Dwarf Fortress Bug Tracker - Dwarf Fortress
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0004282Dwarf FortressDwarf Mode -- Jobs, Building Construction and Destructionpublic2011-03-21 07:132011-03-31 19:10
resolvedno change required 
0004282: It says "item blocking site" when there is no item there
When I get a message saying that construction of a building has been suspended due to "item blocking site", it's almost always a wall that used to have items on the site, but now does NOT because the dwarves have already cleared them away. And the construction is nearly done.
Build walls in places with items, especially where there are multiple items on a square.
No tags attached.
related to 0001027resolved Toady One Items tied up by suspended jobs don't have the TSK indicator 
Issue History
2011-03-21 07:13GreenSpinachNew Issue
2011-03-21 07:18FootkerchiefNote Added: 0016442
2011-03-21 07:19FootkerchiefTag Attached: AWAITING UPDATE
2011-03-21 07:19FootkerchiefRelationship addedrelated to 0000127
2011-03-21 07:19FootkerchiefRelationship deletedrelated to 0000127
2011-03-21 07:19FootkerchiefRelationship addedrelated to 0001027
2011-03-22 07:51InfiltratorNote Added: 0016474
2011-03-22 07:51InfiltratorIssue Monitored: Infiltrator
2011-03-30 10:32FootkerchiefStatusnew => resolved
2011-03-30 10:32FootkerchiefResolutionopen => no change required
2011-03-30 10:32FootkerchiefAssigned To => Footkerchief
2011-03-31 19:10DwarfuTag Detached: AWAITING UPDATE

2011-03-21 07:18   
Reminder sent to: GreenSpinach

Are you sure there are no hidden items on the site? Are you sure you're getting the cancellation message for a particular wall AFTER dwarves have cleared the items away from that specific wall?
2011-03-22 07:51   
Indeed. What happens if you now unsuspend the wall? What often happens to me is that I build walls on top of rocks (which uses those rocks) and that causes suspensions in about half the walls.