Cannot find the key "$key"

[tom-combet]

This exception is thrown when calling setData on my YamlSourceManipulator.
This line in my services.yml seems to cause the issue:

bind:
  $destinationModule: '%app.destination_module%'

Is it a similar case to #608?

[jrushlow]

Can you provide a little bit more detail on the problem? what do you mean calling setData on my YamlSourceManipulator.

If you're using the YamlSourceManipulator outside of the context of maker bundle, please provide a simple reproducer app that we can take a peak at that demonstrates the issue.

[tom-combet]

I wouldn't really know how to explain it clearer... I'm calling setData method on YamlSourceManipulator object, in this very app.

The only detail I find valuable to fix it is the one I provided in the issue description, feel free to ask me if you want more.

[tom-combet]

Should I try to make a PR to fix it?

[weaverryan]

That would be awesome - or at least a failing test - these are fairly well tested here: https://github.com/symfony/maker-bundle/tree/main/tests/Util/yaml_fixtures