java - Execution failure in Android app for task ':app:dexDebug' -

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i new android studio , making simple weather app. wrote code still getting error:

execution failed task ':app:dexdebug'.

com.android.ide.common.process.processexception: org.gradle.process.internal.execexception: process 'command '/usr/lib/jvm/java-7-openjdk-amd64/bin/java'' finished non-zero exit value 2

here build.gradle:

apply plugin: 'com.android.application'

android { compilesdkversion 22 buildtoolsversion "22.0.1"  defaultconfig {     applicationid "com.example.aseem.sunshine.app"     minsdkversion 10     targetsdkversion 22     versioncode 1     versionname "1.0" } buildtypes {     release {         minifyenabled false         proguardfiles getdefaultproguardfile('proguard-android.txt'),   'proguard-rules.pro'     } }   }  dependencies { compile filetree(dir: 'libs', include: ['*.jar']) compile files('android-support-v7-appcompat.jar') compile 'com.android.support:appcompat-v7:+'  }

can me solve error , program run?

com.android.support:appcompat-v7 library being included twice in project. remove line compile files('android-support-v7-appcompat.jar') build.gradle. can remove .jar project.


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