Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Flask Basics Templates and Static Files Flat HTML

Ruby Cai
Ruby Cai
6,421 Points
Posted by Ruby Cai
Ruby Cai
6,421 Points

how to fix it ? i change my port , but it still the same problem

File "/usr/local/pyenv/versions/3.5.0/lib/python3.5/site-packages/flask/app.py",
line 772, in run
run_simple(host, port, self, **options)
File "/usr/local/pyenv/versions/3.5.0/lib/python3.5/site-packages/werkzeug/servin
g.py", line 618, in run_simple
test_socket.bind((hostname, port))
OSError: [Errno 98] Address already in use

2 Answers

Keith Doyle
Keith Doyle
25,973 Points
Keith Doyle
Keith Doyle
25,973 Points

I had a similar issue. If you're running this locally there could be something using the port you designated. Try using a different port in your app.run command.

app.run(debug=True, host='0.0.0.0', port='1234')
Ruby Cai
Ruby Cai
6,421 Points
Ruby Cai
Ruby Cai
6,421 Points

thank you ^^

Anthony Dibaya
Anthony Dibaya
10,194 Points
Anthony Dibaya
Anthony Dibaya
10,194 Points

I'm running this on workspace and that didnt solve my problem although I did run those command through the terminal..any suggestions?