Proguard is android Code Obfuscation tool, Program It is very useful for staff to protect their own labor results, which are already included in Android SDK 2.3. The error "conversion to Dalvik format failed with error 1" is reported when proguard is configured to use export Android Application. Someone on the Internet introduced the two methods of downgrading the SDK to R11 and modifying proguard. bat, but the most thorough method is to include proguard in Android SDK 2.3.
Upgrade v4.4 to v4.6 to completely solve this problem.
Solution: download from here
The latest version of proguard. I downloaded v4.6. decompress the proguard4.6.zip file and overwrite the bin and Lib folders in the [Android SDK installation directory] \ tools \ proguard folder with the same name
Go back to eclipse and re-execute the export Android Application to check whether the application is successful.
If it cannot be used properly after the update, restart eclipse and update the ADT.
