Sending a \TYPO3\CMS\Core\Mail\FluidEmail from a console command. The template uses the t3viewhelper:typo3-fluid-uri-page.
Error message:
[ERROR] The rendering context of ViewHelper f:link.page is missing a valid request object. Switch to using other ViewHelpers or set a valid request object to the FluidEmail See also Send email with FluidEmail <t3coreapi:mail-fluid-email>.