Whether your project originally used MonoScript source code–attached components or DLL–attached components, you can generate a GUID mapping table between MonoScript source code and DLL, and then use the GUID mapping table to replace component GUIDs in .prefab or .unity files.
| Install via Git URL |
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Add https://github.com/michael811125/MonoScriptGuidReplacer.git to the Package Manager |
Right-click → Menu → MonoScript GUID Replacer
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Export MonoScript Source Code GUID Mapping Table
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Export DLL GUID Mapping Table
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Start Replacement
Originally Using MonoScript MonoScript Removed (Missing) Replaced with DLL 
Recommended: Unity 2022.3.59f1 (LTS) or higher — Unity Download Archive
This library is released under the MIT License.