Kilns can't be disassembled

[*Wiro]

ERROR: You can't disassemble this object, because its existence is required by

[Greek]

The root of the problem is when machine/object is required to be in location to build something (for example have masts to build sails or have kiln to burn a flowerpot), then it should not be possible to disassemble the machine when it's "supporting" such project or object.

We had two bugs here.
It makes sense for fixed objects, but the same rule was applied to portable ones. So it was impossible to disassemble kiln because there was a ceramic plate on the ground - that was the first bug. The second was incorrect error message, which should inform which object is the cause of the problem.

Both bugs should be fixed now. Please post again if something is still not ok.

[*Wiro]

All fixed. Thank you!