IncompatibleClassChangeError

[Davion8948]

Hello：
Is it must rebuild the whole project after delete some public static final String fields?
Because after I deleted a filed my app crashed by:

`java.lang.IncompatibleClassChangeError: com.xxx.rc.example.view.ExampleActivity
                      at dalvik.system.DexFile.defineClassNative(Native Method)
                      at dalvik.system.DexFile.defineClass(DexFile.java:226)
                      at dalvik.system.DexFile.loadClassBinaryName(DexFile.java:219)
                      at dalvik.system.DexPathList.findClass(DexPathList.java:322)
                      at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:54)
                      at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
                      at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
                      at android.app.Instrumentation.newActivity(Instrumentation.java:1078)
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2515)
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2697)
                      at android.app.ActivityThread.access$800(ActivityThread.java:179)
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1540)
                      at android.os.Handler.dispatchMessage(Handler.java:111)
                      at android.os.Looper.loop(Looper.java:194)
                      at android.app.ActivityThread.main(ActivityThread.java:5796)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at java.lang.reflect.Method.invoke(Method.java:372)
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1010)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)`

[lomanyong]

@Davion8948 Is this case can be recurrent? I have repeated this case in sample project but didn't find a crash.

[Davion8948]

@lomanyong
Yes. I can recurrent this.

After I created a new sample project, I created a super Activity like this:

public abstract class BaseActivity extends AppCompatActivity{
  //Delete this or add this
  public static final String TAG = "BaseActivity";
}

Then let Activity extends this and run python freeline.py, it's ok now.
Next I deleted the TAG field and rerun python freeline.py the app will crash with that error.

[charvenhe]

@Davion8948 it may be abstract class change ，winch cause sub class does not match with the parent class,you can remove "abstract" in BaseActivity and try again .

Freeline has some problem on processing abstract class change case now， we will fix it soon

[Davion8948]

@charvenhe

好的，谢谢。主页上和Wiki上好像没有关于目前有哪些情况可能导致问题，希望有时间能加一下，这样在使用的时候可以避开相应的问题。

[lomanyong]

@Davion8948 嗯，我们也在整理这部分内容，尽快都完善起来，感谢提议～