Coding Labs Troubleshooting Create Activities > Coding Labs Troubleshooting Resolve common issues with Coding Labs. Coding Lab is Missing Tools or Running SlowlyIf your lab opens without certain tools, or runs slowly, you might need to rebuild your codespace to get the latest Coding Labs updates. Can't View Student CodeIf you need to review your students' Coding Labs code for practice or unsubmitted assignments, you can ask them to either add you as a contributor in GitHub or download their workspace as a .zip file and share it with you. Can't View Instructions or Submit LabYou cannot work on your lab because the Companion tab is not displayed. GitHub NotificationsWhen you run code in your coding lab, you receive an email from GitHub. More information Coding Labs