Possible solution to Arduino 2.0.0 error

[Proebyte]

Describe the problem

Hello dear programmer;
Problem is:
Made in Arduino version 2.0.0
grpc: error while marshaling: proto: Marshal called with nil Compilation error: grpc: error while marshaling: proto: Marshal called with nil is a problem that takes some effort to solve.

To reproduce

------------------------Solution-----------------------

The solution to this problem is a little tricky, but also a little simple. Say the solution:
You need to download this library.
->Arduino AVR Boards

Expected behavior

------------------------------Expected behavior----------------------------------

After downloading it should not give the error. If it still does, replace the COM. If you change it but it gives an error, you can check the arduino web page or the articles written under this title.
Have a nice day

Arduino CLI version

2.0.0

Operating system

Windows

Operating system version

Windows 10 home

Additional context

No response

Issue checklist

• I searched for previous reports in the issue tracker
• I verified the problem still occurs when using the nightly build
• My report contains all necessary details

[per1234]

Thanks @Proebyte. The solution to this error message is to select a board from the Tools > Board menu.

There is a bug that causes it to be this cryptic message:

grpc: error while marshaling: proto: Marshal called with nil Compilation error: grpc: error while marshaling: proto: Marshal called with nil

Instead of the intended message:

Missing FQBN (Fully Qualified Board Name)

Compilation error: Missing FQBN (Fully Qualified Board Name)

We are tracking that here: #1812

We are also tracking the fact that even the intended message is not very clear here: arduino/arduino-ide#62