Gradle build error

Hi everyone!
Having strange error while build project.
In one of four computers. Three others comps compile it fine. And all four computers compile our another projects fine. Only one project. Only one computer have error. Can't find why.
Soft are similar

Unity3d 5.6.5 x64
Win10 x64
Java 8u91

Spoiler: Android packages

Spoiler: Error text

CommandInvokationFailure: Gradle build failed.
C:/Program Files/Java/jdk1.8.0_91\bin\java.exe -classpath "D:\Soft\Unity 5.6.5\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-2.14.jar" org.gradle.launcher.GradleMain "assembleRelease"

stderr[
Dex: Error converting bytecode to dex:
Cause: Dex cannot parse version 52 byte code.
This is caused by library dependencies that have been compiled using Java 8 or above.
If you are using the 'java' gradle plugin in a library submodule add
targetCompatibility = '1.7'
sourceCompatibility = '1.7'
to that submodule's build.gradle file.
UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.RuntimeException: Exception parsing classes
at com.android.dx.command.dexer.Main.processClass(Main.java:761)
at com.android.dx.command.dexer.Main.processFileBytes(Main.java:727)
at com.android.dx.command.dexer.Main.access$1200(Main.java:87)
at com.android.dx.command.dexer.Main$FileBytesConsumer.processFileBytes(Main.java:1655)
at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284)
at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166)
at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144)
at com.android.dx.command.dexer.Main.processOne(Main.java:681)
at com.android.dx.command.dexer.Main.processAllFiles(Main.java:578)
at com.android.dx.command.dexer.Main.runMonoDex(Main.java:315)
at com.android.dx.command.dexer.Main.run(Main.java:286)
at com.android.builder.internal.compiler.DexWrapper.run(DexWrapper.java:52)
at com.android.builder.core.AndroidBuilder$2.call(AndroidBuilder.java:1511)
at com.android.builder.core.AndroidBuilder$2.call(AndroidBuilder.java:1507)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.android.dx.cf.iface.ParseException: bad class file magic (cafebabe) or version (0034.0000)
at com.android.dx.cf.direct.DirectClassFile.parse0(DirectClassFile.java:472)
at com.android.dx.cf.direct.DirectClassFile.parse(DirectClassFile.java:406)
at com.android.dx.cf.direct.DirectClassFile.parseToInterfacesIfNecessary(DirectClassFile.java:388)
at com.android.dx.cf.direct.DirectClassFile.getMagic(DirectClassFile.java:251)
at com.android.dx.command.dexer.Main.parseClass(Main.java:773)
at com.android.dx.command.dexer.Main.access$1600(Main.java:87)
at com.android.dx.command.dexer.Main$ClassParserTask.call(Main.java:1694)
at com.android.dx.command.dexer.Main.processClass(Main.java:758)
... 17 more

1 error; aborting

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':transformClassesWithDexForRelease'.
> com.android.build.api.transform.TransformException: java.lang.RuntimeException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: Return code 1 for dex process

