Codesign error with Flutter on iOS

Question

So I have been trying to get into Flutter recently and I am having issues. When I create a new project and do flutter run it works just fine. If I completely close

Answer 1

So after a long time if finally figured out how to fix it.

The way I was able to fix is to delete the build directory in the root of your flutter project. The folder just gets rebuilt without the files causing the problem.

I assume it has something to do with forking the fonts/images I was adding to the project.

Edit (6/4/2019) You can also use flutter clean and it will also solve the issue. Stated by @Luke Stanyer below!