How to install Microsoft.Exchange.WebServices.2.2.nupkg using GACUTIL in Windows 2019

I am trying to install this nuget package using the gacutil -i command. So i tried below steps :

1. From command propmt run as administrator I go to the gacutil directory which is c:\Program Files(x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.8 Tools\
2. I then ran the command gacutil -i "path\of\my\ Microsoft.Exchange.WebServices.2.2.nupkg

But after doing so, I am getting the error :"Failure adding assembly to the cache: The filename, directory name, or volume label syntax is incorrect."

Note: .NET GAC Util. Version is 4.0.30319.0

Can somebody please help?

Thank you!