When the MAC system uses ADB for the first time, it reports an error because it needs to configure tools,

When using the MAC for development, you use the ADB instruction to perform some operations. If you have not configured the Android environment variables, you will encounter the problem of ADB: command not found. You need to configure the Android environment variables on the Mac

Operation steps:

1. Open the terminal terminal of the Mac and enter Cd ~/[enter the home directory of the current user]
2. Enter touch. Bash_ Profile [if not. Bash_ Profile, create a file]
3. Enter open. Bash_ Open the file we created and a text edit box will pop up. If the environment is configured for the first time, the text edit box will be blank.
4 . export ANDROID_ HOME=/Users/haijunren/Library/Android/sdk
export PATH=${PATH}:${ANDROID_ HOME}/tools
export PATH=${PATH}:${ANDROID_ Home}/platform tools
note: Android in 4_ Home should be filled in according to its own SDK path, and the rest can be copied directly. As for the SDK path, you can open Android studio and search the SDK in preference (Windows setting) to view it
Enter source. Bash in the terminal_ Profile [make our changes effective]
Enter ADB [verify whether the configuration is complete, if the ADB: command not found is not displayed, the configuration is complete]