Trying out Dapper and I am able to do this:
Query QueryMultiple Query<T> QueryAsync QueryAsyc<T>
QueryFirstOrDefault, as well as all other queries not listed above are not available.
I have Dapper and Dapper Async installed via NUGET and I have
using Dapper; at the top. Am I missing a using or a package that has these other queries in them?
UPDATE: I went back down from 1.50.5 to a lower version and then back up to 1.50.5 and now it's working - a bad NUGET install the first time?
try typing "QueryFirstOrDefault" and then right click and see if there is something else the IDE recommends to add to "use".
EDIT: You are getting this error because you have not added the namespace using System.Linq in your cs file. Try to explicit declare Dapper. QueryFirstOrDefault