Origin Ver. and Service Release (Select Help-->About Origin): Operating System: I used to do multiple peak fit but recently I cannot do it anymore when I try, I always get this error message: Unable to establish autoupdate. Recalculate mode is set to NONE. and invalid indexing into a collection Origin C error (24) in X-Function code. what can I do? i've tried everything thanks Mattia
Which tool are you using? Multiple Peaks Fit tool or Peak Analyzer?
If you are using Peak Analyzer, please do NOT output the result to a worksheet that has an existed report. If this is not your case, I am afraid that you need to repair Origin with the installer.