Yesterday evening I upgrade to ADT-21 and restarted eclipse. Then eclipse said that you need to update android tool to version 21. I downloaded window_installer21 and install it in the same location where my previous window_installer was installed. So it overwrite the file. Then I restarted eclipse and suddenly all project stop working. Eclipse always open with the error.
SecurityException: Unable to find field for dex.jar
And when i try to launch a project it stops with the below error
Unknown error: Unable to build: the file dx.jar was not loaded from the SDK folder!
SDK Manager is also not opening.
I have tried:
- Clearing all project
- Re stared eclipse and computer about 20-30 timmes
- Uninstall Android SDk, JAVA and reinstalled it
- Setting the path of find_java.bat file
- Searched 6 hour over internet and read some form
Nothing seems to work.
A popup appears warning you to update to the latest sdk and opens the appropriate tool. Tried this (several times – restarting each time) with no effect.
Instead the answer was ..
In eclispe, find the location of your android sdk (Window->Preferences->Android and the SDK location is at the top of the page).
Close down eclispe.
Find the sdk on the disk – and run the standalone SDK Manager.exe (It appears to fail when first opened – but wait a second or two for the gui to appear). Note – this is the same gui that was previously opened by eclipse!
Take all the updates as recommended. A dialog box appears indicating that the management tool itself has been updated and should be restarted.
Restart the tool – take any more updates recommended and close.
Start eclipse – the problem has gone away!