I have just inherited on old Umbraco 8 site which uses NewsletterStudio and has the following nuget packages installed:
NewsletterStudio 3.0.9,
NewsletterStudio.Core 3.0.9,
NewsletterStudio.Web 3.0.9
On trying to get the site to build, the 1st issue I have is with the NewsletterStudioSubscribe.cshtml, any line using, NewsletterStudio.Api, eg
if (NewsletterStudio.Api.IsValidEmail(txtEmail))
show a red line under it with the error,
'Api' does not exist in the namespace 'NewsletterStudio'
As far as I can tell this view is provided as a template and hasn't been touched. Am I missing something else I need to install?
