Solution to "conversion to Dalvik format failed with error 1" during Android obfuscation code

The error indicates that the file cannot be converted to the Virtual Machine format, but the APK package can be generated normally when proguard. Config = proguard. cfg is not added.CodeThe statement cannot generate the APK package, and the error "conversion to Dalvik format failed with error 1" is prompted.

This is because the obfuscator version is too low. download the latest code development tool from http://proguard.sourceforge.net/and replace it with liband bincontents after decompression.[Android SDK installation directory] \ tools \ proguard
Folder with the same name in. This is a fundamental solution

Some projects do not have the default. properties file, but object. progerties. In fact, these two files are the same, but different Android versions use different names for different la S.