Roboelectric 2.2 error - robolectric

Question

I am getting the following error with roboelectric 2.2
java.lang.IncompatibleClassChangeError: class org.objectweb.asm.tree.ClassNode has interface org.objectweb.asm.ClassVisitor as super class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at org.robolectric.RobolectricTestRunner.createRobolectricClassLoader(RobolectricTestRunner.java:144)
at org.robolectric.RobolectricTestRunner.createSdkEnvironment(RobolectricTestRunner.java:116)
at org.robolectric.RobolectricTestRunner$3.create(RobolectricTestRunner.java:279)
at org.robolectric.EnvHolder.getSdkEnvironment(EnvHolder.java:21)
at org.robolectric.RobolectricTestRunner.getEnvironment(RobolectricTestRunner.java:277)
at org.robolectric.RobolectricTestRunner.access$100(RobolectricTestRunner.java:57)
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:188)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:175)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
I configured using the site http://www.androiddevelopersolution.com/2013/03/android-unit-testing-with-robolectric.html
I am using the android jar file in the application and the test project. Any suggestions? Thank you.

Answer 1

yes, I had the same problem, asm version issue as #thoutisbeckers said. Try this:
dependencies {
androidTestCompile 'org.robolectric:robolectric:2.+'
androidTestCompile 'junit:junit:4.+'
compile 'org.ow2.asm:asm:4.0'
compile ('org.roboguice:roboguice:2.0') {
exclude module: 'asm'
}
}

Answer 2

This looks like you're using version 1.7 of the JDK to compile and run your Robolectric tests. JDK 1.7 is incompatible with Robolectric and can result in issues similar to the one you're seeing.

Answer 3

You likely have a dependency somewhere on an old version of asm (lower than version 4). Make sure you exclude it from the build path since Robolectric only work with 4 an up.
In my case it was a version of Guice that contributed it.