Cant compile my extension

I am getting this error while compiling my extension

$ ant extensions
Picked up _JAVA_OPTIONS: -Xmx1024M
Buildfile: C:\appinventor-sources\appinventor\build.xml

extensions:

clean:
   [delete] Deleting directory C:\appinventor-sources\appinventor\build\components
   [delete] Deleting directory C:\appinventor-sources\appinventor\components\build
   [delete] Deleting directory C:\appinventor-sources\appinventor\components\reports

common_CommonVersion:

init:

CommonVersion:

init:
    [mkdir] Created dir: C:\appinventor-sources\appinventor\build\components
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\build
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\build\classes
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\reports
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\reports\raw
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\reports\html

HtmlEntities:
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\build\classes\HtmlEntities
    [javac] Compiling 1 source file to C:\appinventor-sources\appinventor\components\build\classes\HtmlEntities
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 7
    [javac] warning: [options] source value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] target value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] To suppress warnings about obsolete options, use -Xlint:-options.
    [javac] 4 warnings
      [jar] Building jar: C:\appinventor-sources\appinventor\components\build\HtmlEntities.jar

Barcode:
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\build\classes\Barcode
    [javac] Compiling 40 source files to C:\appinventor-sources\appinventor\components\build\classes\Barcode
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 7
    [javac] warning: [options] source value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] target value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] To suppress warnings about obsolete options, use -Xlint:-options.
    [javac] Note: Some input files use or override a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 4 warnings
      [jar] Building jar: C:\appinventor-sources\appinventor\build\components\deps\Barcode.jar

CopyComponentLibraries:
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps\armeabi-v7a
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps\arm64-v8a
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps\x86_64
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 59 files to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 2 files to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps
     [copy] Copying 1 file to C:\appinventor-sources\appinventor\build\components\deps

common_CommonUtils:

init:

CommonUtils:

CommonConstants:
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\build\classes\CommonConstants
    [javac] Compiling 7 source files to C:\appinventor-sources\appinventor\components\build\classes\CommonConstants
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 7
    [javac] warning: [options] source value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] target value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] To suppress warnings about obsolete options, use -Xlint:-options.
    [javac] 4 warnings
    [javac] Creating empty C:\appinventor-sources\appinventor\components\build\classes\CommonConstants\com\google\appinventor\components\common\package-info.class
      [jar] Building jar: C:\appinventor-sources\appinventor\build\components\CommonConstants.jar
      [jar] Building jar: C:\appinventor-sources\appinventor\build\components\CommonConstants-gwt.jar

AnnotationProcessors:
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\build\classes\AnnotationProcessors
    [javac] Compiling 41 source files to C:\appinventor-sources\appinventor\components\build\classes\AnnotationProcessors
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 7
    [javac] warning: [options] source value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] target value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] To suppress warnings about obsolete options, use -Xlint:-options.
    [javac] Note: C:\appinventor-sources\appinventor\components\src\com\google\appinventor\components\scripts\ComponentProcessor.java uses or overrides a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: C:\appinventor-sources\appinventor\components\src\com\google\appinventor\components\scripts\ComponentProcessor.java uses unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 4 warnings
    [javac] Creating empty C:\appinventor-sources\appinventor\components\build\classes\AnnotationProcessors\com\google\appinventor\components\annotations\androidmanifest\package-info.class
    [javac] Creating empty C:\appinventor-sources\appinventor\components\build\classes\AnnotationProcessors\com\google\appinventor\components\annotations\package-info.class
    [javac] Creating empty C:\appinventor-sources\appinventor\components\build\classes\AnnotationProcessors\com\google\appinventor\components\scripts\package-info.class
     [copy] Copying 22 files to C:\appinventor-sources\appinventor\components\build\classes\AnnotationProcessors
      [jar] Building jar: C:\appinventor-sources\appinventor\components\build\AnnotationProcessors.jar

AndroidRuntime.uptodate:

