Xamarin iOS using MVVMCross crashes with not key-value coding compliant

I am building a simple todo app as a demo in Xamarin iOS using MVVMCross. I have built a very similar app in the recent past with no issues. This particular one will not load the first view controller from nib and throws a “this class is not key-value coding compliant for key {control name here}” right away. I have tried rebuilding the nib files, the view controllers and have built the app from scratch multiple times but I cannot get past this issue. I have looked through the documentation and examined many of the demo apps and I cannot find the solution, I am sure it is a simple step I am overlooking somewhere. Any ideas what I might be missing?

The project source is available here.

This is the error

enter image description here

I have double and triple checked the .designer file for errors and to insure the outlets are present.

Here is my first ViewController loaded from a nib

namespace VTSToDoList.iOS.Views { public partial class ToDoListsViewController : MvxViewController<ToDoListViewModel> {     private UIRefreshControl _refreshControl;       public ToDoListsViewController() : base("ToDoListsViewController_View", null)     {      }      public override void ViewDidAppear(bool animated)     {         base.ViewDidAppear(animated);          Refresh();     }      public override void ViewDidLoad()     {         base.ViewDidLoad();          NavigationItem.Title = "Your To Do Lists";          var tableViewSource = new MvxSimpleTableViewSource(ListTableView, nameof(ToDoListsViewController), ToDoListTableViewCell.Key)         {             DeselectAutomatically = true         };         ListTableView.RowHeight = 120;          this.CreateBinding(tableViewSource).To<ToDoListViewModel>(vm => vm.Items).Apply();         this.CreateBinding(this.NewListButton).To<ToDoListViewModel>(vm => vm.AddNewToDoListCommand).Apply();          ListTableView.Source = tableViewSource;         ListTableView.ReloadData();          this.CreateBinding(tableViewSource).For(s => s.SelectionChangedCommand).To<ToDoListViewModel>(vm => vm.ItemSelectedCommand).Apply();          // Create the UIRefreshControl         _refreshControl = new UIRefreshControl();          // Handle the pullDownToRefresh event         _refreshControl.ValueChanged += (object sender, EventArgs e) =>         {             Refresh();         };          // Add the UIRefreshControl to the TableView         ListTableView.AddSubview(_refreshControl);     }      private void Refresh()     {         ViewModel.ReloadDataCommand.Execute(null);         ListTableView.ReloadData();         _refreshControl.EndRefreshing();     } } } 

The View Model

namespace VTSToDoList.Core.ViewModels {  public class ToDoListViewModel : MvxViewModel {     private readonly IMvxNavigationService _navigationService;      public ToDoListViewModel(IMvxNavigationService navigationService)     {         _navigationService = navigationService;         Items = new List<ToDoListModel>();     }      public override async Task Initialize()     {         await base.Initialize();     }      private bool _isEmptyListViewHidden;     public bool IsEmptyListViewHidden     {         get { return _isEmptyListViewHidden; }         set { _isEmptyListViewHidden = value; RaisePropertyChanged(() => IsEmptyListViewHidden); }     }      private bool _isLoading;     public bool IsLoading     {         get { return _isLoading; }         set { _isLoading = value; RaisePropertyChanged(() => IsLoading); }     }      private List<ToDoListModel> _items;     public List<ToDoListModel> Items     {         get { return _items; }         set { _items = value; RaisePropertyChanged(() => Items); }     }      public override void Start()     {         LoadData();     }      private void LoadData()     {         IsLoading = true;         IsEmptyListViewHidden = false;          Task.Run(async () =>         {             var items = await LocalAppStore.Instance.GetItemsAsync();             Items = items;              if (Items.Count > 0)             {                 IsEmptyListViewHidden = false;             }              IsLoading = false;         });     }      private MvvmCross.Commands.MvxCommand _reloadDataCommand;     public System.Windows.Input.ICommand ReloadDataCommand     {         get         {             _reloadDataCommand = _reloadDataCommand ?? new MvvmCross.Commands.MvxCommand(LoadData);             return _reloadDataCommand;         }     }      private MvvmCross.Commands.MvxCommand _addNewToDoListCommand;     public System.Windows.Input.ICommand AddNewToDoListCommand     {         get         {             _addNewToDoListCommand = _addNewToDoListCommand ?? new MvvmCross.Commands.MvxCommand(NavigateToToDoListDetailAsync);             return _addNewToDoListCommand;         }     }      private MvvmCross.Commands.MvxCommand<ToDoListModel> _itemSelectedCommand;     public System.Windows.Input.ICommand ItemSelectedCommand     {         get         {             _itemSelectedCommand = _itemSelectedCommand ?? new MvvmCross.Commands.MvxCommand<ToDoListModel>(DoSelectItem);             return _itemSelectedCommand;         }     }      private void DoSelectItem(ToDoListModel item)     {         _navigationService.Navigate<ToDoListDetailViewModel, ToDoListModel>(item);     }      private void NavigateToToDoListDetailAsync()     {         _navigationService.Navigate<ToDoListDetailViewModel, ToDoListModel>(new ToDoListModel());     }  } } 

