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flutter-linux-install-guide-readme.md file added
Added a step-by-step guide to install flutter on Linux
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‎flutter-linux-install-guide/README.md

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# flutter install step-by-step guide - Linux install (64 bit)
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## step 1 : Download the following installation bundles and tools to get started
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1. Get the Flutter SDK (latest stable version) - [Official flutter docs](https://flutter.dev/docs/get-started/install/linux#get-the-flutter-sdk)
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2. Get the Android Studio - [Download Android Studio](https://developer.android.com/studio)
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## step 2 : Create a workspace directory - this folder will contain all your projects, flutter sdk and all its dependencies.
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* Create a folder named "workspace" on your Desktop
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* Extract the files downloaded in step 1
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* In your Downloads folder, To extract files, Right click on the file => Select "Extract Here"
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* Search for folders named "android-studio" & "flutter" in the above extracted folders.
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* Move "android-studio" & "flutter" folders into your "workspace" folder created on your Desktop.
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Note : By this stage your should have a "workspace" folder on your desktop which contains "android-studio" & "flutter" named folders. Now proceed to step 3
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## step 3 : Install Android Studio in Linux (Ubuntu)
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Open Terminal, run command :
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```
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$ cd Desktop/workspace/android-studio/bin
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$ ./studio.sh
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```
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* ./studio.sh above command is used to run android studio setup wizard
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* Once the setup wizard is loaded
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* Select do not import settings
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* Click Next
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* Select Custom installation
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* Select the Dark theme
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* SDK Component Setup - Ensure you have tick mark on
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* Android SDK (component required)
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* Android Virtual Device (component required)
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* Select all other options as well to save time in future (Optional)
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* Now, create "Android" folder inside your workspace directory on your Desktop
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* Move the "Sdk" folder which is inside your workspace directory to newly created "Android" folder
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* Now, in the android studio wizard , set the sdk location
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* Android SDK Location = /home/dev/Desktop/workspace/Android/Sdk
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* Note : replace dev in the above sdk path with your username
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* Click on next twice and it will download the required files
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* Please check your connection. Internet Connection is required to download the files
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* Click on Finish once the download is completed
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* Close Android studio
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Note : This will create an Android folder in your workspace which will have Android SDK & also install Android Studio and AVD (Android Virtual Device)
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## step 4 : Update your PATH variable
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* Go to your HOME folder => Options => Show Hidden files
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* locate the .bashrc file in file explorer
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* Create a backup of the .bashrc file or .bash_profile file
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* Edit .bashrc file => Right click Open with text editor
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```
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PATH=$PATH:/home/dev/Desktop/workspace/flutter/bin
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PATH=$PATH:/home/dev/Desktop/workspace/Android/Sdk
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PATH=$PATH:/home/dev/Desktop/workspace/Android/Sdk/tools
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PATH=$PATH:/home/dev/Desktop/workspace/Android/Sdk/platform-tools
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PATH=$PATH:/home/dev/Desktop/workspace/android-studio/bin
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```
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* Add the above lines at the bottom of the .bashrc file
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* Click "Save" and exit the file.
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* Note : "dev" in the above path is username of our machine. Please replace "dev" inside above lines with your username
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### Explanation of the above lines that are added to the .bashrc file
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1. flutter bin environment variable
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```
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PATH=$PATH:/home/dev/Desktop/workspace/flutter/bin
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```
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Note : replace "dev" inside the above command with your username
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2. android sdk environment variables
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```
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PATH=$PATH:/home/dev/Desktop/workspace/Android/Sdk
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PATH=$PATH:/home/dev/Desktop/workspace/Android/Sdk/tools
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PATH=$PATH:/home/dev/Desktop/workspace/Android/Sdk/platform-tools
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```
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Note : replace "dev" inside the above command with your username
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3. android studio environment variables
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```
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PATH=$PATH:/home/dev/Desktop/workspace/android-studio/bin
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```
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Note : replace "dev" inside the above command with your username
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* Verify your updated PATH variable
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```
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echo $PATH
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```
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## step 5 : Install Android Studio Plugin
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Open android studio using terminal command studio.sh
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```
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$ studio.sh
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```
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* Select Configure => Plugins
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* Search for Flutter Plugin in the search bar and install
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* This will install both flutter and dart plugins
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* Restart Android Studio
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* New option to create a flutter application is now available in Android Studio
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* Click on "Create flutter application" option
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* Enter your app name, sdk location, project location, package name and some other required information
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* Click finish
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* Android studio will now create a starter flutter project
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* Happy Coding...
