Problems with image_field.

[barrelv]

so I'm trying to swap images based on my attribute values. When I compile, I keep getting the following error message:
Hero Lab was forced to stop compilation after the following errors were detected:
Portal 'health' - Reference to incompatible field type/style/behavior on portal type

Here's my code:

traits.str

    <!-- Health image name -->
    <field
      id="attImage"
      name="Image"
      type="derived">
    <!-- Determine this value based on the current value of the attribute -->
      <calculate phase="Traits" priority="3001" name="Calc attImage"><![CDATA[
        ~Note! Happens immediately after we get the final value of the related stat
        var image as string
        image = field[trtAbbrev].text & "-" & field[trtFinal].value & ".bmp"
        debug "Attribute Value" & image
        @value = image
        ]]></calculate>
      </field>

tab_basics.dat

    <portal id="health" style="imgNormal">
      <image_field field="attImage" istransparent="yes"/>
    </portal>

 

[Mathias]

This is not a method that will work. Image portals in HL need to be for specific images, and can't be set on the fly through scripts.

 

[Mathias]

I recommend leaving this sort of "nice-to-have" thing - making it pretty, until last - get it working first.