Out of memory error: Java heap memory on Android Studio

Issue

How do I fix java.lang.OutOfMemoryError: Java heap space when compiling my Android project?

I get this after I upgraded to version 1 of Android Studio. But, I don't think this is the problem. Most likely when I start upgrading my app to SDK 21 (before this was SDK 20). But I wasn't so sure either.

I've googled around for some fix, but couldn't find one that works. Most of the fix are for Eclipse IDE.

This is the full logcat error that I get when compiling:

warning: Ignoring InnerClasses attribute for an anonymous inner class
(net.lingala.zip4j.unzip.Unzip$1) that doesn't come with an
associated EnclosingMethod attribute. This class was probably produced by a
compiler that did not target the modern .class file format. The recommended
solution is to recompile the class from source, using an up-to-date compiler
and without specifying any "-target" type options. The consequence of ignoring
this warning is that reflective operations on this class will incorrectly
indicate that it is *not* an inner class.
warning: Ignoring InnerClasses attribute for an anonymous inner class
(net.lingala.zip4j.unzip.Unzip$2) that doesn't come with an
associated EnclosingMethod attribute. This class was probably produced by a
compiler that did not target the modern .class file format. The recommended
solution is to recompile the class from source, using an up-to-date compiler
and without specifying any "-target" type options. The consequence of ignoring
this warning is that reflective operations on this class will incorrectly
indicate that it is *not* an inner class.
warning: Ignoring InnerClasses attribute for an anonymous inner class
(net.lingala.zip4j.util.ArchiveMaintainer$1) that doesn't come with an
associated EnclosingMethod attribute. This class was probably produced by a
compiler that did not target the modern .class file format. The recommended
solution is to recompile the class from source, using an up-to-date compiler
and without specifying any "-target" type options. The consequence of ignoring
this warning is that reflective operations on this class will incorrectly
indicate that it is *not* an inner class.
warning: Ignoring InnerClasses attribute for an anonymous inner class
(net.lingala.zip4j.util.ArchiveMaintainer$2) that doesn't come with an
associated EnclosingMethod attribute. This class was probably produced by a
compiler that did not target the modern .class file format. The recommended
solution is to recompile the class from source, using an up-to-date compiler
and without specifying any "-target" type options. The consequence of ignoring
this warning is that reflective operations on this class will incorrectly
indicate that it is *not* an inner class.
warning: Ignoring InnerClasses attribute for an anonymous inner class
(net.lingala.zip4j.zip.ZipEngine$1) that doesn't come with an
associated EnclosingMethod attribute. This class was probably produced by a
compiler that did not target the modern .class file format. The recommended
solution is to recompile the class from source, using an up-to-date compiler
and without specifying any "-target" type options. The consequence of ignoring
this warning is that reflective operations on this class will incorrectly
indicate that it is *not* an inner class.

UNEXPECTED TOP-LEVEL ERROR:
java.lang.OutOfMemoryError: Java heap space
    at com.android.dx.rop.code.RegisterSpec$ForComparison.toRegisterSpec(RegisterSpec.java:642)
    at com.android.dx.rop.code.RegisterSpec.intern(RegisterSpec.java:73)
    at com.android.dx.rop.code.RegisterSpec.make(RegisterSpec.java:90)
    at com.android.dx.cf.code.RopperMachine.run(RopperMachine.java:323)
    at com.android.dx.cf.code.Simulator$SimVisitor.visitLocal(Simulator.java:612)
    at com.android.dx.cf.code.BytecodeArray.parseInstruction(BytecodeArray.java:412)
    at com.android.dx.cf.code.Simulator.simulate(Simulator.java:94)
    at com.android.dx.cf.code.Ropper.processBlock(Ropper.java:787)
    at com.android.dx.cf.code.Ropper.doit(Ropper.java:742)
    at com.android.dx.cf.code.Ropper.convert(Ropper.java:349)
    at com.android.dx.dex.cf.CfTranslator.processMethods(CfTranslator.java:280)
    at com.android.dx.dex.cf.CfTranslator.translate0(CfTranslator.java:137)
    at com.android.dx.dex.cf.CfTranslator.translate(CfTranslator.java:93)
    at com.android.dx.command.dexer.Main.processClass(Main.java:729)
    at com.android.dx.command.dexer.Main.processFileBytes(Main.java:673)
    at com.android.dx.command.dexer.Main.access$300(Main.java:82)
    at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:602)
    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:632)
    at com.android.dx.command.dexer.Main.processAllFiles(Main.java:505)
    at com.android.dx.command.dexer.Main.runMultiDex(Main.java:332)
    at com.android.dx.command.dexer.Main.run(Main.java:243)
    at com.android.dx.command.dexer.Main.main(Main.java:214)
    at com.android.dx.command.Main.main(Main.java:106)

 FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:dexDebug'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
    C:\Users\sdfasd\android-sdks\build-tools\21.1.1\dx.bat --dex --no-optimize --multi-dex --main-dex-list C:\Users\asdfasdf\workspace\Baucar\app\build\intermediates\multi-dex\debug\maindexlist.txt --output C:\Users\asdfasdf\workspace\Baucar\app\build\intermediates\dex\debug --input-list=C:\Users\asdfasdf\workspace\Baucar\app\build\intermediates\tmp\dex\debug\inputList.txt
Error Code:
    3
Output:
    warning: Ignoring InnerClasses attribute for an anonymous inner class
    (net.lingala.zip4j.unzip.Unzip$1) that doesn't come with an
    associated EnclosingMethod attribute. This class was probably produced by a
    compiler that did not target the modern .class file format. The recommended
    solution is to recompile the class from source, using an up-to-date compiler
    and without specifying any "-target" type options. The consequence of ignoring
    this warning is that reflective operations on this class will incorrectly
    indicate that it is *not* an inner class.
    warning: Ignoring InnerClasses attribute for an anonymous inner class
    (net.lingala.zip4j.unzip.Unzip$2) that doesn't come with an
    associated EnclosingMethod attribute. This class was probably produced by a
    compiler that did not target the modern .class file format. The recommended
    solution is to recompile the class from source, using an up-to-date compiler
    and without specifying any "-target" type options. The consequence of ignoring
    this warning is that reflective operations on this class will incorrectly
    indicate that it is *not* an inner class.
    warning: Ignoring InnerClasses attribute for an anonymous inner class
    (net.lingala.zip4j.util.ArchiveMaintainer$1) that doesn't come with an
    associated EnclosingMethod attribute. This class was probably produced by a
    compiler that did not target the modern .class file format. The recommended
    solution is to recompile the class from source, using an up-to-date compiler
    and without specifying any "-target" type options. The consequence of ignoring
    this warning is that reflective operations on this class will incorrectly
    indicate that it is *not* an inner class.
    warning: Ignoring InnerClasses attribute for an anonymous inner class
    (net.lingala.zip4j.util.ArchiveMaintainer$2) that doesn't come with an
    associated EnclosingMethod attribute. This class was probably produced by a
    compiler that did not target the modern .class file format. The recommended
    solution is to recompile the class from source, using an up-to-date compiler
    and without specifying any "-target" type options. The consequence of ignoring
    this warning is that reflective operations on this class will incorrectly
    indicate that it is *not* an inner class.
    warning: Ignoring InnerClasses attribute for an anonymous inner class
    (net.lingala.zip4j.zip.ZipEngine$1) that doesn't come with an
    associated EnclosingMethod attribute. This class was probably produced by a
    compiler that did not target the modern .class file format. The recommended
    solution is to recompile the class from source, using an up-to-date compiler
    and without specifying any "-target" type options. The consequence of ignoring
    this warning is that reflective operations on this class will incorrectly
    indicate that it is *not* an inner class.
    
    UNEXPECTED TOP-LEVEL ERROR:
    java.lang.OutOfMemoryError: Java heap space
        at com.android.dx.rop.code.RegisterSpec$ForComparison.toRegisterSpec(RegisterSpec.java:642)
        at com.android.dx.rop.code.RegisterSpec.intern(RegisterSpec.java:73)
        at com.android.dx.rop.code.RegisterSpec.make(RegisterSpec.java:90)
        at com.android.dx.cf.code.RopperMachine.run(RopperMachine.java:323)
        at com.android.dx.cf.code.Simulator$SimVisitor.visitLocal(Simulator.java:612)
        at com.android.dx.cf.code.BytecodeArray.parseInstruction(BytecodeArray.java:412)
        at com.android.dx.cf.code.Simulator.simulate(Simulator.java:94)
        at com.android.dx.cf.code.Ropper.processBlock(Ropper.java:787)
        at com.android.dx.cf.code.Ropper.doit(Ropper.java:742)
        at com.android.dx.cf.code.Ropper.convert(Ropper.java:349)
        at com.android.dx.dex.cf.CfTranslator.processMethods(CfTranslator.java:280)
        at com.android.dx.dex.cf.CfTranslator.translate0(CfTranslator.java:137)
        at com.android.dx.dex.cf.CfTranslator.translate(CfTranslator.java:93)
        at com.android.dx.command.dexer.Main.processClass(Main.java:729)
        at com.android.dx.command.dexer.Main.processFileBytes(Main.java:673)
        at com.android.dx.command.dexer.Main.access$300(Main.java:82)
        at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:602)
        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:632)
        at com.android.dx.command.dexer.Main.processAllFiles(Main.java:505)
        at com.android.dx.command.dexer.Main.runMultiDex(Main.java:332)
        at com.android.dx.command.dexer.Main.run(Main.java:243)
        at com.android.dx.command.dexer.Main.main(Main.java:214)
        at com.android.dx.command.Main.main(Main.java:106)

Is it because of one jar library I used (zip4j)? I did try to remove it, but the OOM error still occurs. Any idea how to fix this?

---

Edit:

I've also edited gradlew file to increase the -Xmx size.

GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\" \"-Xmx2048M \"-XX:MaxPermSize=512M\" \"-XX:ReservedCodeCacheSize=512M\""

Nothing changes.

---

Edit 2:

Also did this fix but couldn't help it too:

Try the following:

Ctrl + Alt + S -> Compiler -> Gradle

InVM Options field write:

-Xmx2048m -XX:MaxPermSize=512m

Solution

I've finally solved it by limiting the Google Play service in gradle dependency.

The problem however was caused by the Google Play service, and by simply change it to a specific library, it is now solved.

 com.google.android.gms:play-services-base:6.5.87

UPDATE

More info on android guides

Answered By - emen