CORE-3399PRO-JD4编译Android 8.1源码出错是何原因？

　　编译Android 8.1 源码时出现错误：

　　FAILED： out/soong/.bootstrap/docs/soong_build.html

　　out/soong/.bootstrap/bin/soong_build -t -b out/soong --docs
out/soong/.bootstrap/docs/soong_build.html 。/Android.bp

　　求教如何解决啊！！