Error when running Test Project in GUI

[vlv-vm]

Hello,

When trying to run the Test project in SeQUeNCe GUI I get an error.

Steps to reproduce:

• Start flask app through terminal as per documentation
• While in SeQUeNCe web app, open Run tab; add Name and Time; set logging options to Info; Run

After running the simulation, terminal output looks like this:

ubuntuvm@ubuntuvm-virtual-machine:~/Desktop/sequence/SeQUeNCe$ python3 gui.py
Dash is running on http://127.0.0.1:8050/

Dash is running on http://127.0.0.1:8050/

• Serving Flask app 'sequence.gui.app'
• Debug mode: off
  WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
• Running on http://127.0.0.1:8050
  Press CTRL+C to quit
  127.0.0.1 - - [28/Mar/2023 10:24:07] "GET / HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:07] "GET /_dash-layout HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:07] "GET /_dash-dependencies HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:07] "GET /_dash-component-suites/dash/dcc/async-dropdown.js HTTP/1.1" 304 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 204 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 204 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 200 -
  127.0.0.1 - - [28/Mar/2023 10:24:08] "POST /_dash-update-component HTTP/1.1" 200 -
  Exception on /_dash-update-component [POST]
  Traceback (most recent call last):
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/flask/app.py", line 2528, in wsgi_app
  response = self.full_dispatch_request()
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/flask/app.py", line 1825, in full_dispatch_request
  rv = self.handle_user_exception(e)
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/flask/app.py", line 1823, in full_dispatch_request
  rv = self.dispatch_request()
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/flask/app.py", line 1799, in dispatch_request
  return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/dash/dash.py", line 1273, in dispatch
  ctx.run(
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/dash/_callback.py", line 440, in add_context
  output_value = func(*func_args, **func_kwargs) # %% callback invoked %%
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/sequence/gui/app.py", line 1042, in run_sim
  if not self.simulation.timeline.is_running:
  AttributeError: 'QuantumGUI' object has no attribute 'simulation'
  Exception on /_dash-update-component [POST]
  Traceback (most recent call last):
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/flask/app.py", line 2528, in wsgi_app
  response = self.full_dispatch_request()
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/flask/app.py", line 1825, in full_dispatch_request
  rv = self.handle_user_exception(e)
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/flask/app.py", line 1823, in full_dispatch_request
  rv = self.dispatch_request()
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/flask/app.py", line 1799, in dispatch_request
  return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/dash/dash.py", line 1273, in dispatch
  ctx.run(
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/dash/_callback.py", line 440, in add_context
  output_value = func(*func_args, **func_kwargs) # %% callback invoked %%
  File "/home/ubuntuvm/.local/lib/python3.10/site-packages/sequence/gui/app.py", line 1042, in run_sim
  if not self.simulation.timeline.is_running:
  AttributeError: 'QuantumGUI' object has no attribute 'simulation'
  127.0.0.1 - - [28/Mar/2023 10:24:20] "POST /_dash-update-component HTTP/1.1" 500 -

Based on the error I checked https://github.com/sequence-toolbox/SeQUeNCe/blob/master/src/gui/app.py, and noticed that simulation attribute is not implemented. Is there a quick fix to get this simulation up and running or an approximate ETA for this feature?

Thank you.

[LydiaNosali]

I got the same problem. The self.simulation is actually commented, I tried to uncomment and run, but it gives other errors that require change in the code of the node class, so I stopped there. Is there a way to update the Gui to the new architecture of sequence?