Error 23 17 Failed to resolve junit junit 4 12

Question

Why is it that every time I create a new project in Android Studio  it always comes up with      Error  23  17  Failed to resolve  junit junit 4 12    When I remove testCompile  junit junit 4 12  in dependencies it is not a problem anymore   build gradle  apply plugin   com android application   android       compileSdkVersion 23     buildToolsVersion  23 0 1       defaultConfig           applicationId  com okedroid myapplication          minSdkVersion 17         targetSdkVersion 23         versionCode 1         versionName  1 0            buildTypes           release               minifyEnabled false             proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro                     dependencies       compile fileTree dir   libs   include      jar        testCompile  junit junit 4 12      compile  com android support appcompat-v7 23 0 1

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I couldn t work out why Android Studio was not syncing with gradle  It turned out that it didn t like my VPN  so watch for that

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In my case was it was very wired  Besides adding a correct proxy  I m working within a company   I needed to add the other two libraries in the dependencies   compile  com android support appcompat-v7 25 0 1  compile  com android support design 25 0 1    then the error for  junit junit 4 12  was resolved   Make sure that all of the dependencies in build gradle match what you import in project structure

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If you are behind a proxy  Android Studio will add proxy for http to Gradle  but will not for https  Add proxy settings for https to gradle properties

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Go to File -  Project Structure -  dependency There you will find -   junit unit 4 12  On the right hand side   select compile from the drop down  Simple   its done   Reference Image    Reds  VV

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I had the same problem  but with another problem   My other problem was that the Gradle build was too slow   I resolved my problem by doing thisL  If you do like mdew you need to this any time you re creating your project to do this  So if you want to set default option to maven   Do this    Go to the folder   C  Program Files Android Android Studio plugins android lib templates gradle-projects NewAndroidProject root   Then open the build gradle ftl file with notepad   or notepad and replace all jcenter   with mavenCentral     EDIT  Why its going down voted  you don t like it

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I had same problem  but when I open my project with an Internet connection on i got everything cleared when the gradle build a syncing it automatically downloaded the relevant files and the J Unit plugin is required for testing

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I ll tryed everithing  but the only thing that helps me resolve the problem was delete the line   testCompile  junit junit 4 12    from the app gradel

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dependencies       compile fileTree dir   libs   include      jar           compile  com android support appcompat-v7 23 1 1      Note  Remove testCompile  junit junit 4 12  line has been solved my problem

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Be sure you are not behind a proxy   If you configured your Android Strudio to work with proxy be sure to disable that option under the Android Studio preferences  Go to gradle properties under Android view in Android Studio and delete all proxy configuration Sync your gradle now Enjoy coding

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The error is caused by missing jar files  My simple solution is just by copying all the files that does not resolve to the C  Program Files Android Android Studio gradle m2repository     your file path may be different   I got around 6 dependencies that cannot be resolved  junit is one of them and the others are com and org and javax  Since I am behind a firewall  even if I added the code for the repository  the Android Studio doesn t seem to access it  I went to the maven repository and downloaded all the files that will not resolve  Problem solved and the Gradle sync without error  But I am a certified newbie with only 1 day experience so I do not not if this is the proper way to do it    Example error   Cannot resolve com squareup javawriter 2 1 1  Step 1  I created a path C  Program Files Android Android Studio gradle m2repository com squareup javawriter 2 1 1    Step 2  I downloaded all the jar files from the maven repository   http   repo1 maven org maven2 com squareup javawriter 2 1 1   Step 3  I manually downloaded all the  jar files from this directory  Step 4  I copied them to C  Program Files Android Android Studio gradle m2repository com squareup javawriter 2 1 1    I repeated this to all the files that did not resolve including the junit   For junit  here is the directory I created   C  Program Files Android Android Studio gradle m2repository junit junit 4 12 and then I copied the junit-4 12 jar inside this directory and the junit error disappeared

