{"action":"created","issue":{"url":"https://api.github.com/repos/ucb-bar/chisel3/issues/305","repository_url":"https://api.github.com/repos/ucb-bar/chisel3","labels_url":"https://api.github.com/repos/ucb-bar/chisel3/issues/305/labels{/name}","comments_url":"https://api.github.com/repos/ucb-bar/chisel3/issues/305/comments","events_url":"https://api.github.com/repos/ucb-bar/chisel3/issues/305/events","html_url":"https://github.com/ucb-bar/chisel3/issues/305","id":180413355,"number":305,"title":"Not bound to synthesizable node?","user":{"login":"donggyukim","id":5387248,"avatar_url":"https://avatars.githubusercontent.com/u/5387248?v=3","gravatar_id":"","url":"https://api.github.com/users/donggyukim","html_url":"https://github.com/donggyukim","followers_url":"https://api.github.com/users/donggyukim/followers","following_url":"https://api.github.com/users/donggyukim/following{/other_user}","gists_url":"https://api.github.com/users/donggyukim/gists{/gist_id}","starred_url":"https://api.github.com/users/donggyukim/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/donggyukim/subscriptions","organizations_url":"https://api.github.com/users/donggyukim/orgs","repos_url":"https://api.github.com/users/donggyukim/repos","events_url":"https://api.github.com/users/donggyukim/events{/privacy}","received_events_url":"https://api.github.com/users/donggyukim/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":4,"created_at":"2016-09-30T22:14:54Z","updated_at":"2016-09-30T22:29:14Z","closed_at":null,"body":"I got an error with a previously working design as follows:\r\n\r\n[info]   chisel3.core.Binding$BindingException: 'that' (chisel3.util.DecoupledIO@42f).bits: Not bound to synthesizable node, currently only Type description\r\n[info]   at chisel3.core.Binding$.checkSynthesizable(Binding.scala:155)\r\n[info]   at chisel3.core.Data.bulkConnect(Data.scala:142)\r\n[info]   at chisel3.core.Data.$less$greater(Data.scala:170)\r\n[info]   at strober.Channel.<init>(sim.scala:62)\r\n[info]   at strober.SimUtils$$anonfun$genChannels$1$$anonfun$1.apply(util.scala:47)\r\n[info]   at strober.SimUtils$$anonfun$genChannels$1$$anonfun$1.apply(util.scala:47)\r\n[info]   at chisel3.core.Module$.do_apply(Module.scala:29)\r\n[info]   at strober.SimUtils$$anonfun$genChannels$1.apply(util.scala:47)\r\n[info]   at strober.SimUtils$$anonfun$genChannels$1.apply(util.scala:45)\r\n[info]   at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:245)\r\n\r\nWhat am I supposed to do to fix this?"},"comment":{"url":"https://api.github.com/repos/ucb-bar/chisel3/issues/comments/250867006","html_url":"https://github.com/ucb-bar/chisel3/issues/305#issuecomment-250867006","issue_url":"https://api.github.com/repos/ucb-bar/chisel3/issues/305","id":250867006,"user":{"login":"donggyukim","id":5387248,"avatar_url":"https://avatars.githubusercontent.com/u/5387248?v=3","gravatar_id":"","url":"https://api.github.com/users/donggyukim","html_url":"https://github.com/donggyukim","followers_url":"https://api.github.com/users/donggyukim/followers","following_url":"https://api.github.com/users/donggyukim/following{/other_user}","gists_url":"https://api.github.com/users/donggyukim/gists{/gist_id}","starred_url":"https://api.github.com/users/donggyukim/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/donggyukim/subscriptions","organizations_url":"https://api.github.com/users/donggyukim/orgs","repos_url":"https://api.github.com/users/donggyukim/repos","events_url":"https://api.github.com/users/donggyukim/events{/privacy}","received_events_url":"https://api.github.com/users/donggyukim/received_events","type":"User","site_admin":false},"created_at":"2016-09-30T22:29:14Z","updated_at":"2016-09-30T22:29:14Z","body":"It turns out that io definitions without `IO` can cause these wired errors. I think there should be warnings for not using it."}}
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