QQ App Startup Issue on macOS Big Sur The system might not allow to run QQ app on MacOS Big Sur To address this problem, Click “OK” and follow these stepsGo to the “Utilities”Execute the following command in the “Terminal” app as follows:xcode-select –install (if it’s not installed then a pop-up will appear, follow the instructions and complete installation)sudo codesign –force –deep –sign – /Applications/QQ.app You can now launch your application.Demo link:Big Sur Demo How can we help? A premium WordPress theme with an integrated Knowledge Base, providing 24/7 community-based support. Send