Retrieving problem from Salesforce Org because of Trigger part in VSCode.
Hi "those who want to see the problem solved",
I had a problem with retrieving sources from Org. I did not aware of the files in the Trigger. When I retrieved the package.xml source from Org, I got the error. After checking the error message, I understood the problem where it is. I just carried the trigger part into the other part folder. Then retrieved successfully. And done.