AndroidStudio升級到3.1後編譯報錯：The SourceSet ‘instrumentTest’ is not recognized by the Android Gradle Plugin.

專案中 gradle 配置

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

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原因

是這裡出問題了 instrumentTest.setRoot(‘tests’) ，你可能在升級 Android Studio 時更新了專案的 gradle 配置，這裡的配置中 instrumentTest 已被棄用，不適用於現在的 gradle 版本。

解決辦法

用 androidTest 替換 instrumentTest，編譯執行即可。