Unable to load clrcompression.dll when debugging on WM10

Develop for Windows 10 Mobile becomes always more hard. I updated an App in the Store and in the previous version I debugged it on Windows 10 Mobile without problem (I used a Lumia 930). But now I continue to get this error :

System.DllNotFoundException: Unable to load DLL ‘clrcompression.dll’: The specified module could not be found. (Exception from HRESULT: 0x8007007E)

After many tests the solution has been to flag “Compile with .NET Native tool chain” in the Build section of Project properties. A fix to remember.