Bench Serve Error on Version-12

ERPNext
1

After Complete Frappe and Erpnext Installation without Any Errors,
when i try to run command bench serve --port 9090
Shows Below Traceback on Console:

Traceback (most recent call last):
  File "/usr/lib/python3.5/runpy.py", line 184, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 97, in <module>
    main()
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 18, in main
    click.Group(commands=commands)(prog_name='bench')
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/env/lib/python3.5/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/apps/frappe/frappe/commands/__init__.py", line 25, in _func
    ret = f(frappe._dict(ctx.obj), *args, **kwargs)
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/apps/frappe/frappe/commands/utils.py", line 547, in serve
    import frappe.app
  File "/home/guruprasad/workspace/nano-mag-tech/frappe-bench/apps/frappe/frappe/app.py", line 13, in <module>
    from werkzeug.contrib.profiler import ProfilerMiddleware
ImportError: No module named 'werkzeug.contrib'
1 Like
2

Same!

I searched for ‘werkzeug.contrib’ and found nothing a half an hour ago. Now the search hits your post and mine.

Could you supply your version numbers and installation method like I did, please.

Did you fresh install today?

3

yes i have done fresh installation and also found workaround it, will post in few minutes

4

You should downgrade werkzeug to the version 0.16.4.

1 Like
5

@MartinHBramwell check python version in frappe-bench python -V
by using virtualenv if it is 3.5 then you need to execute below command in frappe-bench
./env/bin/pip install werkzeug==0.16.0

4 Likes
6

Confirmed!

Yup, that did the trick. Thanks

7

@MartinHBramwell is Above Solution works for you ?