Underlying provider failed on open
I was working on a Web App which uses a SQL database and EntityFramework. The app is hosted in Azure. I spent some time fixing up the csproj file so that the build and release pipelines work correctly i.e. once the code is committed to the repository, a build is kicked off and deployment takes place. So far so good. However on visiting the site I see this error: Error : The underlying provider failed on Open. Stack Trace : at System.Data.Entity.Core.EntityClient.EntityConnection.Open() at System.Data.Entity.Core.Objects.ObjectContext.EnsureConnection(Boolean shouldMonitorTransactions) ...