Error - 1543309121 c:\Websites\WebticketsTest\WebticketsSite\v2\eventItemPanel.ascx(19): error CS0012: The type 'System.Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'.