Android SDK tools revision 12 has problem with Proguard => error conversion to Dalvik format failed with error 1 [duplicate]

The problem is caused by ProGuard command line in R12 in the file [Android SDK Installation Directory]\tools\proguard\bin\proguard.bat. Simply edit the following line will solve the problem.

Change

call %java_exe% -jar "%PROGUARD_HOME%"\lib\proguard.jar %*

to

call %java_exe% -jar "%PROGUARD_HOME%"\lib\proguard.jar %1 %2 %3 %4 %5 %6 %7 %8 %9

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