[5.2.2]Build dll with UnityEngine.UI.dll show error when the first time UnityEditor was complied

UI UGUI
1

2367925--160796--1.png
2367925--160796--1.png968×573 77.7 KB

i have try build with */UnityExtensions\Unity\GUISystem/UnityEngine.UI.dll
and */UnityExtensions\Unity\GUISystem\Standalone/UnityEngine.UI.dll
still error…but playing is ok.:hushed:

by the way, what differ between that 2 dlls?? under /GUISystem/

2

Same for me :frowning: