Occasional "Unable to watch for file changes in this large workspace" warnings

[ubidefeo]

I occasionally get this warning from a new, bare minimum sketch:

Unable to watch for file changes in this large workspace. Please follow the instructions link to resolve this issue.

There doesn't seem to be any pattern to when I get it. I have a nearly empty sketchbook with only one library installed.

The linked instructions are certainly nothing a beginner would enjoy being exposed to:

https://code.visualstudio.com/docs/setup/linux#_visual-studio-code-is-unable-to-watch-for-file-changes-in-this-large-workspace-error-enospc

It seems like this is a spurious warning and not a good user experience, especially for a beginner who won’t understand how to interpret it and may treat it as a “red herring” for completely unrelated problems they are having (example).

Arduino IDE version

Original report

Unknown

Last verified with

Version: 2.0.0-rc5-snapshot-b069f94
Date: 2022-04-05T09:31:01.231Z
CLI Version: 0.21.0 [10107d24]

Operating system

Windows

Operating system version

10

Additional context

[ originally reported by @per1234 ]

[kittaakos]

Upstream issue: eclipse-theia/theia#9117

[elsatch]

I also stumbled upon this very same error with Blink and other couple of examples opened. I was puzzled by the link, to another platform and apparently unrelated.

[ajworkman64]

I also have this error. Windows 10