NxOgre compilation problem

Hello everyone, Thanks for the other topic, you helped me a lot But this time I have a problem with compilling NxOgre, I just opened the vc9 files in msvc folder and try to compile but I got those errors :

C:\Program Files\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppCommon.targets(113,5): error MSB3073: La commande "mkdir "C:\NxOgre\build\msvc\..\..\sdk"
1>C:\Program Files\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppCommon.targets(113,5): error MSB3073: copy "C:\NxOgre\build\msvc\Release\NxOgre.dll" "C:\NxOgre\build\msvc\..\..\sdk\"
1>C:\Program Files\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppCommon.targets(113,5): error MSB3073: copy "C:\NxOgre\build\msvc\Release\NxOgre.lib" "C:\NxOgre\build\msvc\..\..\sdk\"
1>C:\Program Files\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppCommon.targets(113,5): error MSB3073: copy "C:\NxOgre\build\msvc\..\source\NxOgre*.h" "C:\NxOgre\build\msvc\..\..\sdk\"
1>C:\Program Files\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppCommon.targets(113,5): error MSB3073: copy "C:\NxOgre\build\msvc\source\NxOgre*.h" "C:\NxOgre\build\msvc\..\..\sdk\"
1>C:\Program Files\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppCommon.targets(113,5): error MSB3073:
1>C:\Program Files\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppCommon.targets(113,5): error MSB3073: mkdir "C:\NxOgre\build\msvc\..\..\sdk\bml"

I just don't understand what is the problem, I use visual c++ 2010, I installed the SDK Nvidia and the SDK for physX (I asked for an account on their site). Also Ogre is running with no errors.

Thanks very much .

Looks like a custom build step is failing. Check your project properties for custom build steps and edit if needed.