How to solve "There was a problem sending the command to the program."

Hi,

I installed MATLAB version 2021b on Windows 7 Service Pack 1 (64-bits).

when I try to double clicking an MATLAB m-file and open it, system gives the error "There was a problem sending the command to the program."

How to solve "There was a problem sending the command to the program."?

Thanks.

[Benjamin Thompson]

Does MATLAB open from the Start Menu? If so, you can navigate to the location of your M file in MATLAB and edit the M file in MATLAB to open it.

Answer 1

[Naga]

This is a file association problem for MATLAB on Windows. A potential solution is the "MATLAB File Association Fix" available on File Exchange. Users report it resolves the issue by writing a Windows registry file. You can try it here:

https://www.mathworks.com/matlabcentral/fileexchange/51165-matlab-file-association-fix

If this doesn't work, consider these alternatives:

Solutions for MATLAB R2014a and earlier:

1. Launch MATLAB and try opening the MATLAB code files from the MATLAB GUI.

2. Follow the below steps:

- Right-click on the MATLAB icon.

- Click on properties.

- Go to the compatibility tab and select “Run this program in compatibility mode” and then select the appropriate OS.

3. Upgrade to a version more recent than R2014b.

For MATLAB R2014b and later:

Manually select the MATLAB executable in the bin subfolder as the executable to run when selecting .m files. This has been reported on R2015b for Windows 10.