If this error occurs when attempting to start MATLAB, there may be an issue with the MathWorks Service Host.
To resolve this, please try resetting your local credentials with the following steps:
- Shutdown any running MATLABs, MathWorksServiceHost and MATLABConnector processes. If you don't know how to shutdown the ServiceHost or Connector, please view the URL to reinstall the ServiceHost from below.
- Delete your credentials storage folder, which can be found here:
Linux - ~/.matlab/credentials
Windows - %APPDATA%\MathWorks\credentials
macOS - ~/Library/Application Support/MathWorks/credentials
- Then, try running MATLAB again.
If this does not work, perform a clean reinstall of the MathWorks Service Host:
How do I uninstall and reinstall MathWorks Service Host?
If this error occurs when attempting to start up MATLAB Connector on macOS, there may be an issue with the secrets file contained with the credentials directory, which may have been deleted or modified.
To resolve this, perform the following:
- Delete the following directory: /Users/$USER/Library/Application Support/MathWorks/credentials
- Delete the "MathWorks Key" key found in your login keychain in the Keychain Access app under Utilities
- Restart MATLAB Connector