I have taken a fresh install of Eclipse and all the latest Android tools and want to use Proguard on existing project, but for now I have created a new blank one.
I have added a proguard.cfg file to my project
added proguard.config=proguard.cfg to my default.properties
Now when I try to export I get the following error
[2010-12-12 10:36:35 - ApplicationTest] Proguard returned with error code 1. See console
[2010-12-12 10:36:35 - ApplicationTest] 'C:\Program' is not recognized as an internal or external command,
[2010-12-12 10:36:35 - ApplicationTest] operable program or batch file.
[2010-12-12 10:36:35 - ApplicationTest] '-jar' is not recognized as an internal or external command,
[2010-12-12 10:36:35 - ApplicationTest] operable program or batch file.
I know it means there is a filepath setup incorrectly, question is where the heck is as I have looked through the general properties and project properties and can't see any reference to proguard or obfuscation so am stuck on what to change
Any help appreciated.
You need to define your Android SDK path without spaces. Copy&Paste from this answer by Mark:
Proguard error: Expecting class path seperator - not sure where I need to put a path in quotes
Yep, that worked for me. To put it specifically:
In Eclipse: Window > Preferences > Android > SDK Location
use something like c:\Progra~1\android-sdk (or maybe c:\Progra~2\android-sdk on 64bit)
For me the path is "c:\Progra~1\Android\android-sdk-windows"
According to comments posted by a Google Engineer in thread here: http://groups.google.com/group/android-developers/browse_thread/thread/19b96902fc20cede
*.bat file shipped with ProGuard doesn't support paths with spaces.
Having Java and Android SDK installed on paths without spaces doesn't solve the problem completely. Things can go wrong if path to eclipse workspace, temp folder or some of external JAR files contains spaces as well.
I was too lazy to re-install everything so my workaround involves making junction points on a file system.
I just reinstalled JAVA and ANDROID in the root directory instead of under their default paths in program files and it all worked
Is there not a way to specify the direct paths ourselves to the Java and Android SDK in the proguard config file?
This problem looks to be fixed in ADT 12. The following change in main_rules.xml solves the problem and should be included in ADT 12: https://review.source.android.com/#change,22791.
I can verify that downloading the fixed version and replacing the copy that comes with the sdk at your_sdk_path/tools/ant fixes this issue.
OK , now i found one way to fix this problem 1, set up the "PROGUARD_HOME" EVN PATH to \tools\proguard 2, restart eclipse 3, now it work fine!
I changed the SDK paths to the 8.3 format and changed the proguard.jar folder in proguard.bat to the 8.3 format and now all is working again!
来源：https://stackoverflow.com/questions/4421262/using-proguard-for-android-in-eclipse-got-error