# Can't Install Unreal on My MacBookAir M1 Error IS-IN-FC02 **URL:** \ **Category:** Getting Started & Setup\ **Tags:** unreal-engine\ **Created:** [May 26, 2026, 1:54pm UTC](https://forums.unrealengine.com/t/cant-install-unreal-on-my-macbookair-m1-error-is-in-fc02/2724515 "2026-05-26T13:54:38Z")\ **Posts on this page:** 1\ **Showing post:** 7
**Author:** ![Hashiba](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/hashiba/32/1184100_2.png) [@Hashiba](https://forums.unrealengine.com/u/Hashiba)\ **Post date:** [June 19, 2026, 7:53pm UTC](https://forums.unrealengine.com/t/cant-install-unreal-on-my-macbookair-m1-error-is-in-fc02/2724515/7 "2026-06-19T19:53:57Z")
Hi, I had the same problem and finally fixed it, I’ve made a detailed post here: [Fixed: Unreal Engine 5.4.4 install failed around 70%, IS-IN-FC02, Xcode not detected, then crash on MacBook Air M1 / macOS Sequoia](https://forums.unrealengine.com/t/fixed-unreal-engine-5-4-4-install-failed-around-70-is-in-fc02-xcode-not-detected-then-crash-on-macbook-air-m1-macos-sequoia/2729988) So if I had to install Unreal Engine again on an Apple Silicon Mac, I would do this: ```bash # Make sure macOS developer tools point to full Xcode, not only Command Line Tools sudo xcode-select -s /Applications/Xcode.app/Contents/Developer # Accept the Xcode license sudo xcodebuild -license # Install Rosetta, needed by some Intel helper binaries softwareupdate --install-rosetta --agree-to-license # Optional but useful if Epic install fails around 70% with "file corruption" which is our exact case sudo sysctl -w kern.maxfiles=131072 kern.maxfilesperproc=65536 ulimit -S -n 65536 && open -a "Epic Games Launcher" ``` Then resume the Unreal Engine installation from the Epic Games Launcher. It took me a while to figure it out, I hope it works for you too! --- _[View the full topic](https://forums.unrealengine.com/t/cant-install-unreal-on-my-macbookair-m1-error-is-in-fc02/2724515)._