Butterknife and InstrumentationTestSuite

[Pedlar]

Having an issues with Butterknife using instrumentationTestSuites. It's failing to find the butterknife.internal.InjectViewProcessor

W/ClassPathPackageInfoSource﹕ Cannot load class. Make sure it is in your apk. Class name: 'butterknife.internal.InjectViewProcessor'. Message: butterknife.internal.InjectViewProcessor
java.lang.ClassNotFoundException: butterknife.internal.InjectViewProcessor

dependencies {
        compile 'com.jakewharton:butterknife:4.0.1'
        instrumentTestCompile 'com.jakewharton.espresso:espresso:1.1-r1'
}

[imminent]

Should InjectViewProcessor only be needed at compile time, meaning it gets added with the "compile" dependency and then used to create the apk. The instrument test then uses that apk. It sounds like the instrumentation test pass is trying to perform annotation processing as well, and sees the InjectViewProcessor registered, but it's not around because you don't have it in a "instrumentTestCompile" dependency.

[JakeWharton]

Is there a stacktrace for this or is that the only message? Nothing should be using the annotation processor itself at runtime.

[thaussma]

I'm having the same problem. Here's my Stacktrace:

W/dalvikvm﹕ Unable to resolve superclass of Lbutterknife/internal/InjectViewProcessor; (2445)
W/dalvikvm﹕ Link of class 'Lbutterknife/internal/InjectViewProcessor;' failed
W/dalvikvm﹕ Unable to resolve superclass of Lbutterknife/internal/InjectViewProcessor; (2558)
W/dalvikvm﹕ Link of class 'Lbutterknife/internal/InjectViewProcessor;' failed
W/ClassPathPackageInfoSource﹕ Cannot load class. Make sure it is in your apk. Class name: 'butterknife.internal.InjectViewProcessor'. Message: butterknife.internal.InjectViewProcessor
    java.lang.ClassNotFoundException: butterknife.internal.InjectViewProcessor
            at java.lang.Class.classForName(Native Method)
            at java.lang.Class.forName(Class.java:217)
            at android.test.ClassPathPackageInfoSource.createPackageInfo(ClassPathPackageInfoSource.java:88)
            at android.test.ClassPathPackageInfoSource.access$000(ClassPathPackageInfoSource.java:39)
            at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:50)
            at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:47)
            at android.test.SimpleCache.get(SimpleCache.java:31)
            at android.test.ClassPathPackageInfoSource.getPackageInfo(ClassPathPackageInfoSource.java:72)
            at android.test.ClassPathPackageInfo.getSubpackages(ClassPathPackageInfo.java:48)
            at android.test.ClassPathPackageInfo.addTopLevelClassesTo(ClassPathPackageInfo.java:61)
            at android.test.ClassPathPackageInfo.getTopLevelClassesRecursive(ClassPathPackageInfo.java:55)
            at android.test.suitebuilder.TestGrouping.testCaseClassesInPackage(TestGrouping.java:156)
            at android.test.suitebuilder.TestGrouping.addPackagesRecursive(TestGrouping.java:117)
            at android.test.suitebuilder.TestSuiteBuilder.includePackages(TestSuiteBuilder.java:102)
            at android.test.InstrumentationTestRunner.onCreate(InstrumentationTestRunner.java:366)
            at com.google.android.apps.common.testing.testrunner.GoogleInstrumentationTestRunner.onCreate(GoogleInstrumentationTestRunner.java:114)
            at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4142)
            at android.app.ActivityThread.access$1300(ActivityThread.java:130)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1255)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4745)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.NoClassDefFoundError: butterknife/internal/InjectViewProcessor
            at java.lang.Class.classForName(Native Method)
            at java.lang.Class.forName(Class.java:217)
            at android.test.ClassPathPackageInfoSource.createPackageInfo(ClassPathPackageInfoSource.java:88)
            at android.test.ClassPathPackageInfoSource.access$000(ClassPathPackageInfoSource.java:39)
            at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:50)
            at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:47)
