Although fxcore2.dll exists in the bin\debug directory along with all other 13 dlls and it has been properly referenced in the project, VS compiler still can not find it. The strange thing is that I have another project with exactly the same settings from .NET framework version to Platform target of "Any CPU" which runs smoothly. In the latter project sometimes the "fxcore2.dll" reference shows a question mark meaning it hasn't been found but nevertheless the app runs!
Any help would be much appreciated.