kivy说我有多个屏幕有相同的nam

Question

Kivy一直告诉我，我的所有屏幕都有多个同名的屏幕，但我没有，我想这就是为什么我试图运行的一些代码似乎不起作用。需要帮助。

这是我的窗口管理器

<ScreenManager>:
    id: window manager
    Homepage:
        id: home
        name: "home"
    SignUpWindow:
        id: create
        name: "create"
    SignUp:
        id: signup
        name: "signup"
    LoginWindow:
        id: login
        name: "login"
    ProjectListScreen:
        id: project_list_screen
        name: "project_list_screen"
    ApplyPage:
        id: applyingpage
        name: "applyingpage"
    MainWindow:
        id: main
        name: "main"
    NewProjectScreen:
        id: placements
        name: "placements"
    ProfileWindow:
        id: page
        name: "page"