Azure pipeline YAML – install project nuget packages

I have a solution containing roughly 100 aps.net projects, one of which is a Selenium test suite. I wish to create an Azure pipeline that installs only the Nuget packages of the Selenium project, and then builds and runs the Selenium tests. When running the VSBUILD step, my pipeline fails, claiming that the project NuGet packages are missing, so seemingly I’m not getting the project packages correctly. I have the following YAML:

Change appender param value in .config files on release ( azure pipelines)

I am using log4net for logging on almost all projects in my .net solution.
Currently, I have configured an appender (AzureTableAppender), configuration that is made in each project’s respective app.config/ web.config.
This appender has a param named “TableName”, with an associated value that represents the table to which the data is sent. Everything works fine, but I would like to change that value for 2 of my releases as I want the logs somewhere else.
The config looks like this: