Good day, dear advanced users of Blender! I am starting to work with Blender and have such occasion. There two objects: -the lighthouse and -the cube. I am trying to create the window in the lighthouse by using Boolean Modifier-> Operation Difference -> Object Cube and immediately I have a message: "Can't execute boolean operation"
The *.blend file is accessible by the link http://wikisend.com/download/612580/lighthouse.bool-error.blend
Please clarify me, how can I create the window due to this operator and why this error appeared?