Can't run on Desktop: cannot find class com.badlogic.gdx.ApplicationListener

Question

Can't run on Desktop: cannot find class com.badlogic.gdx.ApplicationListener

obigu opened this issue 7 years ago · 27 comments

Issue details

There appears to be a bug on IntelliJ Idea which prevents the app from launching on Desktop from both IntelliJ and Android Studio on a Mac (still to confirm if it affects Windows as well). A Reddit post was created on /r/libgdx as well as an issue created on Jetbrains issue tracker (see https://www.reddit.com/r/libgdx/comments/612c7d/can_run_on_android_cannot_run_on_desktop/ for details).

Even if it's no a libGDX bug I believe it is helpful to keep track on the progess of this as many users will see this crash when trying to launch on desktop using their IDE, feel free to close it otherwise.

Reproduction steps/code

Try to launch on Desktop a libGDX project using Intelli J version 2017.2.1 or Android Studio 2.3.3 on a Mac.

Version of LibGDX and/or relevant dependencies

1.9.6

Stacktrace

java.lang.ClassNotFoundException: cannot find class com.badlogic.gdx.ApplicationListener

Please select the affected platforms

Answer 1 · 2017-08-13T16:14:55.000Z

How are you importing the project?

Answer 2 · 2017-08-14T01:59:22.000Z

Ok, I've been trying different stuff and it may be an issue with my specific IDE and not related to the Reddit post. If I import a new project on Android Studio (File -> New -> Import Project) it runs on Desktop through the IDE Ok for a while and then starts failing (with the described error) and never recovers. On several attempts the trigger to start failing has been different so either I try to find out what caused it or I may create a fresh new environment in case it's gone corrupt. I'll close this issue for the moment.

Answer 3 · 2017-08-27T14:38:03.000Z

Found the issue (it's not related to the Reddit post described in Issue Details). Setting Gradle wrapper to version 3.3 fixes it (it took me a bit to find out because Gradle version changes were not being applied immediately). On Gradle 3.5.1 or 4.0.2 the game doesn't launch on Desktop from the IDE neither on Android Studio nor Idea both on Windows and Mac even if it does from gradlew using console.

Answer 4 · 2017-11-14T19:17:16.000Z

I'm facing the same issue right now... Is downgrading really a fix? More like a temporary workaround. Moreover, on the latest Android Studio, you're forced to use the updated version of Gradle plugin and this problem cannot be fixed with this workaround.

I believe the problem should be fixed on a deeper level.

Answer 5 · 2017-11-15T09:24:10.000Z

This is something discussed here: #4946
Android Studio 3.0 uses Gradle 4.+
Unfortunately LibGDX is not compatible (for now). it will be some day according to #4698
You can use another IDE or an older version of Android Studio using on of the links provided in the issue above.

and yes, it is a work around for now.

Answer 6 · 2017-11-21T16:58:49.000Z

I got it to work with a minor hack and some user intervention required. Change task run(...) to task runAndroid(...) in the android build.gradle. I believe the issue is that the desktopbuild.gradle also has a task called run. Android studio appears to be blending and/or calling both causing the error.

Also To make sure the "build process" closes properly you will need to add System.exit(0); to the end of DesktopLauncher.main().

Answer 7 · 2017-11-21T17:40:43.000Z

Ok that was much more painful than it needed to be. Turns out you can just tell Android Studio to run a JAR application and execute gradle :desktop:dist before hand.

For this approach set Path to JAR to PROJECT_ROOT\desktop\build\libs\desktop-1.0.jar and Working Directory that same as you would for running an application. Lastly in the Before launch at the bottom I added a gradle task with project YOUR_GAME:desktop and task desktop:dist.

Answer 8 · 2018-02-22T03:29:31.000Z

Just for clarity, you need to add a new run configuration, you can't modify your existing one since it isn't the proper type.

Open the Run/Debug Configurations page.
Create a new Configuration of type JAR Application.
Set the Path to JAR and Working directory as above.
Add the Before launch gradle task as above.

