Android Studio更新到3.1以后旧项目报错的解决办法

android studio从2.2更新到3.1后运行之前的旧项目报错：

org.gradle.api.tasks.taskexecutionexception: execution failed for task ':mwms:transformnativelibswithstripdebugsymbolfordebug'.

causedby: net.rubygrapefruit.platform.nativeexception: could not start 'd:\as_sdk\ndk-bundle\toolchains\mips64el-linux-android-4.9\prebuilt\windows-x86_64\bin\mips64el-linux-android-strip'

caused by: java.io.ioexception: createprocess error=2, 找不到指定的文件

解决方法：settings > appearance & behavior > sysytem settings > android sdk > sdk tools

卸载ndk