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### Accept android-licenses - Mandatory
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```
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flutter doctor --android-licenses
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```
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### Disable Flutter Analytics - Optional
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```
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flutter config --no-analytics
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```
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## step 6 : Run flutter doctor to test the environment setup
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Note : Keep your linux system up-to-date (System Updates) which helps in installing common dependencies required by flutter
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```
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$ flutter doctor
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Doctor summary (to see all details, run flutter doctor -v):
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[✓] Flutter (Channel stable, v1.9.1+hotfix.4, on Linux, locale en_US.UTF-8)
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[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
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[✓] Android Studio (version 3.5)
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[!] Connected device
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! No devices available
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```
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The above command should show all check marks to ensure that flutter installation is complete
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## step 7 : Common Errors/Warnings Guide while running flutter doctor command
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* Error : Unable to find git in your PATH
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Run command to Install git 2.x
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```
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sudo apt-get install git
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```
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* Install dependency only if required by flutter doctor summary
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```
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sudo apt-get install lib32stdc++6
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```
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## step 8 : Install Visual Studio Code (Optional)
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Get Visual Studio Code Editor - Optional - [Download Visual Studio Code](https://code.visualstudio.com/)
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* Get the \. deb file for Ubuntu. Double Click on it and install via Ubuntu Software Center
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* Install VS Code Extensions
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* Flutter
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* Dart => this will automatically be installed with flutter extension
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* Go to View Menu => Select Command Palette or Press Ctrl+Shift+P
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* Type flutter in the Command Palette window
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* Select Flutter:New Project option
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* Provide a name to your project
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* Select your desired location to store all your projects
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* Flutter project will be created
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* Start coding...
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Note : We can use Android Studio or Visual Studio Code Editor [ANY ONE] to develop flutter apps
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## step 9 : Launch your Android Emulator
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Launch using Android Studio AVD Manager
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* Open Android Studio
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* Navigate to AVD Manager
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* Select a device from the list or Create a new device
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* Enable Hardware-GLES 2.0
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* Select x86 image Android API Level with Google API - latest stable version of Android OS
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* Click Next & Finish the Emulator Config Setup
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* Click on PLAY BUTTON to start the emulator
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Launch using VS Code (Optional)
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* Check bottom-right corner of vs code
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* Click on "No Device" option
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* Select a emulator from the list
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* Click on the device name to start the emulator
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### Troubleshooting Android Emulator - Android Emulator not working ?
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Error List
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* Your CPU does not support required features (VT-x or SVM)
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* Please ensure KVM is properly installed
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* Error 1 : KVM is required to run this AVD
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* Error 2 : User does not have permission to use KVM (/dev/kvm)
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Error 1 : KVM is required to run this AVD
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* run command :
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```
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sudo apt-get install qemu-kvm
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or
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sudo apt-get install qemu-kvm libvirt-bin ubuntu-vm-builder bridge-utils ia32-libs-multiarch
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```
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* Restart your machine
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Error 2 : User does not have permission to use KVM (/dev/kvm)
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* run command :
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```
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sudo adduser $USER kvm
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```
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above command adds the current user
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```
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echo $USER
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```
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above command prints current username
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* Restart your machine
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### Useful Resources
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* [Android Developer Reference Docs - Emulator Acceleration](https://developer.android.com/studio/run/emulator-acceleration)
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* [Flutter Official Docs](https://flutter.dev/docs)
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