Error building Player because scripts had compiler errors. I need some help

My project ran into a sudden kinda anoying problem. I can no longer build my game, and I have no idea how this came up and how to fix it.

The error:

Error building Player because scripts had compiler errors
UnityEditor.HostView:OnGUI()

Error in file:
E:/BuildAgent/work/71ca6fec1b41cc30/Editor/Mono/BuildPlayerWindow.cs at line: 289

I get this error in both standalone and web build, and switching between api compatibility levels does not change anything (a other forum topic about this problem suggested this as a solution).

Is anyone able to help me out?

Is this the only one error (don’t believe it)
Look for other errors in console, or drop Editor.log here

Hey Alexey,

No you are right, there are more errors and the require fixing ofcourse ^^. Yet the where there yesterday as well and I could build without a problem, and nothing changed in the scripts yet.
What I did not notice because of that, where 3 new errors… -.-

What did change apparently is that the immage effects where moved to a different folder in the project. I gues they did not like them there or something o.O
Returned them to their original location and the project now builds on all settings without a single problem.

So the problem whas fully because we where to messy with the project folder :\

Thank you for the quick reply by the way!

my solution was :

rename CreatePrefabFromSelected.cs to CreatePrefabFromSelected.bak and restart unity, thats all.

I don´t have that cs file in my project :frowning: