Object reference not set to an instance of an object

[zapper59]

There's no documentation on how to use PTMCli.exe so I'm flying blind here, but when I try the following I get an error:

>& 'C:\Program Files\ProtocolTestManager\PTMCli.exe' -p C:\Users\administrator\onetest.ptm -s -r C:\results.json -f json -t C:\cygwin64\home\administrator\WindowsProtocolTestSuites\drop\TestSuites\FileServer\Bin\CommonTestSuite.deployment.ptfconfig
ERROR:
Object reference not set to an instance of an object.

[zapper59]

This is using powershell