: You must sign in with your Apple ID ; a paid developer membership is not required to download older versions.
macOS High Sierra 10.13.6 is an older operating system, but many developers still use it on legacy Mac hardware. Setting up a development environment on this version requires a specific version of Xcode. Newer versions of Xcode will not install or run on High Sierra.
The download began. Estimated time: 4 hours.
Open the Command_Line_Tools_for_Xcode_10.1.dmg file you downloaded. Inside, run the .pkg installer. Follow the on-screen prompts.
You will need to sign in with your Apple ID. A paid developer account is not required for older downloads, just a free one. Search for Xcode 10.1: In the search bar, type Xcode 10.1 .
The downloaded file will be named something like Xcode_10.1.xip . Double-click it in Finder, and macOS will automatically expand it into Xcode.app . This process can take several minutes, as the file needs to be verified and extracted.
However, you are not out of luck. The absolute maximum version of Xcode officially supported by macOS High Sierra 10.13.6 is . The Master Plan: What You Need to Know