Answer 9 · 2018-04-13T18:39:17.000Z

See #4698 my last comment it is now fixed using normal Application configuration.

Answer 10 · 2018-05-28T13:25:11.000Z

Morning all

I have a LibGDX project for iOS (MOE), Android and Desktop. I have just discovered that Desktop is not longer running. IT IS in KOTLIN!

I did try to upgrade to gradle 4.4, build 3.1.1 and latest AS but then non of the projects would compile with weird error like Program type already present: com.badlogic.gdx.sql.Database. I even took out all refs to this

So now I am running
Gradle 4.1
Build tools 2.3.3

All I want to fix is getting the desktop app working (iOS/ Android work If I run the normal Desktop Launcher I get
Error: Could not find or load main class com.burfdevelopment.hack24.desktop.DesktopLauncher

If I do the .jar workaround, I get
no main manifest attribute, in /Users/snrb/Documents/Hack24-Cross/Hack24/desktop/build/libs/desktop-1.0.jar

Answer 11 · 2018-05-28T13:49:50.000Z

You must be using at least gradle 4.6 to run on newest IDEA and AS.

Answer 12 · 2018-05-28T14:34:52.000Z

So 4.6 Gradle, 3.12 AS and what version of Build tools?

Desktop, Android and iOS work fine on this?

Answer 13 · 2018-05-28T14:43:11.000Z

see snapshot versions declared here: https://libgdx.badlogicgames.com/versions.html

Answer 14 · 2018-05-28T15:41:57.000Z

Updating I get Program type already present: com.badlogic.gdx.sql.Database
Message{kind=ERROR, text=Program type already present: com.badlogic.gdx.sql.Database, sources=[Unknown source file], tool name=Optional.of(D8)}

Answer 15 · 2018-05-28T15:52:11.000Z

Invalidate caches, and run a gradle sync then a full rebuild

Answer 16 · 2018-05-29T06:59:07.000Z

So I had to remove the sql libs for this to compile for Android.

Desktop/iOS still does not run, it errors with (All I did is right click run DesktopLauncher/MOE)
(Kotlin 1.2.40, RoboVm 2.3.3, MOE 1.4.1, Build tools 3.1.0, AS Latest, Gradle 4.6)