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
]
stdout[
Incremental java compilation is an incubating feature.
reBuild UP-TO-DATE
reReleaseBuild UP-TO-DATE
:checkReleaseManifest
reDebugBuild UP-TO-DATE
:FirebasereBuild UP-TO-DATE
:FirebasereReleaseBuild UP-TO-DATE
:Firebase:compileReleaseNdk UP-TO-DATE
:Firebase:compileLint
:Firebase:copyReleaseLint UP-TO-DATE
:Firebase:mergeReleaseProguardFiles
:FirebaseackageReleaseRenderscript UP-TO-DATE
:Firebase:checkReleaseManifest
:FirebaserepareReleaseDependencies
:Firebase:compileReleaseRenderscript
:Firebase:generateReleaseResValues
:Firebase:generateReleaseResources
:FirebaseackageReleaseResources
:Firebase:compileReleaseAidl
:Firebase:generateReleaseBuildConfig
:Firebase:mergeReleaseShaders
:Firebase:compileReleaseShaders
:Firebase:generateReleaseAssets
:Firebase:mergeReleaseAssets
:FirebaserocessReleaseManifest
:FirebaserocessReleaseResources
:Firebase:generateReleaseSources
:Firebase:incrementalReleaseJavaCompilationSafeguard
:Firebase:compileReleaseJavaWithJavac
:FirebaserocessReleaseJavaRes UP-TO-DATE
:Firebase:transformResourcesWithMergeJavaResForRelease
:Firebase:transformClassesAndResourcesWithSyncLibJarsForRelease
:Firebase:mergeReleaseJniLibFolders
:Firebase:transformNative_libsWithMergeJniLibsForRelease
:Firebase:transformNative_libsWithSyncJniLibsForRelease
:Firebase:bundleRelease
:unity-android-resourcesreBuild UP-TO-DATE
:unity-android-resourcesreReleaseBuild UP-TO-DATE
:unity-android-resources:compileReleaseNdk UP-TO-DATE
:unity-android-resources:compileLint
:unity-android-resources:copyReleaseLint UP-TO-DATE
:unity-android-resources:mergeReleaseProguardFiles
:unity-android-resourcesackageReleaseRenderscript UP-TO-DATE
:unity-android-resources:checkReleaseManifest
:unity-android-resourcesrepareReleaseDependencies
:unity-android-resources:compileReleaseRenderscript
:unity-android-resources:generateReleaseResValues
:unity-android-resources:generateReleaseResources
:unity-android-resourcesackageReleaseResources
:unity-android-resources:compileReleaseAidl
:unity-android-resources:generateReleaseBuildConfig
:unity-android-resources:mergeReleaseShaders
:unity-android-resources:compileReleaseShaders
:unity-android-resources:generateReleaseAssets
:unity-android-resources:mergeReleaseAssets
:unity-android-resourcesrocessReleaseManifest
:unity-android-resourcesrocessReleaseResources
:unity-android-resources:generateReleaseSources
:unity-android-resources:incrementalReleaseJavaCompilationSafeguard
:unity-android-resources:compileReleaseJavaWithJavac
:unity-android-resourcesrocessReleaseJavaRes UP-TO-DATE
:unity-android-resources:transformResourcesWithMergeJavaResForRelease
:unity-android-resources:transformClassesAndResourcesWithSyncLibJarsForRelease
:unity-android-resources:mergeReleaseJniLibFolders
:unity-android-resources:transformNative_libsWithMergeJniLibsForRelease
:unity-android-resources:transformNative_libsWithSyncJniLibsForRelease
:unity-android-resources:bundleRelease
repareAnimatedVectorDrawable2340Library
repareAppcompatV72340Library
repareCardviewV72340Library
repareCommonLibrary
repareCustomtabs2340Library
repareFacebookAndroidSdk4170Library
repareFacebookAndroidWrapper794Library
repareFirebaseAnalytics1180Library
repareFirebaseAnalyticsImpl1180Library
repareFirebaseAnalyticsImplLicense1180Library
repareFirebaseAnalyticsLicense1180Library
repareFirebaseAnalyticsUnity440Library
repareFirebaseAppUnity440Library
repareFirebaseCommon1180Library
repareFirebaseCommonLicense1180Library
repareFirebaseCore1180Library
repareFirebaseIid1180Library
repareFirebaseIidLicense1180Library
repareFirebaseMessaging1180Library
repareFirebaseMessagingLicense1180Library
repareFirebaseMessagingUnity440Library
repareGoogleAIDLLibrary
repareGooglePlayLibrary
repareGradleOutFirebaseUnspecifiedLibrary
repareGradleOutUnityAndroidResourcesUnspecifiedLibrary
reparePlayServicesBase1180Library
reparePlayServicesBaseLicense1180Library
reparePlayServicesBasement1180Library
reparePlayServicesBasementLicense1180Library
reparePlayServicesTasks1180Library
reparePlayServicesTasksLicense1180Library
repareSupportCompat2520Library
repareSupportCoreUi2520Library
repareSupportCoreUtils2520Library
repareSupportFragment2520Library
repareSupportMediaCompat2520Library
repareSupportV42520Library
repareSupportVectorDrawable2340Library
repareReleaseDependencies
:compileReleaseAidl
:compileReleaseRenderscript
:generateReleaseBuildConfig
:mergeReleaseShaders
:compileReleaseShaders
:generateReleaseAssets
:mergeReleaseAssets
:generateReleaseResValues
:generateReleaseResources
:mergeReleaseResources
rocessReleaseManifest
D:\Work\Unity\project\Temp\gradleOut\src\main\AndroidManifest.xml:49:3-140 Warning:
uses-permission#android.permission.READ_PHONE_STATE was tagged at AndroidManifest.xml:49 to remove other declarations but no other declaration present
D:\Work\Unity\project\Temp\gradleOut\src\main\AndroidManifest.xml:50:3-146 Warning:
uses-permission#android.permission.WRITE_EXTERNAL_STORAGE was tagged at AndroidManifest.xml:50 to remove other declarations but no other declaration present
D:\Work\Unity\project\Temp\gradleOut\src\main\AndroidManifest.xml:51:3-145 Warning:
uses-permission#android.permission.READ_EXTERNAL_STORAGE was tagged at AndroidManifest.xml:51 to remove other declarations but no other declaration present
rocessReleaseResources
:generateReleaseSources
:incrementalReleaseJavaCompilationSafeguard
:compileReleaseJavaWithJavac
:compileReleaseNdk UP-TO-DATE
:compileReleaseSources
:lintVitalRelease
rePackageMarkerForRelease
:transformClassesWithDexForRelease FAILED

BUILD FAILED

Total time: 26.028 secs
]
exit code: 1
UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg)
UnityEditor.Android.GradleWrapper.RunJava (System.String args, System.String workingdir, UnityEditor.Android.Progress progress)
Rethrow as GradleInvokationException: Gradle build failed
UnityEditor.Android.GradleWrapper.RunJava (System.String args, System.String workingdir, UnityEditor.Android.Progress progress)
UnityEditor.Android.GradleWrapper.Run (System.String workingdir, System.String task, UnityEditor.Android.Progress progress)
UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context)
UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context)
UnityEditor.HostView:OnGUI()

 

any ideas?

 

anybody?

 

Hi Julius, I'm having the same issue as Seraphim. I thought the same thing about the meaning of the error message, but I wasn't sure how to debug further. Are there any tools I can use to dump out the flags that were used to compile each of the plugins in my projects? Doing a bit of googling, I could write a script that would:
foreach (aar, jar plugin in project)

unpackage, get all .class files
foreach class

javap -verbose and check the major version numbers, verifying that they are all 51?​

if there's a faster way, I'm all ears - that sounds like a pain

edit: Yep, that was it! I was javac'ing a home-grown plugin without any source / target flags. I'm using JDK 8, so I guess it would have used 1.8 by default. I recompiled the plugin with -source 1.7 and -target 1.7, and the gradle build is working fine now.

 

Hi! can you share that script?

 

Yep!
It so.
One of our plugin was compiled with 1.8 Java.
After rebuild with 1.7 libraries changed 1 bit in code and now all working perfect.
Thanks a lot!