If an error occurs, Blender outputs its description to the system console and show a message with the following text:
… errors in … (see Blender Console)
What is this “Blender Console” in which we need to see the full error description text?
The difficulties to find it arise because there are several different types of consoles in the Blender interface, and at first, it is completely unclear which one to look for the errors Most often, the “Blender Console” is confused with the “Blender Python console” area or the “Info console” area.
Error details are not displayed in these areas!
To see the required “Blender Console” with the errors text, choose in the Blender main menu:
Window – Toggle System Console
This will open a new window with the desired console, which will display the full errors text.