PSB issue: How to export Sprites from Unity (and update Sprite-References) ?

Are you properly source-controlling and maintaining the assigned GUIDs contained in the original metafiles??

AFAIK it should just stay linked, unless Unity has a bug or the import process has substantively changed. Here is why:

Some info about Missing script warnings, GUIDs, renaming GUIDs, etc:

EVERYTHING in Unity is connected to the above GUID, which is stored ONLY in the metafile.

It is super-easy to inadvertently change it by renaming outside of Unity. Don’t do that. Instead:

  • close Visual Studio (important!)
  • rename the file(s) in Unity
  • in Unity do Assets → Open C# Project to reopen Visual Studio
  • now rename the actual classes, and MAKE SURE THE FILE NAMES DO NOT CHANGE!

If you are NOT using source control while you do this, renaming files is an EXTREMELY dangerous process. Use source control at all times so that you can trivially revert if you miss a critical step and damage your project.

If you are not already doing so, please consider using proper industrial-grade enterprise-qualified source control in order to guard and protect your hard-earned work.

Personally I use git (completely outside of Unity) because it is free and there are tons of tutorials out there to help you set it up as well as free places to host your repo (BitBucket, Github, Gitlab, etc.).

You can also push git repositories to other drives: thumb drives, USB drives, network drives, etc., effectively putting a complete copy of the repository there.

As far as configuring Unity to play nice with git, keep this in mind:

Here’s how I use git in one of my games, Jetpack Kurt:

Using fine-grained source control as you work to refine your engineering:

Share/Sharing source code between projects:

Setting up an appropriate .gitignore file for Unity3D:

Generally setting Unity up (includes above .gitignore concepts):

It is only simple economics that you must expend as much effort into backing it up as you feel the work is worth in the first place.

“Use source control or you will be really sad sooner or later.” - StarManta on the Unity3D forum boards

1 Like