Unable to load DLL QT with C#

[resurrezione]

Hello all,

I have this code QT in "mydll.dll"

__declspec(dllexport) void Test()
{
  qDebug() << "messaggio da DLL";
}

If i use this code with a program c#, i get the following error:
Unable to load DLL "mydll" The specified module could not be found. (Exception from HRESULT: 0x8007007E)
Together with the dll "mydll" I also copied Qt5Cored.dll

with this code
__declspec(dllexport) void Test()
{
// qDebug() << "messaggio da DLL";
}

the program works;

Thanks in advance.

[NicuPopescu]

check the dll's dependencies with Dependency Walker

[resurrezione]

Solved.
missing icudt51.dll
thanks