![]() ![]() Then, set that object's Class in IB to be your custom class. The solution was to delete the default UIViewController object from the Storyboard, then add a new UITableViewController. Adding to appdelegate applicatoindidfinishlanching method. It would not autocomplete my class name, and then gave the Unknown class in Interface Builder file error when run.Somebody suggests that we insert "-all_load -ObjC" to Other Linker Flags.Going to TARGETS > Build Phases > Compile Sources to make sure that all classes are listed.Anyway, what I have done so far is the following. Whether or not the message is an error or a warning indicator, application performance is not affected at all. ![]() Even when ViewController segue-connects the second one, the message is the same - unknown class item. Iâve done a search using SublimeText2 for the string 'MyView' and it doesnât exist anywhere in the project. I couldnât work out what was wrong so I have now deleted the files both from the project and from the directory. The thing is that I don't have that 'item.' The names of the classes that are associated with this warning message is ItemViewController and UpdateViewController. 'Unknown Window class (null) in Interface Builder file, creating generic Window instead' This happens in all Cocoa projects it seems at the moment. Unknown Class MyView in Interface Builder file. but during building it shows that 'unknown class LoginScreenlet in interface builder file xcode'. TtC11Checkvistle13GADBannerView -> My module is named Checkvistle and the class name is GADBannerView. and set delegate in view controller file. Unknown class TtC11Checkvistle13GADBannerView in Interface Builder file. When i am setting login screenlet in interface builder of xcode 9. ![]() I've read a lot of topics related to this unknown class warning. i am using liferay screen 3.1.0 version with liferay dxp. Every time the freeform window opens associated with either of two classes, I get an error (or warning) message that says " Unknown class item in Interface Builder file" in the Output window. Find your unknown class name in the source file. 15:23:31.124 TheFoodTracker4620:1547622 Terminating app due to uncaught exception NSUnknownKeyException, reason: setValue:forUndefinedKey:: this class is not key value coding-compliant.In order to fix such scenarios, Open interface builder class as Source Code by right clicking on it (Open As -> Source Code). Unknown class MealViewController in Interface Builder file. It is also the name that shows up in your generated Swift-Header: #import "TARGETNAME-Swift.I have the segue connection to 6 to 7 freeform popover windows within ViewController. The warning may be because you have assigned a removed/deleted custom class name for one of the UIView subclass. What I had to do was to change the class reference in IB from: Class = Model This object was used in Interface Builder with the class = Model.Īs soon as I replaced the object the class could no longer be loaded. I changed a class Model.h + Model.m to a Model.swift. Interestingly the app runs perfectly in teh simulator, but crashed on my phone. I haven't changed any class names or storyboards. 15:23:31.124 TheFoodTracker4620:1547622 Terminating app due to uncaught exception 'NSUnknownKeyException', reason: ' setValue:forUndefinedKey:: this class is not key value coding. However I've noticed that the dreaded 'Unknown class in Interface Builder file' is crashing my app.![]() I did run into this problem today using Swift. 15:23:31.116 TheFoodTracker4620:1547622 Unknown class MealViewController in Interface Builder file. In order to fix such scenarios, Open interface builder class as Source Code by right clicking on it (Open As -> Source Code).įind your unknown class name in the source file. The warning may be because you have assigned a removed/deleted custom class name for one of the UIView subclass. If this doesn't help, you likely have a reference to a class in the nib or storyboard that you have to manually find and remove. It would not autocomplete my class name, and then gave the Unknown class in Interface Builder fileerror when run.
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