Pimple\Container was used as the keyword for the top use, but this file can't find in my local directory because In my editor, the Pimple is displayed in red in the use-Pimple\Container section, and is "Undefined namespace is not Referenced" Nevertheless, the code on the screen does not produce an error and acts as if it were a file.
My guess is that It's an external library but no matter how you look at it, it makes me curious Is this normal? Or What have I missed?
thanks DeepDriver1975, i'm solved I thought of a composer when i saw your upload image but I thought the dependencies were well-installed because I had already used the "make" command you told me. but in the end, It was a composer problem.
I installed a composer and used the composer install command, and when a lot of files were downloaded, the red pimple letters naturally turned black.
i don't know the exact cause, but ... It seems difficult to jump in without a general understanding