我在flutter + firebase的代码实验室里，我在android应用程序里配置firebase时遇到了麻烦，我已经在我的机器上全局安装了flutterfire cli，并在我的路径中导出了bin。

export PATH="$PATH:~/source/flutter/bin"
export PATH="$PATH":"$HOME/.pub-cache/bin"

但是，当我尝试使用flutterfire cli时，仍然会抛出以下错误。

flutterfire
/home/dio/.pub-cache/bin/flutterfire: 8: dart: not found

这个错误使我相信dart没有安装在我的系统上，但是...。

dart
A command-line utility for Dart development.

Usage: dart <command|dart-file> [arguments]

Global options:
-h, --help                 Print this usage information.
-v, --verbose              Show additional command output.
    --version              Print the Dart SDK version.
    --enable-analytics     Enable analytics.
    --disable-analytics    Disable analytics.

Available commands:
  analyze    Analyze Dart code in a directory.
  compile    Compile Dart to various formats.
  create     Create a new Dart project.
  devtools   Open DevTools (optionally connecting to an existing application).
  doc        Generate API documentation for Dart projects.
  fix        Apply automated fixes to Dart source code.
  format     Idiomatically format Dart source code.
  migrate    Perform null safety migration on a project.
  pub        Work with packages.
  run        Run a Dart program.
  test       Run tests for a project.

Run "dart help <command>" for more information about a command.
See https://dart.dev/tools/dart-tool for detailed documentation.

Flutter医生输出：

flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel master, 2.13.0-0.0.pre.271, on Pop!_OS 22.04 LTS 5.16.19-76051619-generic, locale en_US.UTF-8)
[✓] Android toolchain - develop for Android devices (Android SDK version 32.1.0-rc1)
[✗] Chrome - develop for the web (Cannot find Chrome executable at google-chrome)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[✓] Android Studio (version 2021.1)
[✓] Android Studio
[✓] VS Code (version 1.66.2)
[✓] Connected device (1 available)
[✓] HTTP Host Availability