I tried to add an Icon to my WPF project by edition the Application Properties page but since I added the Icon I only get this error while compiling:
CVTRES : fatal error CVT1103: cannot read file
vbc : error BC31019: Unable to write to output file 'D:\Development\Visual Studio 2005\JCsTools.VocabularyTrainer\JCsTools.VocabularyTrainer.UX\obj\Debug\JCsTools.VocabularyTrainer.UX.exe': System Error &H80070714&
You need to declare the icon file as an application Resource or loose Content. Can you verify that you have an entry like this in your project file (the .csproj or .vbproj):
<Resource Include="Resources\MyAppIcon.ico" />
This approach works for me.