使用Git作为版本控制的UE4团队成员版本不同是否会引发问题？

Absolutely, mixing different Unreal Engine 4 versions while collaborating with Git is going to create avoidable headaches for your team—let’s break down the key issues and how to mitigate them.

Core Problems You’ll Face #

• Asset & Project Compatibility Breaks: When a low-version project is opened in a newer UE4 build, the engine prompts you to create a copy for a critical reason. That copy will update the .uproject file’s engine version tag, and any assets saved in the newer version will use a format that older UE4 builds can’t read. If someone commits these updated files to Git, teammates on older versions won’t be able to open the project or assets without crashing or error messages.
• Unresolvable Git Conflicts: UE4 assets (.uasset, .umap) are binary files that Git can’t meaningfully merge. Throw version differences into the mix, and even small changes to the same asset across versions will result in conflicts that are nearly impossible to fix manually—you’ll often have to choose one version or the other, losing work in the process.
• Auto-Generated File Chaos: Different UE4 versions generate unique files in folders like Binaries, Intermediate, and Saved. If your team’s .gitignore isn’t properly configured, these files might get committed, leading to build errors when teammates pull the code (their engine won’t recognize the generated files from a different version).

Steps to Fix This #

• Mandate a Single UE4 Version: This is the most reliable solution. Pick a stable, official UE4 release (avoid preview builds) and require everyone on the team to use it. If you need to upgrade the engine, do it as a coordinated team effort:
  1. Have one team member make a full backup of the project.
  2. Upgrade the project to the new UE4 version, test thoroughly to fix any compatibility issues.
  3. Push the upgraded project to a dedicated branch first, get team sign-off, then merge to main.
  4. All teammates upgrade their UE4 installations before pulling the updated code.
• Lock Down Your .gitignore: Ensure you’re ignoring all UE4 auto-generated folders and files. A standard UE4 .gitignore should include:

  Binaries/
  Intermediate/
  Saved/
  *.sln
  *.suo
  *.user
  *.userosscache
  *.sln.docstates
  

  This prevents version-specific generated files from cluttering your repo and causing unnecessary conflicts.
• Avoid Cross-Version Asset Edits: If for some reason you can’t immediately unify versions (not recommended), strictly prohibit editing the same assets across different UE4 builds. Any changes made in a newer version should be migrated back to the base project version using UE4’s Project Migration tool before being committed to Git.

At the end of the day, the less version variance you have in your team, the smoother your Git collaboration will be. Unreal Engine isn’t designed to handle cross-version project workflows seamlessly, so unifying on a single build is always the best bet.

内容的提问来源于stack exchange，提问作者Achraf Garai