Error 0234 in Unity 2D when building a program, how to fix it?

Question

Unity

I did a 2D project in Unity. VisualStudio showed no errors, the game in the editor works perfectly. Tried to build for Windows but got the following errors:

- Assets\Scripts\PlayerMovement.cs(5,19): error CS0234: The type or namespace name 'WSA' does not exist in the namespace 'UnityEngine' (are you missing an assembly reference?)

- Assets\Scripts\SpawnMovePoint.cs(4,19): error CS0234: The type or namespace name 'Build' does not exist in the namespace 'UnityEditor' (are you missing an assembly reference?)

- Error building Player because scripts had compiler errors

Can you tell me what the problem is?