Flutter plugin mot installed still occurs even if I have installed it - flutter

I am working on Windows so the following command does not work.
ln -s ~/Library/Application\ Support/Google/AndroidStudio4.1/plugins ~/Library/Application\ Support/AndroidStudio4.1
Any idea?

The last command you mentioned is specifically for MAC users not for Windows.
Anyhow, try the below commands and check if it is working fine.
flutter channel dev
flutter upgrade
flutter config --android-studio-dir="C:\Program Files\Android\Android Studio"
flutter doctor -v
Note: Make sure to change commands based on your directory structure.

I solved the issue with the following ways.
Requirement: You have Git installed on your machine.
Create a folder, for example, src directly in a root path. This procedure is the same as what explained in the flutter official download page. So you now have d:\src for example.
Open powershell or cmd, navigate to d:\src and execute git clone -b master https://github.com/flutter/flutter.git. You need to select master branch here because the stable version still has your issue (as of the time of writing).
Once the cloning finishes, execute flutter doctor -v. The problem should vanish.
You might need to set write access to the flutter folder such that Android Studio can create Flutter project files, etc.

Related

Can not install Flutter on MacOs, Tells that the unzip process is not working

When I try to install
unzip ~/Downloads/flutter_macos_2.2.2-stable.zip
this message pops up
unzip: cannot find or open /Users/user/Downloads/flutter_macos_2.2.2-stable.zip, /Users/user/Downloads/flutter_macos_2.2.2-stable.zip.zip or /Users/user/Downloads/flutter_macos_2.2.2-stable.zip.ZIP.
I don't what to do to install Flutter to OSX (vscode)
I can obtain flutter for Android Studio with no problems.
Also can't access flutter by itself on iTerm or Terminal.
First, it seems that your archive has two extensions .zip.zip, but it's probably not the problem you're facing.
You may want to check if your iTerm has the necessary permissions to access the content of the folder "Download" since it's a special folder for MacOS.
Second, for creating a flutter project through VSCode, you need to run the command flutter create myprojectnamehere, you will not have a button to create a flutter project like on Android Studio.
If you still facing issues with the installation of Flutter, you may want to checkout Flutter_Installer which is a Flutter GUI Installer made with Flutter.

zsh: permission denied when trying to use flutter

I have been working with flutter for a week now and it runs okay, however I can't use commands such as flutter doctor or flutter upgrade on my terminal nor Android studio. Whenever I try to run a flutter command I get
zsh: permission denied: /Users/name/flutter/bin.
I tried adding the source to nano ~/.zshrc and export PATH, but nothing worked.
I faced this issue when setting up Flutter on my new mac, even after setting the PATH correctly. Turns out i installed the wrong SDK (Window). So make sure to install the correct Flutter SDK on your respective OS.
For MacOS :
https://flutter.dev/docs/development/tools/sdk/releases?tab=macos
For Window :
https://flutter.dev/docs/development/tools/sdk/releases?tab=windows
Make sure you've installed the correct SDK for your machine. For me I had installed Flutter's Windows SDK on my Mac machine.
For macOS : https://flutter.dev/docs/development/tools/sdk/releases?tab=macos
For Window: https://flutter.dev/docs/development/tools/sdk/releases?tab=windows
If you added the path and sure that you have downloaded the correct os files and still get the error:
Go to flutter folder
Empty folder
Open terminal and go to the flutter folder
git clone https://github.com/flutter/flutter.git -b stable
Run below command in the terminal, it worked for me
export PATH="/<full-path-of-flutter-folder>/bin:$PATH"
add the sudo prefix to your command. I guess you are not the admin.
eg: sudo flutter doctor

How do you uninstall Flutter completely and properly from a Mac?

I need to uninstall Flutter completely from my Mac. However, I cannot find any documentation that can help me with that.
Flutter is an SDK that you download and unpack onto a directory in your Mac. There is no automatic uninstall process in the same way that there is no automatic install process. You "installed" it by downloading a zip file and unzipping it. All you have to do is remove the contents of the directory where you unzipped it in.
Even the path addition to be able to call the flutter command from anywhere in your system has to be done manually. If you did that, then you can remove it as well from your shell's PATH.
just rm -rf the sdk folder, or if you just want to clean a corrupt
run the following commands in the Flutter install directory:
git clean -xfd
git stash save --keep-index
git stash drop
git pull
flutter doctor
To find your flutter sdk installed path. use which flutter command and then delete the Flutter SDK folder.
Note: This command only works if you set the path correctly.
The following worked for me:
snap remove flutter
This worked for me actually:
sudo npm uninstall -g flutter-cli

