Keep receiving errors when running the PREPpipeline

[kevinkhso]

I have set the path in Matlab to EEGlab and both the VisLab-EEG-Clean-Tools and PrepPipeline before using the function. According to the report, the PREP pipeline has failed at the step of line noise removal with the following error:

prepPipeline failed removeLineNoise: Error using testSignificantFrequencies Undefined function 'finv' for input arguments of type 'double'. Line noise method: clean

May I ask how to solve the problem? Thank you so much.