I am using IDL/ENVI on a 64 bit Windows 7 machine. Currently, I cannot save files in ENVI using 'File>Save As'. I get an error dialog box stating 'Expression must be a scalar in this context: PREVFILE.' It has worked in the past, but stopped working and restarting the computer did not fix the problem. Is there a corrupt file or setting I can easily fix or is a complete uninstall and reinstall required, or another fix needed? Thanks.
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