java.lang.NullPointerException
at java.util.Objects.requireNonNull(Objects.java:203)
at com.android.build.gradle.BasePlugin.lambda$configureProject$1(BasePlugin.java:436)
at sun.reflect.GeneratedMethodAccessor369.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:42)
at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:230)
at org.gradle.internal.event.BroadcastDispatch$SingletonDispatch.dispatch(BroadcastDispatch.java:149)
at org.gradle.internal.event.AbstractBroadcastDispatch.dispatch(AbstractBroadcastDispatch.java:58)
at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:324)
at org.gradle.internal.event.BroadcastDispatch$CompositeDispatch.dispatch(BroadcastDispatch.java:234)
at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:140)
at org.gradle.internal.event.ListenerBroadcast.dispatch(ListenerBroadcast.java:37)
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy124.graphPopulated(Unknown Source)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:128)
at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:37)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
at org.gradle.execution.DefaultBuildExecuter.access$000(DefaultBuildExecuter.java:23)
at org.gradle.execution.DefaultBuildExecuter$1.proceed(DefaultBuildExecuter.java:43)
at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:46)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:37)
at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:30)
at org.gradle.initialization.DefaultGradleLauncher$ExecuteTasks.run(DefaultGradleLauncher.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
at org.gradle.initialization.DefaultGradleLauncher.runTasks(DefaultGradleLauncher.java:210)
at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:140)
at org.gradle.initialization.DefaultGradleLauncher.executeTasks(DefaultGradleLauncher.java:115)
at org.gradle.internal.invocation.GradleBuildController$1.call(GradleBuildController.java:78)
at org.gradle.internal.invocation.GradleBuildController$1.call(GradleBuildController.java:75)
at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:152)
at org.gradle.internal.invocation.GradleBuildController.doBuild(GradleBuildController.java:100)
at org.gradle.internal.invocation.GradleBuildController.run(GradleBuildController.java:75)
at org.gradle.tooling.internal.provider.runner.BuildModelActionRunner.run(BuildModelActionRunner.java:53)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.launcher.exec.ChainingBuildActionRunner.run(ChainingBuildActionRunner.java:35)
at org.gradle.tooling.internal.provider.ValidatingBuildActionRunner.run(ValidatingBuildActionRunner.java:32)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner$1.run(RunAsBuildOperationBuildActionRunner.java:43)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
at org.gradle.launcher.exec.RunAsBuildOperationBuildActionRunner.run(RunAsBuildOperationBuildActionRunner.java:40)
at org.gradle.tooling.internal.provider.SubscribableBuildActionRunner.run(SubscribableBuildActionRunner.java:51)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:49)
at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:32)
at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:39)
at org.gradle.launcher.exec.BuildTreeScopeBuildActionExecuter.execute(BuildTreeScopeBuildActionExecuter.java:25)
at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:80)
at org.gradle.tooling.internal.provider.ContinuousBuildActionExecuter.execute(ContinuousBuildActionExecuter.java:53)
at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:57)
at org.gradle.tooling.internal.provider.ServicesSetupBuildActionExecuter.execute(ServicesSetupBuildActionExecuter.java:32)
at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:36)
at org.gradle.tooling.internal.provider.GradleThreadBuildActionExecuter.execute(GradleThreadBuildActionExecuter.java:25)
at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:43)
at org.gradle.tooling.internal.provider.ParallelismConfigurationBuildActionExecuter.execute(ParallelismConfigurationBuildActionExecuter.java:29)
at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:64)
at org.gradle.tooling.internal.provider.StartParamsValidatingActionExecuter.execute(StartParamsValidatingActionExecuter.java:29)
at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:59)
at org.gradle.tooling.internal.provider.SessionFailureReportingActionExecuter.execute(SessionFailureReportingActionExecuter.java:44)
at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:45)
at org.gradle.tooling.internal.provider.SetupLoggingActionExecuter.execute(SetupLoggingActionExecuter.java:30)
at org.gradle.launcher.daemon.server.exec.ExecuteBuild.doBuild(ExecuteBuild.java:67)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.WatchForDisconnection.execute(WatchForDisconnection.java:37)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.ResetDeprecationLogger.execute(ResetDeprecationLogger.java:26)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.RequestStopIfSingleUsedDaemon.execute(RequestStopIfSingleUsedDaemon.java:34)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:74)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput$2.call(ForwardClientInput.java:72)
at org.gradle.util.Swapper.swap(Swapper.java:38)
at org.gradle.launcher.daemon.server.exec.ForwardClientInput.execute(ForwardClientInput.java:72)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.LogAndCheckHealth.execute(LogAndCheckHealth.java:55)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.LogToClient.doBuild(LogToClient.java:62)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.EstablishBuildEnvironment.doBuild(EstablishBuildEnvironment.java:82)
at org.gradle.launcher.daemon.server.exec.BuildCommandOnly.execute(BuildCommandOnly.java:36)
at org.gradle.launcher.daemon.server.api.DaemonCommandExecution.proceed(DaemonCommandExecution.java:122)
at org.gradle.launcher.daemon.server.exec.StartBuildOrRespondWithBusy$1.run(StartBuildOrRespondWithBusy.java:50)
at org.gradle.launcher.daemon.server.DaemonStateCoordinator$1.run(DaemonStateCoordinator.java:295)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:745)

Answer 17 · 2018-05-29T07:23:03.000Z

When I do ./gradlew desktop:dist

I get:
Starting a Gradle Daemon, 1 incompatible and 3 stopped Daemons could not be reused, use --status for details
Configuration on demand is an incubating feature.

