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

问题

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)

回答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)

回答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()).

回答3:

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

Right Click Project > Build Path > Configure Build Path

Click on Android on left

On right select any other Target Name/API other than 4.2.2 since it seems that's with problems.

Hit OK (At this point it rebuilds your projects with the selected API)

Run the Application

Hope that helps.