{"action":"created","issue":{"url":"https://api.github.com/repos/lxde/lxqt/issues/910","labels_url":"https://api.github.com/repos/lxde/lxqt/issues/910/labels{/name}","comments_url":"https://api.github.com/repos/lxde/lxqt/issues/910/comments","events_url":"https://api.github.com/repos/lxde/lxqt/issues/910/events","html_url":"https://github.com/lxde/lxqt/issues/910","id":119987379,"number":910,"title":"Receiving errors on ubuntu 14.04 after building develop","user":{"login":"ferronrsmith","id":159764,"avatar_url":"https://avatars.githubusercontent.com/u/159764?v=3","gravatar_id":"","url":"https://api.github.com/users/ferronrsmith","html_url":"https://github.com/ferronrsmith","followers_url":"https://api.github.com/users/ferronrsmith/followers","following_url":"https://api.github.com/users/ferronrsmith/following{/other_user}","gists_url":"https://api.github.com/users/ferronrsmith/gists{/gist_id}","starred_url":"https://api.github.com/users/ferronrsmith/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ferronrsmith/subscriptions","organizations_url":"https://api.github.com/users/ferronrsmith/orgs","repos_url":"https://api.github.com/users/ferronrsmith/repos","events_url":"https://api.github.com/users/ferronrsmith/events{/privacy}","received_events_url":"https://api.github.com/users/ferronrsmith/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":2,"created_at":"2015-12-02T16:55:43Z","updated_at":"2015-12-02T22:37:46Z","closed_at":null,"body":"After building the master branch I got the following error :\r\n\r\npcmanfm-qt: symbol lookup error: /usr/local/lib/libfm-qt.so.2: undefined symbol: _ZNK19QAbstractProxyModel15canDropMimeDataEPK9QMimeDataN2Qt10DropActionEiiRK11QModelIndex\r\n\r\nCan anyone point me in the right direction on how to resolve this. I am using Qt 5.5.1 to build `lxqt`\r\n\r\nldd output\r\n\r\n```bash\r\n\tlinux-vdso.so.1 =>  (0x00007ffc7ddfa000)\r\n\tlibQt5Widgets.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 (0x00007fd321370000)\r\n\tlibQt5X11Extras.so.5 => /usr/lib/x86_64-linux-gnu/libQt5X11Extras.so.5 (0x00007fd32116c000)\r\n\tlibfm.so.4 => /usr/local/lib/libfm.so.4 (0x00007fd320f30000)\r\n\tlibgio-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x00007fd320bbd000)\r\n\tlibgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007fd32096c000)\r\n\tlibglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007fd320664000)\r\n\tlibmenu-cache.so.3 => /usr/local/lib/libmenu-cache.so.3 (0x00007fd32045b000)\r\n\tlibQt5Gui.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 (0x00007fd31fe0e000)\r\n\tlibQt5Core.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 (0x00007fd31f768000)\r\n\tlibstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fd31f45c000)\r\n\tlibc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd31f097000)\r\n\tlibpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd31ee79000)\r\n\tlibX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007fd31eb44000)\r\n\tlibm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fd31e83e000)\r\n\tlibexif.so.12 => /usr/lib/x86_64-linux-gnu/libexif.so.12 (0x00007fd31e5fa000)\r\n\tlibdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fd31e3f6000)\r\n\tlibgmodule-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007fd31e1f2000)\r\n\tlibz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fd31dfd9000)\r\n\tlibselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007fd31ddb6000)\r\n\tlibresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007fd31db9b000)\r\n\tlibffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007fd31d993000)\r\n\tlibpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007fd31d755000)\r\n\tlibpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007fd31d52f000)\r\n\tlibharfbuzz.so.0 => /usr/lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x00007fd31d2da000)\r\n\tlibGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 (0x00007fd31d04b000)\r\n\tlibicui18n.so.52 => /usr/lib/x86_64-linux-gnu/libicui18n.so.52 (0x00007fd31cc44000)\r\n\tlibicuuc.so.52 => /usr/lib/x86_64-linux-gnu/libicuuc.so.52 (0x00007fd31c8cb000)\r\n\tlibrt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fd31c6c3000)\r\n\tlibgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fd31c4ac000)\r\n\t/lib64/ld-linux-x86-64.so.2 (0x00007fd321e63000)\r\n\tlibxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007fd31c28d000)\r\n\tlibfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007fd31bfea000)\r\n\tlibgraphite2.so.3 => /usr/lib/x86_64-linux-gnu/libgraphite2.so.3 (0x00007fd31bdce000)\r\n\tlibexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007fd31bba4000)\r\n\tlibglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0 (0x00007fd31b976000)\r\n\tlibXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007fd31b764000)\r\n\tlibXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007fd31b561000)\r\n\tlibXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007fd31b35b000)\r\n\tlibX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007fd31b159000)\r\n\tlibxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 (0x00007fd31af42000)\r\n\tlibxcb-dri2.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0 (0x00007fd31ad3d000)\r\n\tlibxcb-dri3.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri3.so.0 (0x00007fd31ab3a000)\r\n\tlibxcb-present.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-present.so.0 (0x00007fd31a937000)\r\n\tlibxcb-sync.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1 (0x00007fd31a731000)\r\n\tlibxshmfence.so.1 => /usr/lib/x86_64-linux-gnu/libxshmfence.so.1 (0x00007fd31a52f000)\r\n\tlibXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007fd31a329000)\r\n\tlibdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2 (0x00007fd31a11b000)\r\n\tlibicudata.so.52 => /usr/lib/x86_64-linux-gnu/libicudata.so.52 (0x00007fd3188ae000)\r\n\tlibXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007fd3186aa000)\r\n\tlibXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007fd3184a4000)\r\n```"},"comment":{"url":"https://api.github.com/repos/lxde/lxqt/issues/comments/161456223","html_url":"https://github.com/lxde/lxqt/issues/910#issuecomment-161456223","issue_url":"https://api.github.com/repos/lxde/lxqt/issues/910","id":161456223,"user":{"login":"ferronrsmith","id":159764,"avatar_url":"https://avatars.githubusercontent.com/u/159764?v=3","gravatar_id":"","url":"https://api.github.com/users/ferronrsmith","html_url":"https://github.com/ferronrsmith","followers_url":"https://api.github.com/users/ferronrsmith/followers","following_url":"https://api.github.com/users/ferronrsmith/following{/other_user}","gists_url":"https://api.github.com/users/ferronrsmith/gists{/gist_id}","starred_url":"https://api.github.com/users/ferronrsmith/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ferronrsmith/subscriptions","organizations_url":"https://api.github.com/users/ferronrsmith/orgs","repos_url":"https://api.github.com/users/ferronrsmith/repos","events_url":"https://api.github.com/users/ferronrsmith/events{/privacy}","received_events_url":"https://api.github.com/users/ferronrsmith/received_events","type":"User","site_admin":false},"created_at":"2015-12-02T22:37:45Z","updated_at":"2015-12-02T22:37:45Z","body":"I only have 1 version of QT installed ~/Qt/5.5.\r\n\r\nThe `libQt5Core` is used by other applications so that might be causing a conflict\r\n\r\n\r\n`nm -D /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 | egrep canDropMimeData | c++filt`\r\n\r\n```bash\r\n000000000021ad30 T QAbstractItemModel::canDropMimeData(QMimeData const*, Qt::DropAction, int, int, QModelIndex const&) const\r\n```"}}