Couldn't add latest 3.2.4 npgsql nuget

Adding vs2015 update to my installation 3. For a new console project.

Attempting to collect dependency information for package 'Npgsql.3.2.4' regarding project "ConsoleApplication4" targeting '.NETFramework, Version = v4.5.2' Attempting to resolve dependencies for package 'Npgsql.3.2.4' with DependencyBehavior 'Lowest' Resolving steps to install package 'Npgsql.3.2.4' Resolved steps to install package 'Npgsql.3.2.4' Add package 'System.Threading.Tasks.Extensions.4.3.0' to folder 'c: \ users \ paul.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages 'Added package' System.Threading.Tasks.Extensions.4.3.0 'to folder' c: \ users \ paul.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages 'Added package' System.Threading.Tasks.Extensions.4.3.0 'to' packages.config 'Successfully installed "System.Threading.Tasks.Extensions 4.3.0" on ConsoleApplication4 Add package 'Npgsql.3.2.4' to folder 'c: \ users \ paul.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages 'Added package' Npgsql.3.2.4 'to folder' c: \ users \ paul.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages failed. Rolling back ... Package 'Npgsql.3.2.4: System.Threading.Tasks.Extensions [4.3.0,)' does not exist in project "ConsoleApplication4" Removed package 'System.Threading.Tasks.Extensions.4.3.0' from 'packages.config' Removing package 'Npgsql.3.2.4: System.Threading.Tasks.Extensions [4.3.0,)' from folder 'c: \ users \ paul.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages Remote package 'Npgsql.3.2.4:System.Threading.Tasks.Extensions [4.3.0,) 'from folder' c: \ users \ paul.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages 'Removing package' System.Threading.Tasks.Extensions.4.3 .0 'from folder' c: \ users \ paul.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages Removed package 'System.Threading.Tasks.Extensions.4.3.0' from folder 'c: \ users \ paul .pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages' Failed to add reference to 'System.Collections'. Make sure it is in the Global Build Cache.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages Removed package 'System.Threading.Tasks.Extensions.4.3.0' from folder 'c: \ users \ paul.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages' Failed to add reference to 'System.Collections'. Make sure it is in the Global Build Cache.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages Removed package 'System.Threading.Tasks.Extensions.4.3.0' from folder 'c: \ users \ paul.pmdev \ documents \ visual studio 2015 \ Projects \ ConsoleApplication4 \ packages' Failed to add reference to 'System.Collections'. Make sure it is in the Global Build Cache.