Linq2DB unable to connect to Postgres database using T4

Question

I am trying to connect to my Postgres database in my T4 file using the following code:

<#@ template language="C#" debug="True" hostSpecific="True" #>
<#@ output extension=".cs"#>
<#@ include file="$(LinqToDBT4PostgreSQLTemplatesDirectory)LinqToDB.PostgreSQL.Tools.ttinclude" #>
<#@ include file="$(LinqToDBT4PostgreSQLTemplatesDirectory)PluralizationService.ttinclude"      #>
<# //@ include file="$(ProjectDir)LinqToDB.Templates\LinqToDB.PostgreSQL.Tools.ttinclude" #>
<# //@ include file="$(ProjectDir)LinqToDB.Templates\PluralizationService.ttinclude"      #>
<#

LoadPostgreSQLMetadata("localhost", "5433", "local_db", "postgres", "password");

GenerateModel();

#>

When I save the file in Visual Studio 2019, I get the following error:

Compiling transformation: 'ISqlBuilder' does not contain a definition for 'BuildTableName' and no 
accessible extension method 'BuildTableName' accepting a first argument of type 'ISqlBuilder' could 
be found (are you missing a using directive or an assembly reference?)

This is my first foray into using Linq2DB in T4, normally I have used SQL Server using SQLClient, but this project is using Postgres v11 and v14.

I am sure that it is something the I have not configured.

I have followed the following:

Can't generate data context with t4 template. PostgreSQL + MySql

Not 100% sure what the versions have to do with it, but here goes:

• Visual Studio 2019 (Version 16.11.15)
• Linq2Db installed from NuGet. Latest
• Linq2Db.Postgres installed from NuGet. Lastest
• NgpSQL installed from Nuget. Latest

UPDATE

I now have it working, but all I am interested in is generating enums from my database, I do not need it to generate a complete db context.

Is that possible?