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gradle cannot build project with org.scribe dependency when using proguard

See original GitHub issue

In build.gradle I have the following dependency on the org.scribe:scribe library: compile ‘org.scribe:scribe:1.3.5’

Building the release version of the app fails because the proguardRelease target fails:

 [exec] Warning: org.scribe.services.CommonsEncoder: can't find referenced class org.apache.commons.codec.binary.Base64
 [exec] Warning: org.scribe.services.CommonsEncoder: can't find referenced class org.apache.commons.codec.binary.Base64
 [exec] Warning: org.scribe.services.DatatypeConverterEncoder: can't find referenced class javax.xml.bind.DatatypeConverter
 [exec] Warning: org.scribe.services.DatatypeConverterEncoder: can't find referenced class javax.xml.bind.DatatypeConverter
 [exec] Warning: there were 4 unresolved references to classes or interfaces.
 [exec] 
 [exec] FAILURE: Build failed with an exception.         You may need to add missing library jars or update their versions.
 [exec]          If your code works fine without the missing classes, you can suppress
 [exec] 
 [exec] 
 [exec] * What went wrong:
 [exec] Execution failed for task ':proguardRelease'.
 [exec]          the warnings with '-dontwarn' options.> java.io.IOException: Please correct the above warnings first.
 [exec]          (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
 [exec] :proguardRelease FAILED

I’m not sure what the meaning of the error is.

I’ve seen this workaround of adding the following two lines to the proguard configuration file: (https://github.com/yasuoza/HBFav-Android/blob/master/HBFav/proguard-android-release.txt)

-dontwarn org.apache.commons.codec.binary.Base64 -dontwarn javax.xml.bind.DatatypeConverter

Is this ok? If so, could you update your readme.md? Thanks!

Issue Analytics

State:
Created 9 years ago
Comments:9

Top GitHub Comments

1reaction

kurtisnelsoncommented, Nov 5, 2014

Add to your proguard config. @fernandezpablo85 Might want to drop this in your README, anyone using scribe on Android will run into this on production builds, Android is missing these dependencies.

-dontwarn javax.xml.bind.DatatypeConverter
-dontwarn org.apache.commons.codec.binary.Base64

0reactions

truefedexcommented, Jun 9, 2017

I get this exception while using Twitter apis with proguarded app: java.lang.IllegalArgumentException: class com.github.a.b.e.b declares multiple JSON fields named a

Then I added this to my proguard configuration -keepclasseswithmembers class com.github.scribejava.core.** { *; } and error dissappeared

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