Error with MD variable for runKrasTrain (Example 4 in User Guide)

[edelaserna]

Hi! I am trying to go through Example 4 in the User Guide to learn how to train my own SVM. I've been consistently running into the same error when running runKrasTrain.m:

Cell 1: Cell1
The provided path is not the path to a Matlab variable
Unrecognized function or variable 'MD'.

Error in clickOnProtrusions (line 96)
sanityCheck(MD);

Error in runKrasTrain (line 60)
clickOnProtrusions(p)

For some reason, clickOnProtrusions is not recognizing the MD variable in my workspace - it keeps getting stuck on lines 90-96 of clickonProtrusions.m when it tries to load the MovieData object and then run sanityCheck(MD). When I type in MD in the command line, Matlab registers that MD exists. I've checked the directory path in the MD variable and made sure it matches what I inputted for the analysisDirectory variable in line 38 of runKrasTrain.m.

I'm quite stumped on how to troubleshoot and would appreciate any insight! Thank you so much!