Hello. I have installed 1C 8.3.27.1859  version and trying to merge standart subsystem library version 3_1_11_366.
I tried everything that i know. I have no success. Please help.
I am adding every step that i followed and error report in attachment.

Hello!

Outwardly, everything looks correct. I am a little concerned about the library version, however...

We do not have this specific version available for download on our website: (https://1c-dn.com/user/updates/1c_subsystems_library/).

I can suggest a couple of options:

1. First, try using the newer version 3.1.11.392.

2. When using it for the first time, DO NOT enable all subsystems! For testing purposes, enable only "Addititional reports and data processors", for example.