將 Flutter 加入 PATH

了解如何在下載 SDK 後，將 Flutter 加入你的 PATH 環境變數。 將 Flutter 加入你的 PATH，即可在終端機與 IDE 中使用 flutter 和 dart 命令列工具。

若要在 Windows 的終端機中執行 flutter 和 dart 指令， 請將 Flutter SDK 的 bin 目錄加入 Path 環境變數。

1. Determine your Flutter SDK installation location

   Copy the absolute path to the directory that you downloaded and extracted the Flutter SDK into.

2. Navigate to the environment variables settings

   1. Press Windows + Pause.

      If your keyboard lacks a Pause key, try Windows + Fn + B.

      The System > About dialog opens.

   2. Click Advanced System Settings > Advanced > Environment Variables....

      The Environment Variables dialog opens.

3. Add the Flutter SDK bin to your path

   1. In the User variables for (username) section of the Environment Variables dialog, look for the Path entry.

   2. If the Path entry exists, double-click it.

      The Edit Environment Variable dialog should open.

      1. Double-click inside an empty row.

      2. Type the path to the bin directory of your Flutter installation.

         For example, if you downloaded Flutter into a develop\flutter folder inside your user directory, you'd type the following:

         %USERPROFILE%\develop\flutter\bin

      3. Click the Flutter entry you added to select it.

      4. Click Move Up until the Flutter entry sits at the top of the list.

      5. To confirm your changes, click OK three times.

   3. If the entry doesn't exist, click New....

      The Edit Environment Variable dialog should open.

      1. In the Variable Name box, type Path.

      2. In the Variable Value box, type the path to the bin directory of your Flutter installation.

         For example, if you downloaded Flutter into a develop\flutter folder inside your user directory, you'd type the following:

         %USERPROFILE%\develop\flutter\bin

      3. To confirm your changes, click OK three times.

4. Apply your changes

   To apply this change and get access to the flutter tool, close and reopen all open command prompts, sessions in your terminal apps, and IDEs.

5. Validate your setup

   To ensure you successfully added the SDK to your PATH, open command prompt or your preferred terminal app, then try running the flutter and dart tools.

   flutter --version
   dart --version

   If either command isn't found, check out Flutter installation troubleshooting.

若要在 macOS 的終端機中執行 flutter 和 dart 指令， 請將 Flutter SDK 的 bin 目錄加入 PATH 環境變數。

1. Determine your Flutter SDK installation location

   Copy the absolute path to the directory that you downloaded and extracted the Flutter SDK into.

2. Open or create the Zsh environment variable file

   If it exists, open the Zsh environment variable file ~/.zprofile in your preferred text editor. If it doesn't exist, create the ~/.zprofile file.

3. Add the Flutter SDK bin to your path

   At the end of your ~/.zprofile file, use the built-in export command to update the PATH variable to include the bin directory of your Flutter installation.

   Replace <path-to-sdk> with the path to your Flutter SDK installation.

   bash

   export PATH="<path-to-sdk>/bin:$PATH"

   For example, if you downloaded Flutter into a develop/flutter folder inside your user directory, you'd add the following to the file:

   bash

   export PATH="$HOME/develop/flutter/bin:$PATH"

4. Save your changes

   Save, then close, the ~/.zprofile file you edited.

5. Apply your changes

   To apply this change and get access to the flutter tool, close and reopen all open Zsh sessions in your terminal apps and IDEs.

6. Validate your setup

   To ensure you successfully added the SDK to your PATH, open a Zsh session in your preferred terminal, then try running the flutter and dart tools.

   flutter --version
   dart --version

   If either command isn't found, check out Flutter installation troubleshooting.

若要在 Linux 的終端機中執行 flutter 和 dart 指令， 請將 Flutter SDK 的 bin 目錄加入 PATH 環境變數。

1. Determine your Flutter SDK installation location

   Copy the absolute path to the directory that you downloaded and extracted the Flutter SDK into.

