Loading config resulted in errors

[lauramurgatroyd]

Hi! I used a config file (.json) which I previously exported from WebCT to reload a session, but I got an error:

[2025-03-05 15:03:35,550] ERROR in app: Exception on /capture/set [PUT]
Traceback (most recent call last):
  File "flask\app.py", line 1511, in wsgi_app
  File "flask\app.py", line 919, in full_dispatch_request
  File "flask\app.py", line 917, in full_dispatch_request
  File "flask\app.py", line 902, in dispatch_request
  File "webct\blueprints\capture\routes.py", line 16, in setCapture
    simdata.capture = CaptureParameters.from_json(data)
  File "webct\components\Capture.py", line 40, in from_json
ValueError: Missing keys.
2025-03-05 15:03:35,550 [ERROR] webct: Exception on /capture/set [PUT]
Traceback (most recent call last):
  File "flask\app.py", line 1511, in wsgi_app
  File "flask\app.py", line 919, in full_dispatch_request
  File "flask\app.py", line 917, in full_dispatch_request
  File "flask\app.py", line 902, in dispatch_request
  File "webct\blueprints\capture\routes.py", line 16, in setCapture
    simdata.capture = CaptureParameters.from_json(data)
  File "webct\components\Capture.py", line 40, in from_json
ValueError: Missing keys.

Note: I am using v1.0.0 of WebCT

[lauramurgatroyd]

When I tried to move the source/detector distances I also got an error:

[2025-03-05 15:47:05,312] ERROR in app: Exception on /sim/preview/get [GET]
Traceback (most recent call last):
  File "flask\app.py", line 1511, in wsgi_app
  File "flask\app.py", line 919, in full_dispatch_request
  File "flask\app.py", line 917, in full_dispatch_request
  File "flask\app.py", line 902, in dispatch_request
  File "webct\blueprints\preview\routes.py", line 54, in getPreviews
    projection = sim.projection()
  File "webct\components\sim\SimSession.py", line 232, in projection
  File "webct\components\sim\clients\SimClient.py", line 333, in getProjection
AttributeError: 'SimClient' object has no attribute 'detector'
2025-03-05 15:47:05,312 [ERROR] webct: Exception on /sim/preview/get [GET]
Traceback (most recent call last):
  File "flask\app.py", line 1511, in wsgi_app
  File "flask\app.py", line 919, in full_dispatch_request
  File "flask\app.py", line 917, in full_dispatch_request
  File "flask\app.py", line 902, in dispatch_request
  File "webct\blueprints\preview\routes.py", line 54, in getPreviews
    projection = sim.projection()
  File "webct\components\sim\SimSession.py", line 232, in projection
  File "webct\components\sim\clients\SimClient.py", line 333, in getProjection
AttributeError: 'SimClient' object has no attribute 'detector'

[WYVERN2742]

Thanks for the issue 😅

The first error regarding missing keys is due to the laminigraphy node added. Manually editing your json file and adding a key of "laminographyMode":false to the capture object should fix it.

V1.0.0 and onwards will have backwards compatibility between versions's configs, but that's not something kept in mind for the beta v0.x.y releases

As for the second I'm not sure! Was this in attempt of moving the detector after loading the previous config? It looks like the session failed to populate the detector configuration before trying to setup a scan, meaning half the acquisition geometry would be missing. Clicking update on the page should fix it, if not, then there should be an earlier error indicating the causing issue.

[lauramurgatroyd]

Yes it was moving the detector after loading a config. I'll try again and see if i get the error again and post more details

[WYVERN2742]

@lauramurgatroyd Hi Laura, have you been able to re-create this issue with a config you can send me?