Compile error

[zhouhao27]

Got the following error message:

Error output from CocoaPods:
↳

    [!] `<PBXGroup UUID=`97C146E51CF9000F007C117D`>` attempted to initialize an
    object with an unknown UUID. `CF3B75C9A7D2FA2A4C99F110` for attribute:
    `children`. This can be the result of a merge and  the unknown UUID is being
    discarded.

    [!] Automatically assigning platform `ios` with version `8.0` on target
    `Runner` because no platform was specified. Please specify a platform for
    this target in your Podfile. See
    `https://guides.cocoapods.org/syntax/podfile.html#platform`.

Error running pod install
Error launching application on iPhone 11.

Any idea? Thanks.