If you are on React-Native 0.63.3 check the build system.
When I had this problem my Workspace was configured with the New Build System try to use the Legacy Build System.
MarcosSarges
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
User for
From
Belém - PA, Brazil