Flutter new web project not showing in Visual Studio command palette

I have installed Visual Studio Code, Dart and Flutter correctly according to the tutorial step shown in docs. I have checked it 100 times but nothing is wrong, unable to find issue.
Expected result in Flutter:
New web project must be visible in in Visual Studio Code.
I was not able to get 'Flutter: New Web Project", but following https://flutter.dev/docs/get-started/web from the Flutter Docs got me running the app on the web. Hope it helps. Below are the commands that I entered in Visual Studio Code's terminal
$ flutter channel dev
$ flutter upgrade
$ flutter config --enable-web
$ mkdir <new_project_directory_name>
$ cd <into new_project_directory>
$ flutter create .
$ flutter run -d chrome
Flutter: New Web Project was removed from the VS Code extension. The excuse was this was always supposed to be temporary and it broke with the latest release of 'Stagehand'. But removing it makes it harder to create a new web project. I followed the directions given in answer by #ALotLikeEss.
I tried this and it's working for me :
open terminal in project folder and execute this :
flutter config --enable-web
And restart your IDE
Run commando in terminal flutter config --enable-web, restart your vscode or android studio and try again..
I had the same problem. if flutter plugin is installed, direct visual studio code to a folder (open a folder) then select view>command palette> or press ctrl+shift+p short cut keys, then write flutter. Flutter:New Project item will be displayed. Opening a folder solved my problem.
Simply select "Debug" and "Start Debugging" from the menu. After this, the command palette will appear.
Update your visual studio code to latest version (Version 1.35.0 (1.35.0)) and install Flutter and Dart plugin

