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Impossible to modified or click in the main.c file for C application project. This bug does not allow to do nothing else in the file.
What exactly happens when you click or modify main.c file? It's impossible to deal with this additional details. Please provide - More detailed description - IDE log file - If IDE hangs (UI is frozen), please provide thread dump (when launched from console, pressing Ctrl-Backslasj (Ctrl-\) dumps all threads; or you can do the same via jstack <PID> command) or at least some subset of the above
The content of the log : java.lang.AssertionError: no language for org.netbeans.modules.editor.NbEditorDocument@6ee918d7, mimeType='text/x-c', kitClass=null, length=212, version=1, file=org.netbeans.modules.cnd.source.CDataObject@39abb7a4[/home/constantin/Documents/NetBeans8Test/CppApplication_Test/main.c@4c6cbdf1:b08f689] at org.netbeans.modules.cnd.source.CppEditorSupport.setupSlowDocumentProperties(CppEditorSupport.java:255) at org.netbeans.modules.cnd.source.CppEditorSupport.access$200(CppEditorSupport.java:106) at org.netbeans.modules.cnd.source.CppEditorSupport$3.run(CppEditorSupport.java:395) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033) Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to at org.openide.util.RequestProcessor.post(RequestProcessor.java:419) at org.netbeans.modules.cnd.source.CppEditorSupport.prepareDocument(CppEditorSupport.java:391) at org.openide.text.CloneableEditorSupport.createCloneableTopComponent(CloneableEditorSupport.java:1021) at org.openide.windows.CloneableOpenSupport.openCloneableTopComponent(CloneableOpenSupport.java:205) at org.openide.windows.CloneableOpenSupport$1.run(CloneableOpenSupport.java:106) at org.openide.util.Mutex.doEvent(Mutex.java:1356) at org.openide.util.Mutex.writeAccess(Mutex.java:462) at org.openide.windows.CloneableOpenSupport.open(CloneableOpenSupport.java:103) at org.openide.text.CloneableEditorSupport.open(CloneableEditorSupport.java:435) at org.openide.awt.ActionDefaultPerfomer.actionPerformed(ActionDefaultPerfomer.java:70) at org.openide.awt.ContextAction$Performer.actionPerformed(ContextAction.java:226) at org.openide.awt.ContextManager.actionPerformed(ContextManager.java:257) at org.openide.awt.ContextAction.actionPerformed(ContextAction.java:109) at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:93) at org.openide.util.actions.ActionInvoker.doPerformAction(ActionInvoker.java:116) at org.openide.util.actions.ActionInvoker.invokeAction(ActionInvoker.java:99) at org.openide.awt.GeneralAction$BaseDelAction.actionPerformed(GeneralAction.java:234) at org.openide.explorer.view.TreeView$PopupSupport.mouseClicked(TreeView.java:1625) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:270) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:269) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:269) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:269) at java.awt.Component.processMouseEvent(Component.java:6532) at javax.swing.JComponent.processMouseEvent(JComponent.java:3321) at java.awt.Component.processEvent(Component.java:6294) at java.awt.Container.processEvent(Container.java:2235) at java.awt.Component.dispatchEventImpl(Component.java:4885) at java.awt.Container.dispatchEventImpl(Container.java:2293) at java.awt.Component.dispatchEvent(Component.java:4707) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4877) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4542) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462) at java.awt.Container.dispatchEventImpl(Container.java:2279) at java.awt.Window.dispatchEventImpl(Window.java:2741) at java.awt.Component.dispatchEvent(Component.java:4707) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:746) at java.awt.EventQueue.access$400(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:697) at java.awt.EventQueue$3.run(EventQueue.java:691) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:719) at java.awt.EventQueue$4.run(EventQueue.java:717) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) at java.awt.EventQueue.dispatchEvent(EventQueue.java:716) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:220) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:135) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:123) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:119) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:111) [catch] at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)
(In reply to _ pandajava from comment #2) > The content of the log : > > java.lang.AssertionError: no language for Please attach full log. Part of IDE log does not allow to understand: - IDE version - IDE modules - related errors Thanks for understanding.