Unable to access Android SDK add-on list

As an AI language model, I am unable to access the Android SDK add-on list directly. However, here are some steps you can follow to troubleshoot the issue:

1. Check your internet connection: Ensure that you have a stable internet connection to access the Android SDK add-on list.

2. Update Android Studio: Make sure you have the latest version of Android Studio installed on your system. You can check for updates in the help menu.

3. Clear cache and data: Go to the Android Studio settings and clear the cache and data for the SDK manager. Then restart Android Studio and try accessing the add-on list again.

4. Check proxy settings: If you are using a proxy server, make sure the settings are correct and try accessing the add-on list again.

5. Disable antivirus/firewall: Sometimes the antivirus or firewall on your system can block the SDK manager from accessing the add-on list. Disable them temporarily and try accessing the add-on list again.

If none of these steps work, you can try posting your issue on the Android Studio forum or contacting their support team for further assistance.