Arduino 2.0 Beta Shows Error

Hello, I installed Arduino 2.0 Beta and opened it, it shows below error,

Furhter i am not able to create new file and also not able to open older arduino code. When i go to boards there were no boards.
Can anyone help me.. Pls
Thanks
Deepesh

@DeepeshPatidar, your topic was moved to a more suitable location on the forum.

This sort of error could be caused by your antivirus software. Try TEMPORARILY disabling your antivirus for a single compilation to see if the problem goes away, then turn the antivirus back on.

If the problem doesn't occur with the antivirus off you will need to adjust the settings of your antivirus to put the appropriate file, folder, or process on the "allow list" so it doesn't interfere with compilation.

Please be cautious about working without an antivirus. This is only about temporarily disabling it for a quick test. If you don't feel comfortable doing that, fine. You can try going straight to configuring the antivirus to not interfere with the Arduino software.