DotNet Core console app: An assembly specified in the application dependencies manifest
Always use the publish output when deploying to a target sever.
It can be found in
bin\Release\netcoreapp2.0\win81-x64\publish
in your case (self-contained application)
or in
bin\Release\netcoreapp2.0\publish
for framework-dependent deployments.
The output in the directories above are meant to be used in development only, since they are specific to machine and user configuration built with.