Android 9 编译报错备忘

问题一：missing and no known rule to make it

ninja: error: 'out/target/common/obj/JAVA_LIBRARIES/aaa_intermediates/classes-header.jar', needed by 'out/target/common/obj/APPS/bbb_intermediates/classes-full-debug.jar', missing and no known rule to make it

编译bbb应用时报错。在out/target/common/obj/JAVA_LIBRARIES目录下，发现jar包没生成。

实际在Android.mk里面已经有：

LOCAL_JAVA_LIBRARIES += aaa

 解决方案：

在应用bbb的Android.mk里面加上一个变量

@@ -18,5 +18,8 @@ LOCAL_PROGUARD_FLAG_FILES := proguard.flags
 LOCAL_JAVA_LIBRARIES += aaa

+LOCAL_REQUIRED_MODULES += aaa

然后mmm应用aaa，编译pass，整编pass，问题解决