Android Studio cannot access the function in the other class

Question

I have the class A with the public function "go()" in the module_A,when I use the A a=new A() in the module_B, It work well.but when I call the function "a.go()",the android studio write the error message that you cannot access the package "xxxxxxxxx";

In the module_B,I have write the compile project(":module_A") in the build.gradle file;

Answer 1

Rebuild your module. Then if it didn't work you can use Invalidate Caches/ Restart in File menu of Android Studio.