- “Clio Launcher can’t be opened” warning, when opening Launcher in macOS Catalina
- Full message: "Clio Launcher can't be opened because Apple cannot check it for malicious software"
- Clio Launcher
Clio Launcher may not be up to date, causing it to not work with the Catalina update to OSX.
Update Clio Launcher to the latest version (see here), then try again.