{"action":"created","issue":{"url":"https://api.github.com/repos/JuliaOpt/Xpress.jl/issues/2","repository_url":"https://api.github.com/repos/JuliaOpt/Xpress.jl","labels_url":"https://api.github.com/repos/JuliaOpt/Xpress.jl/issues/2/labels{/name}","comments_url":"https://api.github.com/repos/JuliaOpt/Xpress.jl/issues/2/comments","events_url":"https://api.github.com/repos/JuliaOpt/Xpress.jl/issues/2/events","html_url":"https://github.com/JuliaOpt/Xpress.jl/issues/2","id":163681144,"number":2,"title":"semi-infinite variables","user":{"login":"mlubin","id":1733683,"avatar_url":"https://avatars.githubusercontent.com/u/1733683?v=3","gravatar_id":"","url":"https://api.github.com/users/mlubin","html_url":"https://github.com/mlubin","followers_url":"https://api.github.com/users/mlubin/followers","following_url":"https://api.github.com/users/mlubin/following{/other_user}","gists_url":"https://api.github.com/users/mlubin/gists{/gist_id}","starred_url":"https://api.github.com/users/mlubin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mlubin/subscriptions","organizations_url":"https://api.github.com/users/mlubin/orgs","repos_url":"https://api.github.com/users/mlubin/repos","events_url":"https://api.github.com/users/mlubin/events{/privacy}","received_events_url":"https://api.github.com/users/mlubin/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2016-07-04T13:50:38Z","updated_at":"2016-07-04T17:25:59Z","closed_at":null,"body":"If I set ``semi_solvers = [XpressSolver()]`` in ``test/jump.jl``, I get the following failure:\r\n```jl\r\n[model] Test semi-integer variables\r\n  > With solver Xpress.XpressSolver\r\n\r\nReading Problem \r\nProblem Statistics\r\n           0 (      0 spare) rows\r\n           0 (      0 spare) structural columns\r\n           0 (      0 spare) non-zero elements\r\nGlobal Statistics\r\n           0 entities        0 sets        0 set members\r\n\r\nReading Problem \r\nProblem Statistics\r\n           0 (      0 spare) rows\r\n           0 (      0 spare) structural columns\r\n           0 (      0 spare) non-zero elements\r\nGlobal Statistics\r\n           0 entities        0 sets        0 set members\r\n?427 Error: Invalid column type passed to XPRSchgcoltype.\r\nElement 0 of your array has invalid column type N\r\nERROR: LoadError: LoadError: Xpress.XpressError(0,\"?427 Error: Invalid column type passed to XPRSchgcoltype.\\nElement 0 of your array has invalid column type N\")\r\n in chgcoltypes! at /home/mlubin/.julia/v0.4/Xpress/src/xprs_vars.jl:61\r\n in setvartype! at /home/mlubin/.julia/v0.4/Xpress/src/XpressSolverInterface.jl:323\r\n in build at /home/mlubin/.julia/v0.4/JuMP/src/solvers.jl:405\r\n in solve at /home/mlubin/.julia/v0.4/JuMP/src/solvers.jl:134\r\n in anonymous at /home/mlubin/.julia/v0.4/JuMP/test/model.jl:643\r\n in context at /home/mlubin/.julia/v0.4/FactCheck/src/FactCheck.jl:475\r\n in anonymous at /home/mlubin/.julia/v0.4/JuMP/test/model.jl:637\r\n in facts at /home/mlubin/.julia/v0.4/FactCheck/src/FactCheck.jl:449\r\n in include at ./boot.jl:261\r\n in include_from_node1 at ./loading.jl:320\r\n in include at ./boot.jl:261\r\n in include_from_node1 at ./loading.jl:320\r\n in process_options at ./client.jl:280\r\n in _start at ./client.jl:378\r\nwhile loading /home/mlubin/.julia/v0.4/JuMP/test/model.jl, in expression starting on line 635\r\nwhile loading /home/mlubin/.julia/v0.4/Xpress/test/jump.jl, in expression starting on line 11\r\n```"},"comment":{"url":"https://api.github.com/repos/JuliaOpt/Xpress.jl/issues/comments/230331150","html_url":"https://github.com/JuliaOpt/Xpress.jl/issues/2#issuecomment-230331150","issue_url":"https://api.github.com/repos/JuliaOpt/Xpress.jl/issues/2","id":230331150,"user":{"login":"joaquimg","id":13870065,"avatar_url":"https://avatars.githubusercontent.com/u/13870065?v=3","gravatar_id":"","url":"https://api.github.com/users/joaquimg","html_url":"https://github.com/joaquimg","followers_url":"https://api.github.com/users/joaquimg/followers","following_url":"https://api.github.com/users/joaquimg/following{/other_user}","gists_url":"https://api.github.com/users/joaquimg/gists{/gist_id}","starred_url":"https://api.github.com/users/joaquimg/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/joaquimg/subscriptions","organizations_url":"https://api.github.com/users/joaquimg/orgs","repos_url":"https://api.github.com/users/joaquimg/repos","events_url":"https://api.github.com/users/joaquimg/events{/privacy}","received_events_url":"https://api.github.com/users/joaquimg/received_events","type":"User","site_admin":false},"created_at":"2016-07-04T17:25:59Z","updated_at":"2016-07-04T17:25:59Z","body":"It seems that Xpress will change the lower bound to 1, so bounds would have to be updated after the modification.\r\n\r\nsee page 132 of:\r\nhttps://www.msi-jp.com/xpress/learning/square/optimizer-2015.pdf"}}
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