Does this mean we need to be adding a <RequirementsTooltip> entry to a bunch of units for a27? I am seeing this warning all the time. It would help this effort a ton if the warning could print the template name missing the RequirementsTooltip, so that we know immediately which template to fix with the requirements tooltip.
I can't tell which template to change. The technology has the same requirementsTooltip as all the other city phase upgrades, and the warning occurs whether or not I have a Tooltip added to the unit involved.

In rP27531#61121, @real_tabasco_sauce wrote:

I am seeing this warning all the time.

Define "all the time"? Since I don't get it al all. ^^

In rP27531#61124, @Freagarach wrote:

In rP27531#61121, @real_tabasco_sauce wrote:

I am seeing this warning all the time.

Define "all the time"? Since I don't get it al all. ^^

Any new unit that requires some technology to unlock. Ex. https://code.wildfiregames.com/D5114 and https://code.wildfiregames.com/D5109.
Onagers, Legionaries, and Centurions all produce this warning even though they all have a tooltip.
I am also confused how the athenian marines do not cause this warning even though they have no tooltip, and are locked behind a unique tech.

Without looking at the specific templates, you may need to replace="" or remove (-) the previous tech requirement.

You'd need a Tooltip inside the Requirements entry for specifying the requirements.
Example:

<Requirements>
  <Tooltip>Unlocked by researching Marian Reforms or by reaching the City Phase.</Tooltip>
</Requirements>