Why do I sometimes get the error "Reference to non-existent field 'matlab'." when I try to open or edit a .m file?

This does not always happen, but when it does I can't seem to open any .m files for editing. Clicking on files in the current folder directory also gives the same error in a pop-up. I am running R2017b on a ubuntu 16.04 LTS.

Answer 1

[Sruthi Geetha]

dbstop if all error

Then generate the error and see where it's being called.

E = lasterror

reveals the location, which function throws the error.

Does the error appear, if you exclude all user-defined functions from the PATH? If not, one of your functions shadows a function, which is called during saving. Also, try deleting/renaming your preferences directory.