Assets\Scripts\Plugins\Utilities\SerializableDictionary (azix)\Editor\SerializableDictionaryPropertyDrawer.cs(12,53): error CS0246: The type or namespace name 'PropertyDrawer' could not be found (are you missing a using directive or an assembly reference?)

[laurentopia]

this happens when compiling to IL2CPP in .net 4 mode

[fangjunzhou]

having the same problem

[fangjunzhou]

this happens when compiling to IL2CPP in .net 4 mode

Hello, I've just found the solution to this problem. Since most of my project make use of Unity Package Manager, I made a Unity Package of this repository manually.
However, the asmdef file I wrote is wrong. The asmdef should target at editor platform. Since the Unity build version should not include any editor scripts. If you are using asmdef, you should also do this. Or you should add #if UNITY_EDITOR