zsh: command not found: flutter

You need to update the environment path.

1. Open terminal.

2. vim $HOME/.zshrc

3. Press "I" key for going to insert mode.

4. add the following line in the opened file:

   export PATH="$PATH:/YOUR_FLUTTER_DIR/flutter/bin"

5. Press "Esc" then write :wq! in terminal and press enter to exit vim.

6. Reopen the terminal and check "flutter doctor"

If this solution not work, remove the double quote from path.

Working on macOS Catalina 10.15.5 (19F101). I have used .zprofile instead of .zhrc

1. Provide Full Disk Access to Terminal by Setting -> Security & Privacy -> Full Disk Access. Add Terminal

2. If the current terminal uses bash, change to zshell using the below command

   chsh -s /bin/zsh

3. In the root directory i.e something like /Users/^YourAccount^ execute the below

   touch .zprofile

   vim .zprofile

4. Press I to enter insert mode. Type the below

   export PATH=$PATH:/Users/^YourAccount^/^YourPath^/flutter/bin

5. Save and quit by pressing Esc, then :wq and Enter

6. Close Terminal and reopen Again. Then try executing flutter command

You must update your environment $PATH variable.

1) Open the file $HOME/.zshrc $HOME is your home path

2) add the following line in the opened file:

export PATH="$PATH:/YOUR_FLUTTER_DIR/flutter/bin"

3) save the changes and restart your terminal session.

The process is also documented here