Error in Select 2D classes

Troubleshooting
1

Since we have updated to cryoSPARC 2.9.0 we get the following error when executing job “Select 2D classes”

Traceback (most recent call last):
File “cryosparc2_master/cryosparc2_compute/run.py”, line 78, in cryosparc2_compute.run.main (/home/installtest/deps_manage/cryosparc2_package/deploy/stage/cryosparc2_master/cryosparc2_compute/run.c:3954)
File “cryosparc2_compute/jobs/select2D/run.py”, line 156, in run
if params[‘selected_templates’]:
KeyError: ‘selected_templates’

Any help is appreciated.
Best,
Mohammad.

2

Hey @mazhabmt,

Is it possible if you can run the following commands on the command line?
cryosparcm restart
cryosparcm cli "refresh_job_types()"

3

I just tried and it did not help. Also, I got the following spawn errors when I executed the ‘cryosparcm restart’ command:

CryoSPARC is running.
Stopping cryosparc.
command_vis: stopped
webapp: stopped
Shut down
Starting cryoSPARC System master process…
CryoSPARC is not already running.
database: ERROR (spawn error)
command_core: ERROR (spawn error)
cryosparc command core startup complete.
command_vis: started
command_proxy: ERROR (spawn error)
webapp: started

CryoSPARC master started.
From this machine, access cryoSPARC at
http://localhost:39000
From other machines on the network, access cryoSPARC at
http://uhncryoem:39000

Startup can take several minutes. Point your browser to the address
and refresh until you see the cryoSPARC web interface.

4

Hi @mazhabmt,

Your update may have went wrong. First, try seeing if you can successfully restart cryoSPARC. Follow my earlier post for details on how to ensure zombie processes are not a possibility: Mongo connection refused

Then, try starting cryoSPARC again cryosparcm start

If that still doesn’t work, force-update your instance:
https://cryosparc.com/docs/reference/install/#forced-update

5

I just restarted the computer and everything is working again.
Thanks for your help with this.
Best,
M.