Problem description

Running a python flash project on a new machine causes the following problems:
error: while importing 'run_ app_ dev', an ImportError was raised.

resolvent

It is said on the Internet that it is a circular call problem, but this project can run on my laptop. I doubt whether it is the version of flash, because I directly installed the latest Flash. After uninstalling the latest flash, I installed 1.1.2 flash. This problem is solved