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if you faced this problem you can completely resolve it by changing   build gradle project       replace this     buildscript       repositories           jcenter             dependencies           classpath  com android tools build gradle 2 0 0              NOTE  Do not place your application dependencies here  they belong            in the individual module build gradle files          allprojects       repositories           mavenCentral             task clean type  Delete        delete rootProject buildDir

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I was having same problem    1 option  Download junit 4 12 jar and copy it in your lib folder and restart android studio  Benefit u don t have to create any new project 2 option  Create a new project having a internet connections and copy all the java and XML code in the newly created project  Benefit this problem will be solved permantly

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It s not able to get junit library   repositories           maven   url  http   repo1 maven org maven2            After adding above line inside android block in build gradle file  it resolved problem  This can be because your Android studio doesn t have junit library

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If none of these answers for you  try clearing the Android Studio cache restart  That was the only thing that worked for me   From the file menu option  I selected  invalidate caches restart    https   teamtreehouse com community gradle-project-sync-failed-7

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When you are not behind a company firewall  using the Android Studio will resolve that issue naturally  But if you are behind a company firewall  this problem will occur  So downloading the files will be a workaround  On your own home network  updating Android Studio will resolve the issue and will ask you to delete those files that you have manually created  Just press OK as it is safe to remove them

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In my case  I just add   allprojects   repositories       jcenter       maven   url  https   maven google com

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Remove the line testCompile  junit junit 4 12  dependencies     compile fileTree dir   libs   include      jar      compile  com android support appcompat-v7 23 0 1      After that sync the project again

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Go to Go to  File  -   Project Structure  -   App  In the tab  properties   In  Library Repository  field put  http   repo1 maven org maven2  then press Ok  It was fixed like that for me  Now the project is compiling

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Go to File -  Project Structure  Following window will open     From there    remove the junit library  select junit and press  -  button below   and add it again  select     button below  select  library dep    search for  junit   press OK    Press OK to apply changes  After around 30 seconds your gradle sync should work fine    Hope it works for you too  D

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In my case  it s just because internet connection  Maybe some proxy or wifi firewall or other things which is probably disturb the connection  Because when I visit the link manually here chrome said the file may harm your computer   So I tried using another connection such tethering hotspot from my phone

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Try this   dependencies       compile fileTree include      jar    dir   libs         testCompile  junit junit 4 12      compile  com android support appcompat-v7 23 3 0      compile  com android support design 23 3 0      compile  com google code gson gson 2 2 4

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CHANGE your build gradle like with this  work fine for me   apply plugin   com android application   android       compileSdkVersion 23     buildToolsVersion  22 0 1      repositories           maven   url  http   repo1 maven org maven2              defaultConfig           applicationId  YOUR PACKAGE NAME          minSdkVersion 15         targetSdkVersion 23         versionCode 1         versionName  1 0            buildTypes           release               minifyEnabled false             proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro                     dependencies       compile fileTree dir   libs   include      jar        testCompile  junit junit 4 12      compile  com android support appcompat-v7 23 0 0      added       repositories           maven   url  http   repo1 maven org maven2            to android

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Mostly this issue will come when ever you update your SDK  at the time of project creation Gradle build fails  If you add the maven and jcenter repositories to your build gradle Module app  your problem will solved   repositories       maven   url  http   repo1 maven org maven2        jcenter   url  http   jcenter bintray com         These are the two line you have to add after   apply plugin   com android application     This is how your code look like after adding those two lines  apply plugin   com android application    repositories           maven   url  http   repo1 maven org maven2            jcenter   url  http   jcenter bintray com            android       compileSdkVersion 23     buildToolsVersion  23 0 1       defaultConfig           applicationId  com okedroid myapplication          minSdkVersion 17         targetSdkVersion 23         versionCode 1         versionName  1 0            buildTypes           release               minifyEnabled false             proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro

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If any one get error  failed-to-resolve-junitjunit4-12  then go to HTTP PRoxy setting check your internet connection  if you are using any proxy server at school   college then set your proxy setting and test connect if it successful then apply setting and run again gradle you will get resolve all error  I try this and i resolve all errors   Note   no need to remove Junit       Umair

