android - Eclipse Installation error: INSTALL_FAILED_UID_CHANGED

Question

I have problem with running an android application from eclipse on real android device

when I click on Run it just show me this error: Installation error: INSTALL_FAILED_UID_CHANGED

Logcat:

[2012-09-09 14:38:26 - SearchApp] Android Launch!
[2012-09-09 14:38:26 - SearchApp] adb is running normally.
[2012-09-09 14:38:26 - SearchApp] Performing com.example.MainActivity activity launch
[2012-09-09 14:38:26 - SearchApp] Automatic Target Mode: using device 'cff192abd7f551f'
[2012-09-09 14:38:26 - SearchApp] Uploading SearchApp.apk onto device 'cff192abd7f551f'
[2012-09-09 14:38:27 - SearchApp] Installing SearchApp.apk...
[2012-09-09 14:38:28 - SearchApp] Installation error: INSTALL_FAILED_UID_CHANGED
[2012-09-09 14:38:28 - SearchApp] Please check logcat output for more details.
[2012-09-09 14:38:28 - SearchApp] Launch canceled!

Answer 1

I EVENTUALLY FOUND THE SOLUTION FOR INSTALL_FAILED_DEXOPT and INSTALL_FAILED_UID_CHANGED ERROR

After lot of testing a vary of tricks in vain, I eventually found the main solution to solve this sticky problem forever!

I think the problem is caused by an Eclipse bug! , in fact eclipse can not copy and install built APK file just because of a string name(described further)

I should add that when you use tricks on internet such as delete package name folder in data/data you will face a new sticky error "INSTALL_FAILED_DEXOPT"

So lets see how to solve INSTALL_FAILED_DEXOPT and INSTALL_FAILED_UID_CHANGED

In my case, when i check the log cat i noticed below lines:

09-30 19:03:19.882: I/PackageManager(314): Running dexopt on: com.example.searchapp
09-30 19:03:19.921: E/dalvikvm(6129): Invalid name: 'search_?country_name'
09-30 19:03:19.921: E/dalvikvm(6129): Trouble with item 226 @ offset 0x2094
09-30 19:03:19.921: E/dalvikvm(6129): Cross-item verify of section type 0004 failed
09-30 19:03:19.921: E/dalvikvm(6129): ERROR: Byte swap + verify failed
09-30 19:03:19.961: E/dalvikvm(6129): Optimization failed
09-30 19:03:19.961: W/installd(144): DexInv: --- END '/data/app/com.example.searchapp-1.apk' --- status=0xff00, process failed
09-30 19:03:19.961: E/installd(144): dexopt failed on '/data/dalvik-cache/data@[email protected]@classes.dex' res = 65280
09-30 19:03:19.961: W/PackageManager(314): Package couldn't be installed in /data/app/com.example.searchapp-1.apk

As you can see the second line is: Invalid name: 'search_?country_name'

This is one of my string names in String.xml

So I delete this string and comment all referenced codes

Then I delete the package name folder in /data/data (if you are using a actual device you should have root access , if you are using emulator just wipe data before opening emulator or make a new AVD)

Now the problem is solved!

You can easily continue coding!