android6.0编译失败

今天编译时报了如下错误，查了资料发现是jdk版本的问题编辑android 6.0需要的是jdk7，我电脑上的是jdk8，所以报错。

原文：https://stackoverflow.com/questions/36733124/failed-to-make-the-source-of-android-6-0

WORKING_DIR/frameworks/base/docs/html/guide/topics/ui/drag-drop.jd:-980: error 101: Unresolved link/see tag "android.view.View.DragShadowBuilder#View.DragShadowBuilder()" in [null]
 WORKING_DIR/frameworks/base/docs/html/guide/topics/ui/drag-drop.jd:-980: error 101: Unresolved link/see tag "android.view.View.DragShadowBuilder#View.DragShadowBuilder(View)" in [null] 
frameworks/base/core/java/android/app/job/JobScheduler.java:22: error 101: Unresolved link/see tag "android.app.job.JobInfo.Builder#JobInfo.Builder(int,android.content.ComponentName)" in android.app.job.JobScheduler 
frameworks/base/core/java/android/view/View.java:19490: error 101: Unresolved link/see tag "#View.DragShadowBuilder()" in android.view.View.DragShadowBuilder 
frameworks/base/core/java/android/view/View.java:19490: error 101: Unresolved link/see tag "#View.DragShadowBuilder(View)" in android.view.View.DragShadowBuilder DroidDoc took 161 sec. to write docs to out/target/common/docs/doc-comment-check 4 个警告 build/core/droiddoc.mk:165: recipe for target 'out/target/common/docs/doc-comment-check-timestamp' failed make: *** [out/target/common/docs/doc-comment-check-timestamp] Error 45