与Android Studio不兼容的魔术值

Question

I'm working with Android Studio 1.2.2 and when I want to sync my project, it shows:

"Error:Incompatible magic value 2586042913 in class file asLocalRepo1_9h0wx5r1a0kgvu546dwv1hdh8"

Each time I try to sync again the number of the repo increases (asLocalRepo2_1dhgml..., asLocalRepo3_gfd5..., ...)

I know that when a magic value is incompatible it means the file is corrupted, but I don't know which file.

Answer 1

I had the exact same problem and this fixed it right away

answer form this question: How to set -source 1.7 in Android Studio and Gradle

I added this to build.gradle

compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }

So now i have this:

android {
    compileSdkVersion 19
    buildToolsVersion "19.0.0"

    defaultConfig {
        minSdkVersion 7
        targetSdkVersion 19
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }
}