Unable to use in Azure Function App

[kamyuen]

I am able to run a Function locally in Debug mode to retrieve data via JDBC. However once published it no longer runs and I receive the following exception:
"
Exception while executing function: Function1 J2NET.Runtime could not be found. Please check if the runtime is installed for your platform."

I have tried publishing the target runtime as portable and win-x64, but get the same exception.
When going into the Function via the console I can see the DLLs and Jar files are all there, including J2NET.dll in C:\home\site\wwwroot\bin\

Does anybody have a solution?