java - Cannot solve Android Error:Execution failed for task ':app:compileDebugJavaWithJavac' -

still having following error:

 error:execution failed task ':app:compiledebugjavawithjavac'.  compilation failed; see compiler error output details. 

even after trying solutions on stackoverflow, still stuck on how solve issue. guide me through how solve this?

when sync project works fine when run app crash. past month everthing working fine , crashed.

targeting api 22 since creativesdk work fine api based on blog have came across site adobe creative sdk.

full error message:

:app:compiledebugjavawithjavac - not incremental (e.g. outputs have changed, no previous execution, etc.). exception has occurred in compiler (1.8.0_60). please file bug @ java bug database (http://bugreport.java.com/bugreport/) after checking database duplicates. include program , following diagnostic in report.  thank you. java.lang.classformaterror: illegal utf8 string in constant pool in class file com/sun/tools/javac/tree/doctreemaker @ java.lang.classloader.defineclass1(native method) @ java.lang.classloader.defineclass(classloader.java:760)   @ java.security.secureclassloader.defineclass(secureclassloader.java:142) @ java.net.urlclassloader.defineclass(urlclassloader.java:467) @ java.net.urlclassloader.access$100(urlclassloader.java:73) @ java.net.urlclassloader$1.run(urlclassloader.java:368) @ java.net.urlclassloader$1.run(urlclassloader.java:362) @ java.security.accesscontroller.doprivileged(native method) @ java.net.urlclassloader.findclass(urlclassloader.java:361) @ java.lang.classloader.loadclass(classloader.java:424) @ java.lang.classloader.loadclass(classloader.java:357) @ com.sun.tools.javac.parser.parserfactory.<init>(parserfactory.java:73) @ com.sun.tools.javac.parser.parserfactory.instance(parserfactory.java:54) @ com.sun.tools.javac.main.javacompiler.<init>(javacompiler.java:356) @ com.sun.tools.javac.main.javacompiler.instance(javacompiler.java:88) @ com.sun.tools.javac.main.main.compile(main.java:485) @ com.sun.tools.javac.api.javactaskimpl.docall(javactaskimpl.java:129) @ com.sun.tools.javac.api.javactaskimpl.call(javactaskimpl.java:138) @ org.gradle.api.internal.tasks.compile.jdkjavacompiler.execute(jdkjavacompiler.java:45) @ org.gradle.api.internal.tasks.compile.jdkjavacompiler.execute(jdkjavacompiler.java:33) @ org.gradle.api.internal.tasks.compile.daemon.compilerdaemonserver.execute(compilerdaemonserver.java:53) @ sun.reflect.nativemethodaccessorimpl.invoke0(native method) @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:62) @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43) @ java.lang.reflect.method.invoke(method.java:497) @ org.gradle.messaging.dispatch.reflectiondispatch.dispatch(reflectiondispatch.java:35) @ org.gradle.messaging.dispatch.reflectiondispatch.dispatch(reflectiondispatch.java:24) @ org.gradle.messaging.remote.internal.hub.messagehub$handler.run(messagehub.java:360) @ org.gradle.internal.concurrent.executorpolicy$catchandrecordfailures.onexecute(executorpolicy.java:54) @ org.gradle.internal.concurrent.stoppableexecutorimpl$1.run(stoppableexecutorimpl.java:40) @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142) @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617) @ java.lang.thread.run(thread.java:745):app:compiledebugjavawithjavac failed error:execution failed task ':app:compiledebugjavawithjavac' compilation failed; see compiler error output details. 

my build.gradle(app):

apply plugin: 'com.android.application'  buildscript { repositories {     jcenter() } dependencies {     classpath 'com.android.tools.build:gradle:1.5.0' } }  allprojects { apply plugin: 'maven'  tasks.withtype(javacompile) {     options.fork = true      options.incremental = true } repositories {     mavencentral()     jcenter()      maven {         url "${project.rootdir}/creativesdk-repo/release"  //add correct location of creativesdk library files     } } }  android { compilesdkversion 22 buildtoolsversion "22.0.1"  defaultconfig {     applicationid "com.example.yo.mophoto"     minsdkversion 21     targetsdkversion 22     versioncode 1     versionname "1.0"     multidexenabled true     renderscripttargetapi 22     renderscriptsupportmodeenabled true } signingconfigs {     release {         storefile file('release.key')         storepassword '123456'         keyalias 'alias'         keypassword '123456'     } } compileoptions {     sourcecompatibility javaversion.version_1_7     targetcompatibility javaversion.version_1_7 } sourcesets {     main {         setroot 'src/main'     }      debug {         setroot 'src/debug'     } } buildtypes {     release {         signingconfig signingconfigs.release         minifyenabled false         proguardfiles getdefaultproguardfile('proguard-android.txt'), 'proguard-rules.pro'     }     debug {         debuggable true         minifyenabled false     } } packagingoptions {     exclude 'meta-inf/notice.txt'     exclude 'meta-inf/license.txt' } dexoptions {     jumbomode true     incremental true     predexlibraries false     javamaxheapsize "4g" } }  dependencies { compile filetree(dir: 'libs', include: ['*.jar']) testcompile 'junit:junit:4.12' compile 'com.android.support:appcompat-v7:22.2.1' compile 'com.android.support:design:22.2.1' compile 'com.android.support:multidex:1.0.1' compile 'com.adobe.creativesdk:image:4.0.0' compile 'com.android.support:recyclerview-v7:22.0.0' compile 'com.android.support:cardview-v7:22.2.1' compile 'org.lucasr.twowayview:twowayview:0.1.4' compile files('libs/universal-image-loader-1.9.0.jar') compile 'com.oguzdev:circularfloatingactionmenu:1.0.2' } 

seems using java 1.8. and

compileoptions { sourcecompatibility javaversion.version_1_7 targetcompatibility javaversion.version_1_7 }

i suggest try java 1.7. i'm not sure error looks this not able parse text.

also suggest an exception has occurred in compiler (1.8.0_60). please file bug @ java bug database.