2. Determine your default shell

   If you don't know what shell you use, check which shell starts when you open a new console window.

   echo $SHELL

3. Add the Flutter SDK bin to your path

   To add the bin directory of your Flutter installation to your PATH:

   1. Expand the instructions for your default shell.
   2. Copy the provided command.
   3. Replace <path-to-sdk> with the path to your Flutter SDK install.
   4. Run the edited command in your preferred terminal with that shell.

   ---

   Expand for bash instructions

   echo 'export PATH="<path-to-sdk>:$PATH"' >> ~/.bash_profile

   For example, if you downloaded Flutter into a develop/flutter folder inside your user directory, you'd run the following:

   echo 'export PATH="$HOME/develop/flutter/bin:$PATH"' >> ~/.bash_profile

   Expand for zsh instructions

   echo 'export PATH="<path-to-sdk>/bin:$PATH"' >> ~/.zshenv

   For example, if you downloaded Flutter into a develop/flutter folder inside your user directory, you'd run the following:

   echo 'export PATH="$HOME/develop/flutter/bin:$PATH"' >> ~/.zshenv

   Expand for fish instructions

   fish_add_path -g -p <path-to-sdk>/bin

   For example, if you downloaded Flutter into a develop/flutter folder inside your user directory, you'd run the following:

   fish_add_path -g -p ~/develop/flutter/bin

   Expand for csh instructions

   echo 'setenv PATH "<path-to-sdk>/bin:$PATH"' >> ~/.cshrc

   For example, if you downloaded Flutter into a develop/flutter folder inside your user directory, you'd run the following:

   echo 'setenv PATH "$HOME/develop/flutter/bin:$PATH"' >> ~/.cshrc

   Expand for tcsh instructions

   echo 'setenv PATH "<path-to-sdk>/bin:$PATH"' >> ~/.tcshrc

   For example, if you downloaded Flutter into a develop/flutter folder inside your user directory, you'd run the following:

   echo 'setenv PATH "$HOME/develop/flutter/bin:$PATH"' >> ~/.tcshrc

   Expand for ksh instructions

   echo 'export PATH="<path-to-sdk>/bin:$PATH"' >> ~/.profile

   For example, if you downloaded Flutter into a develop/flutter folder inside your user directory, you'd run the following:

   echo 'export PATH="$HOME/develop/flutter/bin:$PATH"' >> ~/.profile

   Expand for sh instructions

   echo 'export PATH="<path-to-sdk>/bin:$PATH"' >> ~/.profile

   For example, if you downloaded Flutter into a develop/flutter folder inside your user directory, you'd run the following:

   echo 'export PATH="$HOME/develop/flutter/bin:$PATH"' >> ~/.profile

4. Apply your changes

   To apply this change and get access to the flutter tool, close and reopen all open shell sessions in your terminal apps and IDEs.

5. Validate your setup

   To ensure you successfully added the SDK to your PATH, open your preferred terminal with your default shell, then try running the flutter and dart tools.

   flutter --version
   dart --version

   If either command isn't found, check out Flutter installation troubleshooting.

若要在 ChromeOS 的終端機中執行 flutter 和 dart 指令， 請將 Flutter SDK 的 bin 目錄加入 PATH 環境變數。

1. Determine your Flutter SDK installation location

   Copy the absolute path to the directory that you downloaded and extracted the Flutter SDK into.

2. Add the Flutter SDK bin to your path

   To add the bin directory of your Flutter installation to your PATH:

   1. Copy the following command.
   2. Replace <path-to-sdk> with the path to your Flutter SDK install.
   3. Run the edited command in your preferred terminal.

   echo 'export PATH="<path-to-sdk>:$PATH"' >> ~/.bash_profile

   For example, if you downloaded Flutter into a develop/flutter folder inside your user directory, you'd run the following:

   echo 'export PATH="$HOME/develop/flutter/bin:$PATH"' >> ~/.bash_profile

3. Apply your changes

   To apply this change and get access to the flutter tool, close and reopen all open Zsh sessions in your terminal apps and IDEs.

4. Validate your setup

   To ensure you successfully added the SDK to your PATH, open a Zsh session in your preferred terminal, then try running the flutter and dart tools.

   flutter --version
   dart --version

   If either command isn't found, check out Flutter installation troubleshooting.