Troubleshooting upgradeWizard.log Error

Symptom: When selecting the Upgrade Wizard, the following error message appears:

./upgradeWizard.log could not be created/written to. Please fix permissions
on your SugarCRM directory.

Cause: The root directory of the SugarCRM instance is not writable.

Solution: Ensure that the root directory of the SugarCRM instance permissions include read, write and execute. For Windows installations, ensure that inheritable permissions are allowed. To change permissions on Linux installations, run the command:

chmod -R 660 <Sugar root directory path>

For more information on the permissions required for SugarCRM, see the appropriate installation guide on our Product Documentation page.