Invalid Layer Expression Code [00204] When Generating Runtime Content

[JeremyMullins1]

I am trying to use two different fields to label the points in my Structures runtime layer: STNUM (street number) and SECONDARYL (I assume is secondary location or label). Here are what my labels look like:

This is my SQL Expression:

And here is my error code when I analyze the map document for runtime content generation:

Any ideas why this happens and what I can do to circumvent it (besides just creating a new field)?

[Anonymous User]

@ESRI should support label expressions in Runtime Content. I think we just went backwards 10 years if we can't label features in Runtime Content with label expressions.