我已经从Github克隆了一个特定的存储库到我的VSCode编辑器中，但是每次我尝试运行代码时都是这样的输出。
[运行] dart "/home/linusanari _/文档/Flutter项目/跳上/lib/main. dart "lib/main. dart：警告：将其解释为软件包URI，'package：vehicle_sharing_app/main. dart' .../../../snap/flutter/common/flutter/packages/flutter/lib/src/cupertino/action_sheet. dart：5：8：错误：未找到'dart：ui'导入'dart：ui'显示图像过滤器; ^../../../snap/flutter/通用/flutter/ Package /flutter/库/源代码/库比蒂诺/底部标签栏。dart：5：8：错误：未找到'dart：ui'导入'dart：ui'显示图像过滤器; ^../../../snap/flutter/普通/flutter/ Package /flutter/lib/src/库比蒂诺/颜色。dart：5：8：错误：未找到'dart：ui'导入'dart：ui'显示颜色、亮度; ^../../../snap/flutter/公共/flutter/包/flutter/库/源代码/库比蒂诺/上下文菜单。dart：6：8：错误：未找到"dart：ui"将"dart：ui"导入为用户界面; ^../../../snap/flutter/公共/flutter/包/flutter/库/源代码/库比蒂诺/对话框。dart：6：8：错误：未找到'dart：ui'导入'dart：ui'显示图像过滤器; ^../../../snap/flutter/公共/flutter/包/flutter/库/源代码/库比蒂诺/导航栏。dart：6：8：错误：未找到'dart：ui'导入'dart：ui'显示图像过滤器; ^../../../snap/flutter/普通/flutter/ Package /flutter/lib/src/库比蒂诺/路线。省道：6：8：错误：未找到'dart：ui'导入'dart：ui'显示lerpDouble，图像过滤器; ^../../../snap/flutter/普通/flutter/ Package /flutter/lib/src/库比蒂诺/滑块。dart：6：8：错误：未找到'dart：ui'导入'dart：ui'显示lerpDouble; ^../../../snap/flutter/公共/flutter/包/flutter/库/源/库比蒂诺/开关。dart：5：8：错误：未找到'dart：ui'导入'dart：ui'显示lerpDouble; ^../../../snap/flutter/公共/flutter/包/flutter/库/源代码/库比蒂诺/文本字段。dart：5：8：错误：未找到'dart：ui'导入'dart：ui'作为ui显示框高度样式、框宽度样式; ^
[完成]在15.987秒内退出，代码= 254
任何见解/帮助都将不胜感激。