Multiple support-v4 jars causing issues

I've exported a project from eclipse - but now I cannot add the support library to my project compile 'com.android.support:support-v4:21.0.0' beause the libraries that are used in this project have their own copy of the same library(but they have it in a jar file in their libs folder). Now when I added compile 'com.android.support:support-v4:21.0.0' I get this issue:

Error:Execution failed for task ':Athan:packageAllDebugClassesForMultiDex'.
> java.util.zip.ZipException: duplicate entry: android/support/annotation/IntDef.class

Can someone help me to resolve this issue?

This is my app build.gradle

apply plugin: 'android'


dependencies {


    compile fileTree(dir: 'libs', include: '*.jar')
    compile project(':google-play-services_lib')
    compile project(':library_viewpager')
    compile project(':sliding_library')
    compile project(':android-support-v7-appcompat')
    compile 'com.android.support:multidex:1.0.0'
    compile 'com.android.support:support-v4:21.0.0'
}

android {
    compileSdkVersion 21
    buildToolsVersion "22.0.1"

    dexOptions {
        preDexLibraries = false
    }

    defaultConfig {
        multiDexEnabled true
    }

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')

        // Move the build types to build-types/<type>
        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
        // This moves them out of them default location under src/<type>/... which would
        // conflict with src/ being used by the main source set.
        // Adding new build types or product flavors should be accompanied
        // by a similar customization.
        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')
    }
}

Add support jar only in library projects. No need to add it in main project and keep in mind all support library should be of same version