Some file crunching failed, see logs for details build gradle issues

将android studio更新到2.3以后，再次build项目时出现了以下错误：

Some file crunching failed, see logs for details build gradle issues

开启gradle调试后，发下解决方法如下：

1）检查项目中是否存在有问题的.9资源文件，找出来将其删除或替换

2)  修改build配置如下

    aaptOptions{        cruncherEnabled = false        useNewCruncher = false    }

(useNewCruncher、cruncherEnabled是禁止 Gradle 检查png的合法性)

最后打开 File->Invalidate and Restart