I want to build a Google BigQuery C# ASP.net application using OAuth2 and the .Net 4.5 framework. I ran these NuGet installs
Install-Package Google.Apis.Bigq
They released a new version of -Package Microsoft.Bcl.Async.
If somebody has this issue, please install the "latest" version instead of 1.0.16.
I hope it works for you.