20、Warning: there were * unresolved references to classes or interfaces.

1、发布Rease版本时遇到这样的错误提示:

 

Warning: there were 4 unresolved references to classes or interfaces.
         You may need to add missing library jars or update their versions.
         If your code works fine without the missing classes, you can suppress
         the warnings with '-dontwarn' options.
         (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
Exception while processing task 
java.io.IOException: Please correct the above warnings first.

2、查找了 很久 最终找到了 解决方法 

如何解决这个问题也很简单,编译错误提示已经给除了参考地址
http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass
我在proguard-rules.pro这个文件了加了一行

 -ignorewarnings
3、参考出处:
https://github.com/jiangzhouq/TechnologyRecord/issues/2

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