How can I resolve the "malformed URL" error when clicking "pull / push" in the "Source Control" tab in MATLAB R2021a?

When clicking "pull / push" in the "Source Control" tab in R2021a, I get the following error message

Unable to pull in changes:
malformed URL <WRONG_URL>:80
(Error code=-1, Error class = 12)  

and <WRONG_URL> is not the remote URL of my Git repository.

This workflow used to work in R2020b. How can I resolve this issue?

Answer 1

[MathWorks Support Team]

As of R2021a, we use a different library for Git. Its behavior matches command-line Git more closely and it will look up environment variables and items in the Git configuration. This error results from Git trying to communicate with the wrong remote URL. Refer to the steps below to resolve the error.

1. Check the environment variables

One reason for this error may be that an environment variable such as HTTP_PROXY / HTTPS_PROXY is set, so a good first step is to check the environment variables. You can check all environment variables by executing the following in the Windows Command Prompt:

set

Alternatively, you can check, modify, or delete environment variables in the Advanced System Settings. To open Advanced System Settings, search for it in the Start Menu. Then, you can access the list of environment variables in your system by clicking on the "Environment Variables..." button.

Deleting these environment variables should resolve the error.

2. Check the git config file

If the above environment variables are not set, "remote.origin.proxy" could be set in the git config file causing the same issue. Note that "remote.origin.proxy" will cause such an issue even if it is set equal to nothing. Running the following might resolve the error in this case: 

git config --global --unset remote.origin.proxy 

3. Set the NO_PROXY environment variable

In case some of the other applications you are using require the HTTP_PROXY / HTTPS_PROXY environment variables, you can set a new environment variable NO_PROXY to:

github.com,gitlab.com

You can set this environment variable in the "Environment Variables" window of the Advanced System Settings.