Building the MPOS solution can fail with:
"10.0.10xxx.0" is not a supported value for TargetPlatformVersion.
Please change it on the Project Property page.
It reads like a project configuration issue, but the actual cause — confirmed with a colleague hitting the same error — is that the required Windows SDK version simply isn't installed on the build machine.
The fix
Install the Windows SDK version referenced in the error message, using the version-specific link from Microsoft:
For example, if the error names 10.0.10586.0, that's the SDK version to install.