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I would love to suggest the solution  which perfects suitable for my situation    at first  make sure add   repositories       maven   url  http   repo1 maven org maven2        to project-level build gradle file inside the buildscript    block then add   allprojects       repositories           maven   url  http   repo1 maven org maven2            to project-level build gradle file the next point is adding   repositories       jcenter       mavenCentral       to module-level build-gradle inside buildTypes

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Probably your gradle is incomplete  I recommend you add the following     android      repositories       maven   url  http   repo1 maven org maven2        but in some cases won t work   you can completely delete it from you dependencies in your gradle   I think it will be OK if you reinstall the android studio with the deleting gradle folder condition which is in user folder  gradle

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Just remove the  testCompile  junit junit 4 12   from build gradle file   dependencies   compile fileTree dir   libs   include      jar    testCompile  junit junit 4 12   remove this line and sync again    worked for me  androidTestCompile  com android support test espresso espresso-core 2 2 2         exclude group   com android support   module   support-annotations      if available  also delete these two lines  compile  com android support appcompat-v7 23 0 1       worked for me and I am Happy       Remember that this is not the actual answer of this question  I mentioned this because it works when you remove above lines

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add repository in your build gradle file  repositories       maven   url  http   repo1 maven org maven2

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Erase all the Junit dependencies and add this on the dependencies  testImplementation  junit junit 4 12  androidTestImplementation  androidx test ext junit 1 1 2  androidTestImplementation  androidx test espresso espresso-core 3 3 0  androidTestImplementation  androidx test runner 1 3 0  androidTestImplementation  androidx test rules 1 3 0  androidTestImplementation  androidx test core 1 3 1-alpha02

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It might be it is not able to get it at the specified online location for the jar check this part of build gradle  gradle file for project   you might not be having access to the location firewall or other issues   repositories    some location like jcenter   or maven  some location        Do this  download the jar  add this line inside the   repositories             previous codes untouched         flatDir               dirs  location to jar                hope that works

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Just connect to Internet and start Android Studio and open your project  While Gradle Sync it will download the dependencies from Internet All JAR Files   This solved it for me  No Editing in Gradle file  all was done by Android Studio Automatically  Using Android Studio 2 2     Also don t forget to install Java JDK 1 x 7 or 8 all works fine

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I received this error after creating a new project  In the build gradle file  I had this     jcenter     I change it to the following and the error went away     jcenter       url  http   jcenter bintray com       I think this is because I am behind a firewall and specifying the url like so changes it from https to http

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You should to address Java to windows    Open this address   control panel system and security system  From left side choose  Advanced system settings  In the advanced tab  choose  Environment Variables  In opened window  below  system variables   choose  New   Set variable name to JAVA HOME  and the variable value to the address you installed Java  For example  for me it is C  ProgramFiles Java jdk1 8 0 66  After that  click the okay button  Restart Android Studio

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Before   testImplementation  junit junit 4 12  androidTestImplementation  com android support test runner 1 0 2  androidTestImplementation  com android support test espresso espresso-core 3 0 2    After   testImplementation  junit junit 4 12   androidTestImplementation  com android support test runner 1 0 2   androidTestImplementation  com android support test espresso espresso-core 3 0 2      Worked for me

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Simply try to compile and run you project while having active internet connection    it worked for me in Android studio 1 5 Ubuntu 15 04

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This answer might be a bit late  but after spending a few hours working through the answers nothing worked for me  After reading the error log patiently i realized that android studio tried to use a cached version of JUnit with a wrong hash code  The solution to this was to delete the C  Android caches modules-2 directory and restart the build   Hope this helps

