Created Unassigned: Missing DLLs on new project [65]

When I create the ScriptEngine i got

System.TypeLoadException was unhandled _HResult=-2146233054
_message=Cannot load V8 interface assembly; verify that the following files are installed with your application: ClearScriptV8-32.dll, ClearScriptV8-64.dll, v8-ia32.dll, v8-x64.dll

I've posted more detauls for this issue also on stackoverflow

see: http://stackoverflow.com/questions/27981220/missing-clearscriptv8-64-dll-v8-ia32-dll-v8-x64-dll

Any advice?