>
> Hi everyone,
>
> The CI failure is occurring at the step:
>
> *sudo apt install -y protobuf-compiler*
>
> The logs show that the runner was trying to download version
> *3.21.12-8.2ubuntu0.2*, but Ubuntu has since released
> *3.21.12-8.2ubuntu0.3* and removed the older package from the mirrors.
> Because the package index on the runner was not refreshed, it attempted to
> fetch a version that no longer exists, which resulted in the 404 error.
>
Running apt-get update before this command refreshes the package metadata
> so it installs the currently available version instead of the removed one.
>
> I suggest updating the workflow to:
>
> sudo apt-get update
> sudo apt-get install -y protobuf-compiler
>
> I will create an issue and submit a PR with the fix.
>
> Best,
> Prathamesh
>
