问题
I have spent two days in this. I can work with other PC, but my Android Studio doesn´t import the library, I took two captures:
As yo can see in the first picture, Android Studio autocompletes my line:
However:
I was reading about JSONObject in Android Developers (here) and Android include this in library. I also have tried to import other libraries from "org", but just works fine two of them:
Them... I was thinking this might be a problem of Android Studio, and I reinstalled the IDE, the error persists.
And I have tried to import the library in the gradle (this is in build.gradle module: app):
I was working with other PC, it works well, but I need to fix this in my computer.
Please, any help will be grateful.
回答1:
I´ll respond to the future, if someone has the same error:
I did this (Thaks to Bigdestroyer):
File -> Invalidate caches/Restart -> Invalidate and Restart
You can try to delete ~/.gradle/caches directory to force re-download the dependencies.
Now its works perfect. Thanks !!!!
来源：https://stackoverflow.com/questions/29916334/cannont-resolve-symbol-jsonobject-android-studio