[TOC]
安裝
本文以Mac系統為例
訪問官網安裝：
https://flutter.dev/docs/get-started/install/macos
下載SDK包flutter_macos_v1.2.1-stable.zip
命令行執行下面幾個步驟：
? cd ~/development //替換成自己的目錄
? unzip ~/Downloads/flutter_macos_v1.2.1-stable.zip
? export PATH="$PATH:`pwd`/flutter/bin"
? flutter precache
? flutter doctor
doctor提示問題
Doctor summary (to see all details, run flutter doctor -v):
[?] Flutter (Channel stable, v1.2.1, on Mac OS X 10.14.3 18D109, locale
zh-Hans-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 26.0.1)
? Flutter requires Android SDK 28 and the Android BuildTools 28.0.3
To update using sdkmanager, run:
/Users/david/Library/Android/sdk/tools/bin/sdkmanager
"platforms;android-28" "build-tools;28.0.3"
or visit https://flutter.io/setup/#android-setup for detailed
instructions.
! Some Android licenses not accepted. To resolve this, run: flutter doctor
--android-licenses
[!] iOS toolchain - develop for iOS devices (Xcode 10.2)
? libimobiledevice and ideviceinstaller are not installed. To install with
Brew, run:
brew update
brew install --HEAD usbmuxd
brew link usbmuxd
brew install --HEAD libimobiledevice
brew install ideviceinstaller
? ios-deploy not installed. To install:
brew install ios-deploy
[!] Android Studio (version 2.3)
? Flutter plugin not installed; this adds Flutter specific functionality.
? Dart plugin not installed; this adds Dart specific functionality.
[!] VS Code (version 1.7.2)
? Flutter extension not installed; install from
https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[!] Connected device
! No devices available
! Doctor found issues in 5 categories.
解決中遇到的問題
1，運行precache很慢
Downloading android-arm64-profile/darwin-x64 tools... ? (This is taking an unexpect
解決方案
? export PUB_HOSTED_URL=https://pub.flutter-io.cn
? export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn
? flutter precache
2，更新brew很慢
解決方案
使用中科大的鏡像替換默認源
- 第一步，替換brew.git
? cd "$(brew --repo)"
? git remote set-url origin https://mirrors.ustc.edu.cn/brew.git
- 第二步：替換homebrew-core.git
? cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
? git remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git
- 最后使用下面命令進行更新，發現速度變的很快。替換鏡像完成。
? brew update
3，brew遇到SSL certificate problem
? brew install --HEAD usbmuxd
==> Cloning https://git.sukimashita.com/libusbmuxd.git
Cloning into '/Users/david/Library/Caches/Homebrew/usbmuxd--git'...
fatal: unable to access 'https://git.sukimashita.com/libusbmuxd.git/': SSL certificate problem: certificate has expired
Error: An exception occurred within a child process:
DownloadError: Failed to download resource "usbmuxd"
Failure while executing; `git clone --branch master https://git.sukimashita.com/libusbmuxd.git /Users/david/Library/Caches/Homebrew/usbmuxd--git` exited with 128. Here's the output:
Cloning into '/Users/david/Library/Caches/Homebrew/usbmuxd--git'...
fatal: unable to access 'https://git.sukimashita.com/libusbmuxd.git/': SSL certificate problem: certificate has expired
解決方案
? git config --global http.sslVerify false
4，android-licenses長時間沒有反應
? flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[?] Flutter (Channel beta, v1.3.8, on Mac OS X 10.14.3 18D109, locale zh-Hans-CN)
? Checking Android licenses is taking an unexpectedly long time...
解決方案
? flutter doctor --android-licenses
Warning: File /Users/david/.android/repositories.cfg could not be loaded.
All SDK package licenses accepted.======] 100% Computing updates...
5，Install the Flutter and Dart plugins
Android Studio 解決方案
To install these:
- Start Android Studio.
- Open plugin preferences (Preferences > Plugins on macOS, File > Settings > Plugins on Windows & Linux).
- Select Browse repositories, select the Flutter plugin and click Install.
- Click Yes when prompted to install the Dart plugin.
- Click Restart when prompted.
VSCode 解決方案
- Start VS Code.
- Invoke View > Command Palette….
- Type “install”, and select Extensions: Install Extensions.
- Type “flutter” in the extensions search field, select Flutter in the list, and click Install. This also installs the required Dart plugin.
VSCode Validate your setup with the Flutter Doctor
- Invoke View > Command Palette….
- Type “doctor”, and select the Flutter: Run Flutter Doctor.
- Review the output in the OUTPUT pane for any issues.
6，Android SDK版本不匹配
? flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[?] Flutter (Channel beta, v1.3.8, on Mac OS X 10.14.3 18D109, locale
zh-Hans-CN)
[!] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
? Flutter requires Android SDK 28 and the Android BuildTools 28.0.3
To update using sdkmanager, run:
/Users/david/Library/Android/sdk/tools/bin/sdkmanager
"platforms;android-28" "build-tools;28.0.3"
or visit https://flutter.io/setup/#android-setup for detailed
instructions.
[?] iOS toolchain - develop for iOS devices (Xcode 10.2)
[?] Android Studio (version 3.3)
[?] VS Code (version 1.32.3)
[?] Connected device (1 available)
解決方案
- 點擊androidStudio菜單的Settings
- 點擊Appearance&Behavior
- 點擊System Settings
- 安裝Android SDK 28
最后所有診斷都通過
? flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[?] Flutter (Channel beta, v1.3.8, on Mac OS X 10.14.3 18D109, locale
zh-Hans-CN)
[?] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[?] iOS toolchain - develop for iOS devices (Xcode 10.2)
[?] Android Studio (version 3.3)
[?] VS Code (version 1.32.3)
[?] Connected device (1 available)
7. 新建flutter項目flutter Resolving dependencies...很慢
打開和新建flutter項目時發現，flutter Resolving dependencies...很慢。
解決辦法：
打開Flutter SDK：flutter\packages\flutter_tools\gradle\flutter.gradle
改為以下即可解決！
buildscript {
repositories {
// google()
// jcenter()
maven{ url 'https://maven.aliyun.com/repository/google' }
maven{ url 'https://maven.aliyun.com/repository/jcenter' }
maven{url 'http://maven.aliyun.com/nexus/content/groups/public'}
}
dependencies {
classpath 'com.android.tools.build:gradle:3.2.1'
}
}
