Corrupted download or incomplete data. Fix: Verify the checksum. In Terminal: shasum -a 1 /path/to/your/Xcode_11.3.1.xip Compare the output to the official hash. If mismatch, re-download.
: Xcode 11.3.1 is the final stable release compatible with macOS Mojave. For those with older hardware or a deep-seated dislike of Catalina’s security prompts, this is the terminal update. App Store Submissions xcode 11.3.1 download dmg
Technical Report: Xcode 11.3.1 Download and Specifications April 23, 2026 Subject: Xcode 11.3.1 Installation and Technical Overview Corrupted download or incomplete data