies gt  tags and it started downloading all the dependencies    lt dependency gt     lt groupId gt javax mail lt  groupId gt     lt artifactId gt mail lt  artifactId gt     lt version gt 1 4 lt  version gt   lt  dependency gt    I am not sure it will work for you or not   but worked fine for me   Thanks

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A possible pattern for this issue is that you dont have connection to Nexus and basically you want to build the project in offline mode  But when you import the project Idea tries to download Maven dependencies automatically   and fails  You set Work Offline checkbox in Settings  but its too late  something was already broken during initial download attempt  Neither of the options listed here worked for me to resolve this  Instead I did the following   first created empty Java  not Maven  project checked Work Offline option in Maven settings added my project as a Maven module to this new project  This way it worked

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Go into your project structure  under project Settings  Modules  select the dependencies table  For each dependency  change the scope from  Test  to  Compile

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I ran into the problem that some subdependencies couldn t be resolved in IntelliJ 2016 3 X  This could be fixed by changing the Maven home  directory in Settings   Build  Execution  Deployment   Build Tools   Maven from Bundled  Maven 3  to  usr share maven   After that all subdependencies got resolved as in previous IntelliJ versions

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re-import-maven -  close-intellij -  delete-the-entire   - idea-folder -  re-open-the-project -  build -  build-project build-module- your parent module

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IntelliJ should download and add all your dependencies to the project s classpath automatically as long as your POM is compliant and all the dependencies are available   When importing Maven projects into IntelliJ an information box usually comes up asking you if you want to configure Auto-Import for Maven projects  That means that if you make any changes to your POM those changes will be loaded automatically   You can enable such feature going to File   Settings   Maven   Importing  there is a checkbox that says  Import Maven projects automatically    If that doesn t help  then I would suggest to make a full clean-up and start again    Close your project window  and IntelliJ  and remove all   iml files and all  idea folders  there should be one per module  Run mvn clean install from the command line Re-import the project into IntelliJ and pay attention when it asks you to enable auto-import   IntelliJ 2016 Update   The Import Maven Projects automatically setting has been moved to Build  Execution  Deployment   Build Tools   Maven   Importing in your IntelliJ preferences

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I was able to resolve it by removing unnecessary modules from Project Settings -  Modules list     It turns out these additional modules were created automatically by IntelliJ IDEA when I created the IntelliJ project by importing from the project folder  instead of by opening pom xml   Then  after declaring the project as Maven project  proper modules were created  and existing modules were conflicting with them  It is also possible to exclude those modules during project creation

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I faced the same problem and tried everything suggested which did not solve the issue  I was using Intellij version 13 1 3  Finally after spending more than couple of hours trying to fix it  I decided to try an upgraded version and opened the project in version 14 1 4 which ultimately resolved the issue  I would think this as a probable bug in the previous version   I hope this helps

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Hijacking a bit to add what ended up working for me   Go into the Maven Projects sidebar on the right edge of the IDE  and verify that your dependencies are listed correctly under your module there  Assuming they are  just ask IDEA to reimport then  the first button at the top  looks like two blue arrows forming a counter-clockwise circle    Once I did that  and let IDEA reload the project for me  all my dependencies were magically understood   For reference  this was with IDEA 13 1 2

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In maven the dependencies got included for me when I removed the dependencyManagement xml section and just had dependencies directly under project section

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From maven tab click   and choose pom xml From maven tab click download sources and documentation On project structure where you can view project files directories  right click the project you re trying to build and choose Build Module Project Name  From tab Run- Edit Configurations with   add Application and fill the below fields  i  Main Class- Manually choose from Project tab select the main class ii  Use classpath of module - choose the application name iii  Shorten command line - classpath file Now simply run the app

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If in the lower right corner it says  2 processes running     or similar  you may just need to wait for that to finish  since it may take time to download all the jars

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You might be working under a company s internal network   If so  to download or add external Maven dependencies your settings xml file under user  lt username gt   m2 folder might need to be updated   Contact your administrator to provide the right settings xml file and then paste it into you  m2 folder

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