1，依赖库版本问题的解决方法
W/art: Incompatible structural change detected: Structural change of android.support.v4.app.FragmentActivity is hazardous (/data/user/0/<package_name>/files/dexOpt/com.tugele.expression.odex/plugin_doutu-debug.dex at compile time, /data/app/<package_name>-1/oat/arm/base.odex at runtime): Virtual method count off: 45 vs 46
W/art: Landroid/support/v4/app/FragmentActivity; (Compile time):
依赖库的隐含依赖问题，分析和解决思路见这篇文章
