MATLAB 2019a cannot add to search path

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Ryan Sosovec 2020-1-30

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/502826-matlab-2019a-cannot-add-to-search-path

评论： Ryan Sosovec 2020-2-13

I am currently unable to add a directory to the MATLAB2019a search path (Windows install). This problem is new. I had been able to use the addpath() function in 2019a without issue until recently when it suddendly stopped working. I also have MATLAB 2018b installed on the same Windows machine and I have no problem adding to the search path in that version of SW.

Procedure:

Create a directory called '.\fname\'

Open MATLAB2019a

>>pathtool (leave GUI open)

>>addpath('.\fname\')

>>which userpath = C:\Program Files\MATLAB\R2019a\toolbox\local\userpath.m

I can check in the pathtool GUI and I can see that the search path does not get added. I cannot add the path from the GUI either (nothing happens). This is resulting in code I have written failing since it cannot access functions outside the working directory or the list stored in C:\Program Files\MATLAB\R2019a\toolbox\local\userpath.m. When I run this same procedure in MATLAB 2018b on the same machine the search path is added.

This problem appears to be related to my system because I also have MATLAB 2019a installed on a remote Windows server. I am able to add to the MATLAB search path without issue on that machine. I have attempted MATLAB restoredefaultpath and rehash but neither resolved my issue.