I am new to Unity 3D, and recently all default Unity tutorials stopped displaying under Unity → Learn → Tutorial Projects. Instead, it throws error message "The tutorials could not be loaded", and all research towards this issues leads to dead end.
Interestingly, the other options viz "Resources" and "Links" are also not working and throws up similar error messages.
I am using Unity version 2018.3.0f2.
I have made sure the internet is working, and Googled and searched Unity support website for possible resolution but all efforts have been futile thus far. I even tried uninstalling and reinstalling Unity but still there are no tutorials there or the error message is still there.
I have tried the steps mentioned in this post and followed the procedure of changing the option under Edit → Project Settings → Editor → Version Control Mode → Visible Meta Files; and switched to Force Text in Edit → Project Settings → Editor → Asset Serialization Mode, and none of this fixes the problem.