Flutter 更新了到 3.7.7

下載 https://docs.flutter.dev/get-started/install/linux,  3.7.7 無需再用 flutter upgrade了. Happy.

下載 linux 版本:  https://docs.flutter.dev/get-started/install/linux, 跟 3.3.9 一樣還是要切到 channel   master  並 upgrade 才會正常:

                        flutter channel master  &&   flutter  upgrade