            at android.test.SimpleCache.get(SimpleCache.java:31)
            at android.test.ClassPathPackageInfoSource.getPackageInfo(ClassPathPackageInfoSource.java:72)
            at android.test.ClassPathPackageInfo.getSubpackages(ClassPathPackageInfo.java:48)
            at android.test.ClassPathPackageInfo.addTopLevelClassesTo(ClassPathPackageInfo.java:61)
            at android.test.ClassPathPackageInfo.getTopLevelClassesRecursive(ClassPathPackageInfo.java:55)
            at android.test.suitebuilder.TestGrouping.testCaseClassesInPackage(TestGrouping.java:156)
            at android.test.suitebuilder.TestGrouping.addPackagesRecursive(TestGrouping.java:117)
            at android.test.suitebuilder.TestSuiteBuilder.includePackages(TestSuiteBuilder.java:102)
            at android.test.InstrumentationTestRunner.onCreate(InstrumentationTestRunner.java:366)
            at com.google.android.apps.common.testing.testrunner.GoogleInstrumentationTestRunner.onCreate(GoogleInstrumentationTestRunner.java:114)
            at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4142)
            at android.app.ActivityThread.access$1300(ActivityThread.java:130)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1255)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4745)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.ClassNotFoundException: butterknife.internal.InjectViewProcessor
            at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
            at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
            at java.lang.Class.classForName(Native Method)
            at java.lang.Class.forName(Class.java:217)
            at android.test.ClassPathPackageInfoSource.createPackageInfo(ClassPathPackageInfoSource.java:88)
            at android.test.ClassPathPackageInfoSource.access$000(ClassPathPackageInfoSource.java:39)
            at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:50)
            at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:47)
            at android.test.SimpleCache.get(SimpleCache.java:31)
            at android.test.ClassPathPackageInfoSource.getPackageInfo(ClassPathPackageInfoSource.java:72)
            at android.test.ClassPathPackageInfo.getSubpackages(ClassPathPackageInfo.java:48)
            at android.test.ClassPathPackageInfo.addTopLevelClassesTo(ClassPathPackageInfo.java:61)
            at android.test.ClassPathPackageInfo.getTopLevelClassesRecursive(ClassPathPackageInfo.java:55)
            at android.test.suitebuilder.TestGrouping.testCaseClassesInPackage(TestGrouping.java:156)
            at android.test.suitebuilder.TestGrouping.addPackagesRecursive(TestGrouping.java:117)
            at android.test.suitebuilder.TestSuiteBuilder.includePackages(TestSuiteBuilder.java:102)
            at android.test.InstrumentationTestRunner.onCreate(InstrumentationTestRunner.java:366)
            at com.google.android.apps.common.testing.testrunner.GoogleInstrumentationTestRunner.onCreate(GoogleInstrumentationTestRunner.java:114)
            at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4142)
            at android.app.ActivityThread.access$1300(ActivityThread.java:130)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1255)
            at android.os.Handler.dispatchMessage(Handler.java:99)
            at android.os.Looper.loop(Looper.java:137)
            at android.app.ActivityThread.main(ActivityThread.java:4745)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
            at dalvik.system.NativeStart.main(Native Method)    

[JakeWharton]

Now that helps and makes sense. Thanks.

[JakeWharton]

As a temporary workaround, you can strip everything in butterknife.internal.* via ProGuard.

[ZacSweers]

Should we use that workaround for 5.0 as well? Started getting this issue after updating, but it's a silent exception and doesn't crash the app.

... W/dalvikvm﹕ Unable to resolve superclass of Lbutterknife/internal/ButterKnifeProcessor; (1067)
... W/dalvikvm﹕ Link of class 'Lbutterknife/internal/ButterKnifeProcessor;' failed

P.S. Hey Madison, long time no see haha

[JakeWharton]

I'm going to split up the processor and the runtime in v6. No ETA.

[JakeWharton]

Encapsulated in #192.