Hi,
I have followed this tutorial when converting Sentinel-2 L1C to L2A Sen2cor (detailled instructions) but the issue still remain as follows:
L1C user product directory must match the following mask: S2?_MSIL1C.SAFE*
but is: MTD_MSIL1C.xml
Finished tool execution in 1 seconds
The folder name:
and the documents within the folder:

There was no working at all when inputting ‘MTD_MSIL1C.xml’ through Sen2cor I/O Parameters.
I also put .SAFE file in C drive for less subfolders of path, which was not working.
Really don’t know what I can do further to make it work. Any suggestions will be appreciated!