Find your problem
Find what you see in the left column, then follow the link on the right. Every row goes to a page that already describes it. If yours is not here, use the Report a problem link on the app's page (when the repository has an issue tracker), or open an issue in this site's repository if the problem is with the site.
An app on your computer
| You see | Go to |
|---|---|
| "Windows protected your PC" when you run an installer | Install on Windows: choose More info, then Run anyway |
macOS refuses to open the .pkg file |
Install on a Mac: the Open Anyway button in Privacy & Security |
| An installer for Linux does not start | Install on Linux |
| The app still appears in Windows' list of installed apps after uninstalling | Troubleshooting an installed app |
| JupyterLab does not start and Windows reports a certificate (ASN.1) error | Troubleshooting an installed app |
| The app opened and you do not know what to do | Open and use an app and Use notebooks after installation |
An app in napari, Fiji or QuPath
Each guide ends with a section called If something does not work: napari, Fiji and QuPath.
Your own app
| You see | Go to |
|---|---|
| A workflow run failed in the Actions tab of your repository | Check the status of GitHub workflows |
| A problem while setting up your repository | Troubleshooting repository setup |