According to your screenshot, I think the problem here is due to an unnecessary newline character in the command you past in the PowerShell terminal due to copying.
Please, note: we recommend not to build your Elements in the SAMSON Debug folders - you should use a dedicated folder to develop your SAMSON Elements
If you have -DQT5_CMAKE_INCLUDE_DIR environment variable defined in your system you can compile for Visual Studio 2017 like this:
cmake -DSAMSON_SDK_PATH="C:\Program Files\NANO-D\SDK\0.7.0" -G"Visual Studio 15 Win64" ..
else like this:
cmake -DSAMSON_SDK_PATH="C:\Program Files\NANO-D\SDK\0.7.0" -G"Visual Studio 15 Win64" -DQT5_CMAKE_INCLUDE_DIR="C:\Qt\5.9.3\msvc2017_64\lib\cmake" ..
You can copy the command from here.
You can also check whether the cmake is defined in your system by e.g. checking its version number:
My CMakeLists for the Python Bindings version is like you posted above, so I'm not linking in the debug mode. My other branches don't have any reference to Python in the CMakeLists, so they are not linking neither.
In case someone else is in the same situation. I just finished porting our plugin to 0.7.0 and the only changes I had to make were in SAMSON::getProxy (the arguments have changed), and the call functions of the proxies (arguments of SBValue type used to be pointers, now they are passed by reference).
We have still to test it to make sure all functionality is working, but so far it seems that was it.