fix: prevent System.IO.DirectoryNotFoundException

refactor: rename private member variable

Revert "chore: bump version as the latest version runs on dotnet 3.1 …

…and that is installed on the agent"

This reverts commit 811bc37.

fix: failed to load launch setting files on unix machines

docs: tidied up examples

Update azure-pipelines.yml for Azure Pipelines

chore: packing with version