Flutter: Android sdkmanager not found.

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$ flutter doctor --android-licenses
Android sdkmanager not found. Update to the latest Android SDK and 
ensure that the cmdline-tools are installed to resolve this.

  1. Abrir Android Studio
  2. Tools Menu, SDK Manager
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  1. In the window that comes up there are inner panels, choose SDK Tools panel
  2. Tick Android SDK Command-line Tools
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  1. Choose Apply button near the bottom of the window
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