The type or namespace name `Web' does not exist in the namespace `System'

Questions & Answers
1

what is the problem?

using System; using System.Collections.Generic; using System.Text; using System.Net; using System.IO; using System.Web; using System.Web.Script.Serialization;

The type or namespace name `Web' does not exist in the namespace 'System'. Are you missing an assembly reference?

help me..

3

Check your player settings.

If you use restricted 2.0 (for web player) then namespaces with system access classes (potentially dangerous) are unavailable.

If you use unrestricted (for standalone) then everything supported by mono is available.

4

Put files in the Assets folder: mcs.rsp and csc.rsp and both have same content:

-r:System.Net.Http.dll -r:System.Web.dll

Then close and open Unity. Your VisualStudio project should have System.Web in the References now.

2

There is no System.Web in Unity.