Error installing Matlab toolbox "not a valid toolbox file"

Why do I get "toolbox cannot be installed because it is not a valid toolbox file" when trying to install with a mltbx file? Using Matlab R2018b trying to install Machine Vision Toolbox

[Star Strider]

If I remember correctly, the MATLAB Installer will install it correctly for you. Go to your MathWorks Account page and launch the Installer from there.

[Dylan Kennedy]

The problem I was having was the toolbox I need isn't on the list, I installed them from here http://petercorke.com/wordpress/toolboxes/machine-vision-toolbox. I thought I could open the mltbx files in matlab and install them that way but it wasn't working for me when I tried.

[Jonas Kudsk Kristensen]

Did you find any solution?

I'm having the same problem as you.

[Nick Patterson]

One of my users is now having this same problem. 200+ people can install the toolbox using the *.mltbx file, but he keeps getting an error "Toolbox cannot be installed because it is not a valid toolbox file". However, the file is valid, so there's another issue.

[Johannes Ziegler]

We have the same issue on a customer environment with MATLAB R2019b. Any hints what is the reason for this error? Files are being copied to the Add-Ons installation folder during installation process but finally this error occurs. The MATLAB log files doesn't contain any hints or errors.

Answer 1

[Mustafa Serif Çelenk]

Be sure you download the correct file. You should download the file from this adress: https://petercorke.com/toolboxes/machine-vision-toolbox/ . By doing this i solved my problem.