Java.lang.verifyerror how do I fix or even find out the root cause?

Question

Currently going through a nightmare attempting to fix a java.lang.verifyerror, was having issues with eclipse so I decided to uninstall and reinstall it, everything seemed normal until I tried to launch the app, thats when I noticed that I couldnt launch the app anymore, everytime I try to lauch it it crashes and gives me this error, however I have no clue what is causing it as the error log gives me little clues and I cant find any concrete answers on the internet, can anyone tell me what is wrong based on my logcat? any help will go a long way thanks

05-26 23:11:45.391: E/AndroidRuntime(624): FATAL EXCEPTION: main
05-26 23:11:45.391: E/AndroidRuntime(624): java.lang.VerifyError: com/vineline/second/OTweetApplication
05-26 23:11:45.391: E/AndroidRuntime(624):  at java.lang.Class.newInstanceImpl(Native Method)
05-26 23:11:45.391: E/AndroidRuntime(624):  at java.lang.Class.newInstance(Class.java:1319)
05-26 23:11:45.391: E/AndroidRuntime(624):  at android.app.Instrumentation.newApplication(Instrumentation.java:957)
05-26 23:11:45.391: E/AndroidRuntime(624):  at android.app.Instrumentation.newApplication(Instrumentation.java:942)
05-26 23:11:45.391: E/AndroidRuntime(624):  at android.app.LoadedApk.makeApplication(LoadedApk.java:477)
05-26 23:11:45.391: E/AndroidRuntime(624):  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3909)
05-26 23:11:45.391: E/AndroidRuntime(624):  at android.app.ActivityThread.access$1300(ActivityThread.java:122)
05-26 23:11:45.391: E/AndroidRuntime(624):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1184)
05-26 23:11:45.391: E/AndroidRuntime(624):  at android.os.Handler.dispatchMessage(Handler.java:99)
05-26 23:11:45.391: E/AndroidRuntime(624):  at android.os.Looper.loop(Looper.java:137)
05-26 23:11:45.391: E/AndroidRuntime(624):  at android.app.ActivityThread.main(ActivityThread.java:4340)
05-26 23:11:45.391: E/AndroidRuntime(624):  at java.lang.reflect.Method.invokeNative(Native Method)
05-26 23:11:45.391: E/AndroidRuntime(624):  at java.lang.reflect.Method.invoke(Method.java:511)
05-26 23:11:45.391: E/AndroidRuntime(624):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
05-26 23:11:45.391: E/AndroidRuntime(624):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-26 23:11:45.391: E/AndroidRuntime(624):  at dalvik.system.NativeStart.main(Native Method)

Answer 1

This is a problem with ADT v22. It is pretty hard to fix. There are some suggestions here: The CommonsBlog - Don't Manually Modify Your Eclipse Build Path... Except Now for R22 (thanks to StreetsOfBoston and CommonswareGuy)

Answer 2

So, as far as I'm aware, Android uses a different class file format and if you are running a third party JAR/Java files, you have to first run them through the dx tool that ships with the Android SDK.

Other possible reason may probably be some method in a java.lang class that is not supported on the Android SDK level you are using (for instance, String.isEmpty()).

Answer 3

If the answer by @G. Blake Meike doesn't work for you for whatever reason, here's another way of fixing it.

1. Right Click Project > Build Path > Configure Build Path
2. Click on Android on left
3. On right select any other Target Name/API other than 4.2.2 since it seems that's with problems.
4. Hit OK (At this point it rebuilds your projects with the selected API)
5. Run the Application

Hope that helps.

Answer 4

I just enabled the 3rd party library in the "Import and export" TAB of configuring build path.