Flutter doctor hangs on start, no output

I'm trying to install Flutter on my Windows 8 computer. I unzipped files to C:/flutter and added the bin folder to the path variable. However I am stuck on the step where I have to run flutter doctor in flutter_console. The Flutter doctor hangs and only shows the blinking cursor and no output. More interestingly any other flutter command will freeze the exact same way.
I have already tried
Running flutter console as admin
Reinstalling flutter
Installing the dev version
Use the VS code plugin to run flutter doctor
But they all led to the same result
So the solution of this issue is:
delete folder in your flutter SDK path flutter/bin/cache (detail info here)
run flutter doctor -v again will trigger downloading Dart SDK
PS: if your network is slow because of in china, check bellow:
Do things bellow in terminal maybe speed up your the download speed (for me it's speed up 3x) for changing channel:
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn (detail info here)
flutter channel stable (one example of change flutter channel)
flutter doctor -v (trigger downloading SDK)
Albeith in win10, these steps solved the issue for me (do not know if all are necessary)
restart win
run cmd as administrator
flutter doctor
According to this git issue, this is mostly caused by installing flutter in a directory for which you do not own the priviledges. For example, the Program Files folder: to solve then, you can try to move the installation folder
Problem
I had the same problem while trying to reinstall flutter using the recommended windows install guide found here https://docs.flutter.dev/get-started/install/windows
(flutter_windows_3.3.9-stable).
All flutter commands would hang and only show the flashing cursor. It did not matter if I was in the flutter console, PowerShell, VS Code terminal or Admin Command prompt.
This made running flutter doctor impossible, and thus I couldn't complete the flutter setup.
Environment
I am using a PC running Windows 10.
I am located in North America. (If you are in China, you may need to use a proxy server for the initial download).
Flutter was installed on a drive with ample free space in a non-restricted folder.
I have a stable internet connection.
I have git for windows installed and have set up my ssh keys. (you can download and install this form here https://git-scm.com/download/win).
I have my Windows Firewall and network protection on. (You may need to turn off third party firewalls or add a rule to them allowing flutter to make connections to the internet during the flutter setup).
Solution
This solution worked for me and should resolve most install problems related to installing flutter on a Windows environment.
Please upvote if it works for you.
Step 0 - Remove flutter from system:
If reinstalling flutter, do this step, otherwise move to step 1 if preforming a fresh installation.
Open file explorer and delete the folder titled flutter if already installed.
Type environment variables into the windows search bar and open Edit the system environment variables.
Click environment variables in the Advanced tab.
Double-click the word Path found under User variables for {YOUR USER NAME}.
Select any entries that end with \flutter or \flutter\bin and delete them.
Click the Ok button and then the Ok button to apply the changes.
Step 1 - Download Stable Flutter Version:
Go to the official flutter website https://docs.flutter.dev/development/tools/sdk/releases and download the most recent flutter version in the Stable channel (Windows).
Once downloaded, unzip the folder.
Place the flutter folder found inside the Zip file wherever you would like to store it on your computer. Flutter recommend putting it in C:\src\flutter. You can place it where've you like as long as It's not in a folder that requires elevated privileges to access, such as the C:\Program Files\ folder.
Note* I used Windows Explorer to unzip the file, however others report used 7-Zip file Manager for unzipping solved their problem.
Step 2 - Setup Environment Variables:
Type environment variables into the windows search bar and open Edit the system environment variables.
Click environment variables in the Advanced tab.
Double-click the word Path found under User variables for {YOUR USER_NAME}.
Click Browse... and navigate to where you placed the flutter folder. Then navigate to the bin file inside the flutter folder and click ok.
A new environment variable should have been added that looks like C:\src\flutter\bin.
You also need to make sure Git\bin\cmd, Git\bin\git.exe and, C:\Windows\System32\WindowsPowerShell\v1.0\ system environment paths are setup. These were post likely configured during your git for windows install.
Follow the "Update your path section" found here https://docs.flutter.dev/get-started/install/windows if this doesn't work for you.
Note* If Path doesn't exist, click new... and set variable name to Path and Variable value to the file path of your bin folder found in the flutter folder you just unzipped.
Step 3 - Reboot your computer in Safe Mode with Networking:
Press the Windows key + I on the keyboard to open Settings, or type settings in the windows search bar.
Click Update & Security and on the left pane select Recovery.
Under Advanced Startup, click Restart Now.
After the computer restarts, on the Choose an Option screen, select Troubleshoot > Advanced Options > Startup Settings > Restart.
After the computer restarts, a list of options appears. Select 5 or F5 for Safe Mode with Networking or whatever key your computer says to boot into Safe Mode with Networking.
Step 4 - Launch Administrator Command Prompt:
After rebooting, type command prompt into the windows search bar.
Right-click the application icon and click Run as administartor.
Run the following commands, flutter pub cache repair then flutter doctor -v. This might take quite some time if you have poor internet, as it will re-downloads every package in the cache.
If flutter doctor reports any red or yellow warnings with your environment, you need to resolve these first before continuing. These are quite common, and a Google search of the error or warning should solve your problem.
Note* if the command flutter is unrecognized, this means you didn't set up your environment path variables in step 2 correctly.
Step 5 - Reboot and run your project
Now that flutter doctor has run in safe mode, we can restart the computer and get out of safe mode.
Open your flutter project in Visual Studio Code.
Open a terminal window under terminal > new Terminal.
run the command, git config --global --add safe.directory C:/src/flutter make sure you use forward / and set the file path to wherever you saved your flutter folder. This can also be run from the administrator command prompt if you don't have VS Code or a flutter project.
Then run flutter doctor -v in the VS Code terminal to make sure everything is working.
Now we need to rebuild all of our packages and dependencies, run the following list of commands in order.
flutter clean
flutter pub cache repair
flutter pub get
flutter pub upgrade --major-versions
Troubleshooting
These are other solutions I noticed on stack overflow while trying to solve the problem for myself. These didn't work for my situation, but may help you solve yours.
Flutter doctor, running very slowly. Try deleting the cache folder found in, C:\src\flutter\bin\cache\ then running flutter doctor -v again. Flutter doctor hangs on start, no output
If you are in China. Download flutter through a mirror site.
Try installing a different type of unzip program (like 7-zip).
Make sure you are using the Stable flutter channel.
Make sure your path variables are set up correctly.
getting error "Waiting for another flutter command to release the startup lock" Use task manager to forcibly close any flutter or dart programs.
Can't delete old flutter folder, in use for some reason. Restart and immediately delete the folder.
Make sure flutter isn't installed in a folder that requires admin privileges to access, such as C:\Program Files\.
Make sure you have git for windows installed and have set up your ssh keys.
Add the Flutter and Dart extensions to VS Code.
Add the flutter and Dart plugins to Android Studio.
Delete the cache folder inside bin folder of the flutter sdk then run flutter doctor it should work now.