No valid DataKeys (Scenario / Time) found in data source.

Hello everyone,

I'm trying to create my first import from scratch.

Unfortunately, it always gives me the same error :

No valid DataKeys (Scenario / Time) found in data source. Review the source data load processing log and check one-to-one transformation rules to ensure that you have created proper Scenario and Time dimension rules for this data source.

And no line is imported or displayed in the logs.
However, I've gone down each parameter and everything seems correct and consistent with what I have on other import files.

Could you help me investigate?

My settings :

All the UD1 to UD8 are on None.

And the log :