HttpUtility does not exist in the current context

Question

I get this error when compiling a C  application  Looks like a trivial error  but I can t get around it   My setup is Windows 7 64 bit  Visual-Studio 2010 C  express B2Rel   I added a reference to System Web dll located at C  Program Files  x86  Reference Assemblies Microsoft Framework  NETFramework v4 0  but it has a yellow exclamation symbol and I still get the above error  I also have the using System Web declaration   What am I doing wrong     Update  After getting the prompt answer pointing me at the root cause  I searched a bit in Google to where it states that System Web dll is for the full framework  I did not find such a reference  For newbies like me  this blog summarizes the difference between the frameworks  client and full  nicely  I could not find a spot that says whether a certain Dll is supported in the client framework or not  I guess the exclamation mark in Visual Studio should be the first signal

User · Answer

Agrega System web a las referencias del proyecto    Edit   According to Google Translate  this translates to      Add System Web to the project references

User · Answer

You need to add the System Web reference     Right click the  Reference  in the Solution Explorer Choose  Add Reference  Check the   NET  tab is selected  Search for  and add  System Web

User · Answer

In order to resolve this  Kindly go to the below path      Project-- Properties-- Application-- TargetFramework      and change the Framework to   NET Framework 4        Once you do this  the project will close and re-open       This should solve the error     but for some reason  Karan Modi s answer does not      next right-click the references tab in the solution explorer and choose add reference   choose  System Web    declaring the namespace directly by  using System Web   doesnt seems to be enough   you have to add it to the solution explorer   i cant understand why - which is no surprise because i am a cobol programmer

User · Answer

It worked for by following  process   Add Reference   system net system web   also  include the namespace  using system net using system web

User · Answer

In order to resolve this  Kindly go to the below path  Project-- Properties-- Application-- TargetFramework  and change the Framework to   NET Framework 4    Once you do this  the project will close and re-open   This should solve the error

User · Answer

Adding a reference to Sysem Web Dll did it for me

User · Answer

I had the same problem what I did  I copied web dll from Microsoft NET framework  then paste in root of project  then add dll refrence to app  it worked

User · Answer

After following the answers above   and did     Project -  Properties -  Application -  Target Framework -  select     Net Framework 4    It still didn t work until I went to  Project - gt  Add Reference  And selected System web  And everything worked link a charm

User · Answer

You re probably targeting the Client Profile  in which System Web dll is not available   You can target the full framework in project s Properties

User · Answer

SLaks has the right answer    but let me be a bit more specific for people  like me  who are annoyed by this and can t find it right away    Project -  Properties -  Application -  Target Framework -  select   Net Framework 4   the project will then save and reload

[c#] HttpUtility does not exist in the current context

Examples related to c#

Examples related to visual-studio-2010