go to: "C:\Users\YOU-USER-NAME\AppData\Local\Android\Sdk\tools\bin"
sdkmanager "platform-tools" "platforms;android-26"
as listed here: https://developer.android.com/studio/command-line/sdkmanager
All muhaza's note in developing website. Front-end & uiux method. Real life implementation for webdesigner.
sdkmanager "platform-tools" "platforms;android-26"
Press Windows + S , search for "Environment Variables" , and select: 👉 "Edit the system environment variables" Click...