Due to merge syntax, etc. this likely isn’t a trivial matter but would like to see an error displayed either during runtme or design time (ideally both) when a formula field contains a field token that is invalid.

Steps to demonstrate:

1. Create page using XML below


2. Preview page

Desired Behavior

An error displayed either during design time, runtime or ideally both indicating the referenced field is invalid

Sample Page XML

<skuidpage unsavedchangeswarning="yes" personalizationmode="server" showsidebar="true" showheader="true" tabtooverride="Account">   <models>

      <model id="Account" limit="1" query="true" createrowifnonefound="false" sobject="Account" adapter="" type="">

         <fields>

            <field id="Name"/>

            <field id="CreatedDate"/>

            <field id="InvalidFieldInFormula" uionly="true" displaytype="FORMULA" readonly="true" returntype="TEXT" label="InvalidFieldInFormula" precision="9" scale="2" defaultValue="aaaaaa">

               <formula>{{Foobar__c}} + ":" + {{Name}} + ":" + {{FakeField}}</formula>

            </field>

         </fields>

         <conditions>

            <condition type="param" enclosevalueinquotes="true" operator="=" field="Id" value="id"/>

         </conditions>

         <actions/>

      </model>

   </models>

   <components>

      <pagetitle model="Account" uniqueid="sk-2RvtQi-68">

         <maintitle>

            <template>{{Name}}</template>

         </maintitle>

         <subtitle>

            <template>{{Model.label}}</template>

         </subtitle>

         <actions>

            <action type="delete"/>

            <action type="clone"/>

            <action type="share"/>

            <action type="savecancel" window="self"/>

         </actions>

      </pagetitle>

      <basicfieldeditor showsavecancel="false" showheader="true" model="Account" mode="read" uniqueid="sk-2RvtQi-69">

         <columns>

            <column width="50%">

               <sections>

                  <section title="Basics" collapsible="no">

                     <fields>

                        <field id="Name"/>

                        <field id="InvalidFieldInFormula" valuehalign="" type=""/>

                     </fields>

                  </section>

               </sections>

            </column>

            <column width="50%">

               <sections>

                  <section title="System Info">

                     <fields>

                        <field id="CreatedDate"/>

                     </fields>

                  </section>

               </sections>

            </column>

         </columns>

      </basicfieldeditor>

   </components>

   <resources>

      <labels/>

      <css/>

      <javascript/>

   </resources>

   <styles>

      <styleitem type="background" bgtype="none"/>

   </styles>

</skuidpage>