title: cmdline-tools : could not determine SDK root
body: <p><strong>C:\Android\sdk\bin&gt;sdkmanager</strong>
  Error: Could not determine SDK root.
  Error: Either specify it explicitly with --sdk_root= or move this package into its expected location: \cmdline-tools\latest\</p>
  <p>it shows like this, even after specifying the root in env variables.
  ANDROID_SDK_ROOT C:\Android\sdk</p>
  <p>I am using windows 10 64 bit machine, I want to run flutter without android studio so followed instruction on this page <a href="https://medium.com/@quicky316/install-flutter-sdk-on-windows-without-android-studio-102fdf567ce4" rel="noreferrer">https://medium.com/@quicky316/install-flutter-sdk-on-windows-without-android-studio-102fdf567ce4</a></p>