AndroidRuntime:
    [mkdir] Created dir: C:\appinventor-sources\appinventor\components\build\classes\AndroidRuntime
    [javac] Compiling 294 source files to C:\appinventor-sources\appinventor\components\build\classes\AndroidRuntime
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 7
    [javac] warning: [options] source value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] target value 7 is obsolete and will be removed in a future release
    [javac] warning: [options] To suppress warnings about obsolete options, use -Xlint:-options.
    [javac] warning: In component UltimateMenu, event OnMenuItemClick is missing a description.
    [javac] warning: In component UltimateMenu, method Create is missing a description.
    [javac] warning: In component UltimateMenu, method AddItem is missing a description.
    [javac] warning: In component UltimateMenu, method ShowMenu is missing a description.
    [javac] warning: In component UltimateMenu, method ShowMenuAtLocation is missing a description.
    [javac] warning: In component UltimateMenu, method DismissMenu is missing a description.
    [javac] warning: In component UltimateMenu, method IsMenuShowing is missing a description.
    [javac] Note: Some input files use or override a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] 11 warnings
    [javac]
    [javac]
    [javac] An annotation processor threw an uncaught exception.
    [javac] Consult the following stack trace for details.
    [javac] java.lang.IllegalArgumentException: Cannot convert Java type 'com.skydoves.powermenu.MenuAnimation' to Yail type
    [javac]     at com.google.appinventor.components.scripts.ComponentProcessor.javaTypeToYailType(ComponentProcessor.java:2068)
    [javac]     at com.google.appinventor.components.scripts.ComponentDescriptorGenerator.outputBlockProperty(ComponentDescriptorGenerator.java:302)
    [javac]     at com.google.appinventor.components.scripts.ComponentDescriptorGenerator.outputComponent(ComponentDescriptorGenerator.java:146)
    [javac]     at com.google.appinventor.components.scripts.ComponentDescriptorGenerator.outputResults(ComponentDescriptorGenerator.java:388)
    [javac]     at com.google.appinventor.components.scripts.ComponentProcessor.process(ComponentProcessor.java:1103)
    [javac]     at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:1025)
    [javac]     at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:940)
    [javac]     at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1269)
    [javac]     at jdk.compiler/com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1383)
    [javac]     at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1261)
    [javac]     at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:935)
    [javac]     at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
    [javac]     at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
    [javac]     at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:59)
    [javac]     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [javac]     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    [javac]     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [javac]     at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    [javac]     at org.apache.tools.ant.taskdefs.compilers.Javac13.execute(Javac13.java:58)
    [javac]     at org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1395)
    [javac]     at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:1121)
    [javac]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
    [javac]     at jdk.internal.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    [javac]     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [javac]     at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    [javac]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    [javac]     at org.apache.tools.ant.Task.perform(Task.java:348)
    [javac]     at org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:68)
    [javac]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
    [javac]     at jdk.internal.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    [javac]     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [javac]     at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    [javac]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    [javac]     at org.apache.tools.ant.Task.perform(Task.java:348)
    [javac]     at org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:402)
    [javac]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
    [javac]     at jdk.internal.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    [javac]     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [javac]     at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    [javac]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    [javac]     at org.apache.tools.ant.Task.perform(Task.java:348)
    [javac]     at org.apache.tools.ant.Target.execute(Target.java:435)
    [javac]     at org.apache.tools.ant.Target.performTasks(Target.java:456)
    [javac]     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405)
    [javac]     at org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
    [javac]     at org.apache.tools.ant.Project.executeTargets(Project.java:1260)
    [javac]     at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:441)
    [javac]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:293)
    [javac]     at jdk.internal.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    [javac]     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    [javac]     at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    [javac]     at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
    [javac]     at org.apache.tools.ant.Task.perform(Task.java:348)
    [javac]     at org.apache.tools.ant.Target.execute(Target.java:435)
    [javac]     at org.apache.tools.ant.Target.performTasks(Target.java:456)
    [javac]     at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1405)
    [javac]     at org.apache.tools.ant.Project.executeTarget(Project.java:1376)
    [javac]     at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
    [javac]     at org.apache.tools.ant.Project.executeTargets(Project.java:1260)
    [javac]     at org.apache.tools.ant.Main.runBuild(Main.java:857)
    [javac]     at org.apache.tools.ant.Main.startAnt(Main.java:236)
    [javac]     at org.apache.tools.ant.launch.Launcher.run(Launcher.java:287)
    [javac]     at org.apache.tools.ant.launch.Launcher.main(Launcher.java:113)

BUILD FAILED
C:\appinventor-sources\appinventor\build.xml:46: The following error occurred while executing this line:
C:\appinventor-sources\appinventor\components\build.xml:223: The following error occurred while executing this line:
C:\appinventor-sources\appinventor\build-common.xml:125: Compile failed; see the compiler error output for details.

Total time: 8 seconds

Can anyone tell what is causing error...

You're returning or taking MenuAnimation somewhere which is not possible.

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