Troubleshooting

Some errors might occur while trying to start the server or connect to it. This section covers how to fix common issues.

Is there an error you do not know how to fix? Consider opening an issue on GitHub! We and others are glad to help you.

“Address already in use”

The port you have chosen is already used by another program. Try out another 4-digit value. “6464” is used in all examples in the documentation.

Example:

# change this:
app.start("localhost", 6464)

# to this:
app.start("localhost", 7654)

“Could not connect to server: …”

Make sure you have disabled “Require Encrypted Websockets” when you do not use an encrypted connection (which is usually the case). Sometimes you might have to type the /connect or /wsserver over and over or restart the server by stopping the program and running it again.