3>C:\\Program Files (x86)\\MSBuild\\Microsoft.Cpp\\v4.0\\Microsoft.CppCommon.targets(113,5): error MSB3073: The command \"copy \"C:\\Users\\jlee\\Desktop\\10_IPG2.7_4
For anyone else that comes across this question my problem was that the target directory contained spaces i.e.
C:\Users\Administrator\Documents\Visual Studio 2017\projects\blah
So for me the solution was to wrap $(TargetDir) in double quotes i.e.
copy ..\resources\* "$(TargetDir)" /Y