You need to open the Steam menu > Preferences > Downloads, click on Steam Library folders, right-click your folder, select Repair Library Folder, then click Yes and wait for it to repair Steam.
Please confirm your network connection and try again," connect your Mac to a mobile hotspot, log in again after Steam finishes updating, then switch to Wi-Fi. If the error indicates no internet connection or the message says that "Steam needs to be online to update.rm -r ~/Library/Application\ Support/Steam/Steam.AppBundle If it asks you to delete or keep local game data, choose Keep. Open the built-in TerminalĀ and execute this command.Since it could be a system glitch rendering Steam not opening on macOS Monterey/Big Sur/Catalina, let's run some basic troubleshooting tips first to rule it out. What to do when Steam won't open on MacBook If you can't open Steam on Mac persistently, there are likely corrupted data, network issues, incorrect date & time, apps interfering with Steam, or system glitches. With Steam's international popularity, it may not work properly when its server is overwhelmed by the requests it gets. Fix Steam_osx is damaged and can't be opened.
Fix Steam issue - An error occurred while updating no internet connection Steam stuck on loading screen (shows only two words Steam and Valve) This post will first discuss why Steam won't launch on Mac, then tell you the solutions. Steam may bounce but refuse to open or pops up an error message such as "an error occurred while updating," "Steam_osx is damaged and can't be opened," " Steam quit unexpectedly", etc. The issue can happen when you are installing Steam for MacĀ or on an installed Steam with updated macOS as many are complaining about Steam not opening on macOS Monterey or Big Sur. It's frustrating to find that Steam won't open on MacBook when you are in the mood for playing games.
Steam Won't Open on MacBook with Monterey/Big Sur