Shrey Doshi

> my code is right but I don't know why it is showing issue. > By the way I use Ubuntu >  The solution can be found out [here](https://stackoverflow.com/questions/56505370/error-in-flutter-widget-test-dart-cannot-detect-myapp)

Dear @nezoat, I implemented the things you said. But the problem still persist! - > **"to use the BuildContext in the ArrowContainer and call findRenderObject() on it and save to...