Web.config transformation: Unrecognized attribute 'xmlns:xdt'. Note that attribute names are case-sensitive

Question

I\'m getting this strange intermitent bug in a MVC 3.0 project When I build the project sometimes I get the following error message:

Unrecognized attr

Answer 1

There is another workaround from Microsoft Team. See details here.

Just copy-paste this snippet into your .csproj or .vbproj file:

  <_EnableCleanOnBuildForMvcViews Condition=" '$(_EnableCleanOnBuildForMvcViews)'=='' ">true


  
    <_TempWebConfigToDelete Include="$(BaseIntermediateOutputPath)**\Package\**\*" />
    <_TempWebConfigToDelete Include="$(BaseIntermediateOutputPath)**\TransformWebConfig\**\*" />
    <_TempWebConfigToDelete Include="$(BaseIntermediateOutputPath)**\CSAutoParameterize\**\*" />
    <_TempWebConfigToDelete Include="$(BaseIntermediateOutputPath)**\TempPE\**\*" />
  
  

This will automate the process of cleaning 'obj' folder using Build Targets.