Github user spmallette commented on the issue:
https://github.com/apache/tinkerpop/pull/747
I think that there are a lot of path issues when building from outside of
the root directory - gremlin-dotnet is not the only one. i typically just do
this:
```text
mvn clean install -pl :gremlin-dotnet-source,:gremlin-dotnet-tests
-DskipIntegrationTests=false
```
If you think it's important to fix the path problems you get when running
from a sub-directory, I think it's best to create an issue in JIRA and I can
come back to it later.
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