Configuring framework.ide when xdebug.file_link_format is set causes exception.

[j4nr6n]

Symfony version(s) affected: 4.2

Description
I did this:

framework:
    ide: '%env(IDE_PATH)%'

and this:

xdebug.file_link_format = "phpstorm://open?url=file://%f&line=%l"

and got this:

I'm not sure what I expected to happen. I didn't expect an exception by overriding an environment variable though.

How to reproduce
The good news is, there's a reproducer app.
The bad news is you have to set xdebug.file_link_format to get the error.

Possible Solution
¯\_(ツ)_/¯

[nicolas-grekas]

you can work around this by either adding IDE_PATH= in your .env file or defining a parameter named env(IDE_PATH) in you services.yaml file.

Otherwise, the behavior is consistent with the behavior of env vars, no bug here.

[nicolas-grekas]

Got it, see #31302