HTTP 404 error when activity does not exist

[rsjrny]

The activity is in the list of activities but when you select the activity you get a 404 error (page not found error). I have two instances of this and will leave my Garmin activities as they are so I can reproduce the error when testing the resolution.

I would like to display a warning message and return to processing.

Garmin Connect activity (1332/1500) [2646199078] 4 x 2:30 intervals
2018-04-23T10:26:38+20:00, 00:51:12, 6.453km
FIT data file already exists; skipping...
Garmin Connect activity (1333/1500) [2646171725] Zwift Run - Richmond
[ERROR] Failed to reach url https://connect.garmin.com/modern/proxy/activity-service/activity/2646171725, error: HTTP Error 404: Not Found
Traceback (most recent call last):
File "C:/Users/russl/Dropbox/PYCharmProjects/garmin-connect-export-1/gcexport.py", line 1105, in
main(sys.argv)
File "C:/Users/russl/Dropbox/PYCharmProjects/garmin-connect-export-1/gcexport.py", line 1013, in main
activity_details = http_req_as_string(URL_GC_ACTIVITY + str(actvty['activityId']))
File "C:/Users/russl/Dropbox/PYCharmProjects/garmin-connect-export-1/gcexport.py", line 273, in http_req_as_string
return http_req(url, post, headers).decode()
File "C:/Users/russl/Dropbox/PYCharmProjects/garmin-connect-export-1/gcexport.py", line 249, in http_req
response = OPENER.open(request, data=post)
File "C:\Program Files (x86)\Python37\lib\urllib\request.py", line 531, in open
response = meth(req, response)
File "C:\Program Files (x86)\Python37\lib\urllib\request.py", line 641, in http_response
'http', request, response, code, msg, hdrs)
File "C:\Program Files (x86)\Python37\lib\urllib\request.py", line 569, in error
return self._call_chain(*args)
File "C:\Program Files (x86)\Python37\lib\urllib\request.py", line 503, in _call_chain
result = func(*args)
File "C:\Program Files (x86)\Python37\lib\urllib\request.py", line 649, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 404: Not Found

Process finished with exit code 1

[rsjrny]

I have the missing activity condition fixed in rsjrny / garmin-connect-export-1. This fork also contains a new argument to add newly downloaded activities to a zipped archive file