I am new to brainstorm and I would like to study the sLORETA through brainstorm. Since I had already performed the basic data analysis in EEGLAB/ERPLAB, I would like to import the averaged ERP file using the option Import MEG/EEG for *erp file. But I am getting an error pop up. It would be great help if you could guide me with the sequential procedure for brainstorm analysis.
I guess you imported ERPLAB files that did not have any sensor locations. This caused the channel data structure to be incorrectly defined. I tried to fix this but with this commit: Bugfix: Import ERPLAB file with no electrodes positions · brainstorm-tools/brainstorm3@4fc7058 · GitHub
Please update Brainstorm and try again.