Django runningerver hangs on "System scan did not detect problems (0 disabled)."

Question

In one Ubuntu window, a project runs only with python manage.py runserver . When you try to repeat it in another Ubuntu window after installation, it freezes in System check identified no issues (0 silenced). without further conclusion.

Answer 1

Just stumbled upon the same problem - in my case it happened because the database server was down

EDIT: Django Version 1.9

Answer 2

In my case, I tried to connect to a remote database that did not respond to connection requests.

Try python manage.py dbshell . It did not give me a result. Then I went into amazon web services and softened the security settings.

Answer 3

It could be a database connection error.

If you use AWS for your database, go to the RDS instances tab, click on security groups and change their inbound / outbound rules to allow connections from the correct host (or from anywhere for quick fix)

Answer 4

It might be worth reading about the system verification system .

 Serious errors will prevent Django commands (such as runserver) from running at all. Minor problems are reported to the console. If you have inspected the cause of a warning and are happy to ignore it, you can hide specific warnings using the SILENCED_SYSTEM_CHECKS setting in your project settings file. 

If you don’t see that any problem is displayed, probably due to the absence of problems with checking the system, if something else does not work, the error may not be related, then we need additional information.

Answer 5

I had the same problem, and I realized that this happened because I recently activated my VPN, so if someone has a VPN, that’s probably why. You need to follow Harry's directions for correction.