Where is this function located? Is it a plugin? (I don’t find this in my sources)
Most likely you just need to add the module in which the function declaration is located to the file Procedural.Build.cs
PrivateDependencyModuleNames.AddRange(new string[ ] { “NeededModuleName” });
Here is an example of defining a module name:
ProjectDir\Plugins\PluginName\Source\ NeededModuleName \Public\File.h