The nanny level tutorial of flutter environment configuration makes the doctor green to the end

Write it at the front

front end , It is a profession that covers a wide range ！ It's not limited to web page , We also need to write some mobile phones app, that , We need to learn Flutter perhaps React-Native Technology .

• install Flutter It's hard work , I encountered a lot in the process of my own exploration bug, The process is painful
  • For example, after installation , But it doesn't work , Will these accumulate and affect the performance of the computer ？ For programmers who pursue perfection , It is Mental torture
• Now let's talk to Taylor about how to configure Flutter Environmental Science

Download Flutter Sdk

• Get into Flutter Official website Download
  • Click on Get started Go to the next page
    • This button can be found in the upper right corner and under the homepage

• Click on macOS Then go to the download page
  • System requirements Write the hardware requirements
  • Below Get the Flutter SDK This is where we are going to download

• After the following , We build a new one development Then extract the folder into this folder

Update Path Variable

• Then run the following command

cd ～/development
export PATH="$PATH:`pwd`/flutter/bin"

• echo $SHELL Command can know which one you are using now SHELL
• establish .zshrc file
  • touch .zshrc
  • Then we use the command under the folder command+shift+. You can see the hidden files
• open .zshrc file , Editing
  • export PATH="$PATH:[PATH_OF_FLUTTER_GIT_DIRECTORY]/bin"
    • [PATH_OF_FLUTTER_GIT_DIRECTORY] Express flutter/bin File directory for
  • therefore , Maybe the order will be like this export PATH="$PATH:/User/41/development/flutter/bin
  • Be careful ： Don't copy the above commands directly , Use your own directory to replace ！！！
• Use the command to run rc file
  • Online means source $HOME/.zshrc
  • I use source $HOME/development/.zshrc Successfully running
• Then use Flutter, Successful operation means SDK There is no problem

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• function flutter doctor What's the problem with coming to Kangkang , Oh my god , be startled at

• There are four big mistakes
  • cmdline-tools
  • Android license status unknown
  • Xcode
  • Android Studio

Install Xcode

• stay App Store Search for Xcode Just download and install directly
  • Is that all ？ It's naive
  • After downloading, use flutter doctor Still have Xcode The error of
• Run the following command to solve this problem

sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
sudo xcodebuild -runFirstLaunch

• Now? Xcode The problem is officially solved

Install Android Studio

• Go first android studio Official website download sdk
  • Click on download Android Studio
  • Click on Download Android Studio
  • There is a document for you to see , Point has been read , Then download the corresponding version
    • The chip model can be found in about this machine

• Install into the application , Only in this way can we solve doctor The problem of

• New version of the Android Studio Long like this
  • We are More Action Can be found in SDK Manager
  • In this, we can solve cmdline-tools Of bug
  • Then select the following sdk then apply Download , Last point ok That's all right.

Accept Android Licenses

• This question is based on flutter doctor Run the following command at the prompt of
• flutter doctor --android-licenses

One green in the end

• Then we run... Again flutter doctor
  
• bug, There is no the ！