Ambiguous Reference to member '==' when using if in view

My code ran until I started organizing files into folders. I then received an ambiguous reference error. I tried ungrouping the files but the error remained. The compiler is not recognizing the usage of the '==' operator to test between a string stored in an struct and a string literal.

I'm really too new to SwiftUI to know what else I can try. However, I have tried doing the same in a test project with very simple code and I know that I should be able to use an if, the "==" operator

struct MainViewRow: View {
    var mainviewitem: MainViewItem

    var body: some View {
        HStack {
            Image(mainviewitem.imageName)
                .resizable()
                .frame(width: CGFloat(30), height:CGFloat(30) )
            Text(mainviewitem.actionname)
            Spacer()
            if mainviewitem.actionname == "action1" {
                NavigationLink("", destination: VitalsView(mainviewitem: mainviewitem))
                    .navigationBarHidden(false)
            }
            else if mainviewitem.actionname == "action2" {
                NavigationLink("", destination: MedicalRecordsView(mainviewitem: mainviewitem))
                    .navigationBarHidden(true)
            }
            else if mainviewitem.actionname == "action3" {
                NavigationLink("", destination: FeedingView(mainviewitem: mainviewitem))
                    .navigationBarHidden(true)
            }
            else if mainviewitem.actionname == "action4" {
                NavigationLink("", destination: QuestionsForVetView(mainviewitem: mainviewitem))
                    .navigationBarHidden(true)
            }
            else if mainviewitem.actionname == "action5" {
                NavigationLink("", destination: RecallsView(mainviewitem: mainviewitem))
                    .navigationBarHidden(true)
            }
            else if mainviewitem.actionname == "action6" {
                 NavigationLink("", destination: ParksView(mainviewitem: mainviewitem))
                    .navigationBarHidden(true)
            }


        } // HStack

    } //body
} // struct