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Look through for many answers but nothing works  Fortunately had found the easy solution  No need to comment junit4 12 or delete it  The problem is here   - androidTestCompile files  libs junit-4 12 jar     This part shows us the path to look for the file in the library in your s project  No idea why but for some reason by the default it is empty  In my case the path is   C  Users arzakhar AndroidStudioProjects MyApp app libs   Sure you can delete this line in code build grandle Module app  but you may need it later  Here is the solution   1 - download junit-4 12 jar or copy it from you Android Studio folder  normally it should be there  In my case  it was here    C  Program Files Android Android Studio lib   to the directory mentioned above to your project   2 - delete  amp  add    3 - rebuild  4 - work hard

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In my case the solution was to add   repositories       mavenCentral       to module-level build-gradle inside buildTypes     Suppose that without it AndroidStudio can t download junit from maven

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My installation of Android Studio is completely offline  To resolve these kind of problems I have used the Process Monitor  It showed that a few files are missing within  Android Studio gradle m2repository   I have downloaded all files from   http   repo1 maven org maven2 junit junit 4 12  http   repo1 maven org maven2 org hamcrest hamcrest-core  repo1 maven org maven2 org hamcrest hamcrest-parent 1 3   I can only post two links    -     and copied these files in  Android Studio gradle m2repository   You have to create the structure below  m2repository  as it is below  maven2   Maybe there are more missing files  but at this time at least Gradle build is finished without errors

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Change repository to mavenCentral   except jcenter   everything will be Ok

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Probably you are behind proxy  Happened to me  used my mobile tethering  no proxy  rebuild project and error disappeared  Returned to original connection  with proxy  and rebuild with no errors

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If you re behind a proxy server  just add your proxy settings in gradle properties   systemProp http proxyHost x xx xx x  systemProp http proxyPort xxxx  systemProp https proxyHost x xx xx x  systemProp https proxyPort xxxx   It worked for me

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I had the same problem  Solved by adding url for missing repository in the build gradle file   android                 repositories           maven   url  http   repo1 maven org maven2                        That s it

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Here is what I did to solve the same problem  I am behind a firewall  which is same issue as yours I suppose  So I had tried removing the   testCompile  junit junit 4 12  line    but that didnt work for me  I tried adding below lines of code   repositories       maven   url  http   repo1 maven org maven2        Even that did not work for me   I tried removing  -  and readding     Junit4 12 from the library dependencies under Module Settings  Still that did not work for me   Tried syncing and rebuilding project several times  Still did not work for me   Finally what I did was to manually download the Junit4 12 jar file from mvnrepository website  I put this jar file in the Androids Workspace under the Project folder inside libs folder  Then go to Module Settings   Dependencies Tab         File Dependency   under Sleect path window  expand the  libs  folder and you will find the Jar file you copied inside there  Select the File and click  OK  Now remove the previous version of junit4 12 from the list of dependencies   You should have one entry  libs junit-4 12 jar  in the Dependencies list  Now click  OK    Now Gradle will rebuild the project and you should be good to go   Hope this helps

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It happens because HTTPS is blocked by Proxy  Try to change from default jcenter  which uses HTTPS  into HTTP   Before repositories        jcenter      After repositories       jcenter             Default one is HTTPS         url  quot http   jcenter bintray com  quot           Repeat the above step for allprojects  allprojects     repositories       jcenter           url  quot http   jcenter bintray com  quot               Or changing from jcenter to mavenCentral also worked repositories      mavenCentral

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Are you using proxy  If so  the problem can be in missing network configuration for https in your gradle properties file    AndroidStudio puts automatically your default proxy settings to gradle properties file in your project  but only for http and forgets https   So basically your gradle properties file needs to contain both http and https config   systemProp http proxyPassword xxx systemProp http proxyHost xxx systemProp http nonProxyHosts xxx systemProp http proxyUser xxx systemProp http proxyPort xxx  systemProp https proxyPassword xxx systemProp https proxyHost xxx systemProp https nonProxyHosts xxx systemProp https proxyUser xxx systemProp https proxyPort xxx

[java] Error:(23, 17) Failed to resolve: junit:junit:4.12

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