According to the error message
"File dbgeng.dll does not exist in C:\WINN
T\system32. Please search microsoft.com for Debugging Tools For Windows, and either download it to
the default location, or download it to a custom location and set environment variable DEBUGGINGT
OOLSFORWINDOWS to the pathname of that location."
it is enough to install DTFW to get rid of that problem.
However installing the latest DTFW to the default path does not solve the problem