No data type ‘TYPE’ could be found – OutSystems Combo Box

I was trying to set up a Combo Box bounded to a static entity and I got this error when I published the website:

Internal Error 
No data type 'Status' could be found. 
Exception Details:
[1] Internal Error: No data type 'Status' could be found.
at OutSystems.HubEdition.Compiler.WebWidgets.ComboBox.dumpEntityDeclaration(TextWriter res)
 at OutSystems.HubEdition.Compiler.WebWidgets.ComboBox.DumpDataBindingCode(TextWriter writer)
 at OutSystems.HubEdition.Compiler.AbstractServerWebWidget.DumpOnDataBinding(TextWriter writer, NodeViewState viewState)
 at OutSystems.HubEdition.Compiler.AbstractServerWebWidget.DumpHandler(TextWriter writer, NodeViewState viewState)
 at OutSystems.HubEdition.Compiler.WebWidgets.ComboBox.DumpHandler(TextWriter res, NodeViewState viewState)
 at OutSystems.HubEdition.Compiler.Nodes.WebScreen.Dump(TextWriter writer)
 at OutSystems.HubEdition.Compiler.Flows.WebFlow.Dump()
 at OutSystems.HubEdition.Compiler.WebFlows.WebHandler.Dump(IEnumerable`1 webFlows)
 at OutSystems.HubEdition.Compiler.ESpace.Dump()
 at OutSystems.HubEdition.Compiler.Compiler.InnerCompile(CompilationContext context)
 at OutSystems.HubEdition.Compiler.Compiler.Compile(CompilationContext context)
 at OutSystems.HubEdition.Compiler.Utils.CompilerUtils.WithOverridenSettings(IDictionary`2 settingsOverride, Action body)
 at OutSystems.HubEdition.Compiler.Compiler.<>c__DisplayClass3.<Compile>b__1()
 at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
 at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
 at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
 at System.Threading.ThreadHelper.ThreadStart()

But TrueChange didn’t show me any errors or warnings. I got this error only when I tried to publish the application.

The problem was that the variable that I defined to hold the value entered by the user was of the Static Entity type instead of the Static Entity Identifier type.

That variable “Status” was defined like this:

And must be defined like this:

It must be a Status Identifier instead of the Status (static entity).

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