Configure project :
WARNING: Configuration 'compile' is obsolete and has been replaced with 'implementation'.
It will be removed at the end of 2018
Using already downloaded SDK: C:\Users\Simon.Burfield.moe\moe-sdk-1.4.1

Configure project :core
'kapt.generateStubs' is not used by the 'kotlin-kapt' plugin
'kapt.generateStubs' is not used by the 'kotlin-kapt' plugin
'kapt.generateStubs' is not used by the 'kotlin-kapt' plugin
'kapt.generateStubs' is not used by the 'kotlin-kapt' plugin

FAILURE: Build failed with an exception.

What went wrong:
java.lang.NullPointerException (no error message)

Answer 18 · 2018-07-14T11:31:49.000Z

I'll repost the solution of @adam4813 that is mentioned in #4698 because it also took me a while to stumble upon it.

I changed the Before Launch to Build Project instead of Build when using an Application configuration. To do this, in the Before launch box at the bottom of the Run/Debug Configuration dialog, for an Application configuration, click the green + and add Build Project and then select the Build line and click the red - to remove it.

Answer 19 · 2018-07-24T09:44:11.000Z

I'm struggling with the same error, but for iOS target (RoboVM).

Answer 20 · 2018-07-26T15:07:55.000Z

Exception in thread "main" java.lang.NoClassDefFoundError: ru/serdjuk/m3l/game/M3lMain
at ru.serdjuk.m3l.game.desktop.DesktopLauncher.main(DesktopLauncher.java:13)
Caused by: java.lang.ClassNotFoundException: ru.serdjuk.m3l.game.M3lMain
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 1 more

result of SHIFT+10 (Desktop)
gradlew desktop:run - is working, but it's uncomfortable

I moved the contents of the old project's root folder to a new project without updating the gradle, but the error remained
how to fix this error ?

in project I use the kotlin and coroutines kotlin in the project

...in path: core/build/classes not created main class

AS 3.1.3
com.android.tools.build:gradle:3.1.0
gradle-4.6-bin.zip

Answer 21 · 2018-07-26T15:18:05.000Z

Please provide the full instructions to reproduce your issue, from setting up a new project, what configurations you are choosing and how you are importing. If you can reproduce with a new project please open a new issue and we will resolve it.

I have just tried a new project, following the official instructions and cannot reproduce your error given your steps.

Answer 22 · 2018-07-26T16:17:25.000Z

The problem was in Convert Java file to Kotlin file
When the main class in the project :core: is the Kotlin file, this error occurs.

DesctopLauncher.class does not see a GdxGame.kt

Answer 23 · 2018-11-15T06:50:40.000Z

I had the same Problem.

I just created a new gradle configuration named Desktop, set the Gradle project to the project's path and in Tasks I entered:

desktop:run

Answer 24 · 2018-12-07T13:17:32.000Z

@burf2000 > I was getting your last error with gradle 4.5.1 and google's gradle android plugin 3.1.0.

Updating to gradle 4.6 and gradle android 3.2.0 fixed the issue, as suggested in https://issuetracker.google.com/issues/77605097.

Answer 25 · 2019-02-06T12:37:48.000Z

Still having thes issue, any fix?

Answer 26 · 2023-11-28T07:08:20.000Z

Any fix for gradle 8.4 or 7.5.1?

Answer 27 · 2023-11-28T09:11:09.000Z

Any fix for gradle 8.4 or 7.5.1?

@ImMedved I kinda doubt this is the same bug, 6 years later, with no reports of the issue occurring for almost 5 years. Can you tell us what you're trying (what IDE you use, what version is it, what are you clicking...) and any error/warning output that you can find when it isn't working? Usually this sort of thing is resolved by invalidating caches and importing the project again. In some cases you may find closing IDEA/AS, deleting or moving the .idea and/or .gradle folders (both with a dot at the start!) and reopening the project can help. If the error messages aren't the same or similar to the initial post, this may belong in a new issue, where hopefully people can take a fresh look. This sort of error happens pretty often with IDEs in general, and isn't specific to libGDX.