During appium installation via npm install -g appium, selendroid setup files did not yet exist waiting error is coming and it stuck in a loop , and appium is not installing via npm command

During appium installation via npm install -g appium, selendroid setup files did not yet exist waiting error is coming and it stuck in a loop , and appium is not installing via npm command

I think android sdk is missing/not installed, please checkā€¦