Add platform tools to the PATH environment variable

Linux/macOS

1. Open ~/.bash_profile with any text editor you like.
2. Add the following line with the full path to the platform-tools directory: export PATH=~/Library/Android/sdk/platform-tools/:$PATH. This path may be different depending on the way you installed platform-tools.
3. Save file and restart Terminal.

Windows

1. On the Windows desktop, right-click My Computer.
2. In the pop-up menu, click Properties.
3. In the System Properties window, click the Advanced tab, and then click Environment Variables.
4. In the System Variables window, highlight Path, and click Edit.
5. In the Edit System Variables window, insert the cursor at the end of the Variable value field.
6. If the last character is not a semi-colon (;), add one.
7. After the final semi-colon, type the full path to the platform-tools directory: C:\Users\USERNAME\AppData\Local\Android\sdk\platform-tools. This path may be different depending on the way you installed platform-tools.
8. Click OK in each opened window and restart Command Prompt.

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