Hi, I am leaving a message to get help.
I want to import 2d particles from cryosparc to relion4. However, the same error message continues to appear.
observationmodel::getBoxSize: box sizes not available. Make sure particle images are available before converting/importing STAR files from earlier versions of RELION.
In the photo above, mrc is the version before being changed to mrcs.
I would appreciate it if you could tell me what I am doing wrong and what I need to fix.
Best,