How to make Proguard ignore external libraries? <p>I want to use Proguard mainly for obfuscation reasons.</p> <p>My problem is that I have three libraries, Twitter4J and two signpost libraries. These libraries caused errors when I tried to create an signed APK. To get over this I put the following in the <code>proguard.config</code> file...</p> <pre><code>-dontwarn org.apache.commons.codec.binary.** -dontwarn org.slf4j.** -dontwarn com.sun.syndication.io.** -dontwarn com.sun.syndication.feed.synd.* </code></pre> <p>While this got rid of the errors in the console, when i loaded my signed APK onto my mobile phone it instantly crashed. The DDMS said this was due to a class not found in Twitter4J. </p> <p>Getting rid of the <code>"dontwarns"</code> above did not help. Neither did adding <code>dontshrink dontoptimise</code>.</p> <p>I would like Proguard to completely ignore the libraries (as they are open source anyway). Is this possible?</p>