Unable to install Ubuntu via usb,unable to find cd rom,then installer crashes

I have an old Dell Precision M60 without PAE support.I tried installing Ubuntu 11.04. Installer starts,but after some time,it says Unable to configure apt from cd rom,so i close that option and after few seconds,a popup comes that installer crashed.

I m installing it via usb,so how can i get a CD rom for it,i tried burining iso,but my laptop is old,it cannot boot from CD’s sometimes.

I m trying to install from past 2 days…using different versions but same thing is happening..

Plz help!

Browser crashes while using OffscreenCanvas.convertToBlob method large file in web worker

I’m trying to show Tiff File in browser, i successfully read Tiff using UTIF.js file, Where I am using Web worker to read Tiff format file . Some files are very large like 10,000 px height and 13,000 width, I need to show them in browser. Browser crashes while executing code OffscreenCanvas.convertToBlob method which return Promise object.

This is where i used Web Worker and Offscreencanvas , I have tried convertToBlob method with different parameter such as quality .6 and less also but still browser crashing.

UTIF.decodeImage(ubuf,utif[k]); var ubuf1 =UTIF.toRGBA8(utif[k]); var a =  new Uint8ClampedArray(ubuf1); var imgData = new ImageData(a,utif[k].width,utif[k].height); var canvas1 = new OffscreenCanvas(utif[k].width,utif[k].height); var ctx = canvas1.getContext('2d'); ctx.putImageData(imgData,0,0); var that = self; if(utif[k].width >2048) { canvas1.convertToBlob({type : "image/jpeg", quality : 0.3 }).then(function(blob) { that.postMessage(blob);                    }); } else { canvas1.convertToBlob( {type : "image/jpeg", quality : 1 }).then(function(blob) { that.postMessage(blob);                    }); } 

I am expecting browser should not crashes in large file scenario.

THanks a Lot in Advance.

App crashes in landscape mode

My gallery app crashes whenever I watch a video and go landscape mode and when I tap the (…) it crashes and forces me at the home screen saying (Unfortunately, Gallery has stopped). It’s not only in gallery but also in all apps that needs to go landscape and has pop up tabs or screens. Is there a way to fix this? By the way, if that’s still not enough info, you can check the youtube link to see my real problem

Minecraft launcher crashes after trying to start a game

I have openjdk version “1.8.0_212”
OpenJDK Runtime Environment (build 1.8.0_212-8u212-b03-0ubuntu1.19.04.2-b03)
OpenJDK 64-Bit Server VM (build 25.212-b03, mixed mode)
and Ubuntu 19.04 with latest LXqT on top of it(Lubuntu) Everytime when I try to load the newest version from the launcher it crashes and returns with this message in crash report: https://paste.ubuntu.com/p/hh8wSCZWrx/ Ive tried reinstalling openjdk to newer and also older version but no luck. Any ideas please?

VBA code to underline numbers in the header takes significant time and sometimes crashes excel


For several of my workbooks I run Overview sheets with charts in them. When printing the Overview sheet, I put my workbook name as header, where the workbook name includes the criteria for the generating the source data (e.g., date range and time stamp plus non-numeric strings).

To draw attention to these numbers/dates/times, I can manually highlight on the print out, but when others print (using a button on the Overview sheet) they don’t seem to remember to do that.

I am looking to add some “flare” to my header by underlining the numeric values.


The workbook name character length varies, so I assess character by character. In some cases the code executes after a delay (time varies, but will say that I had a 60 character length name take ~30 seconds), and other times Excel simply doesn’t complete execution after several minutes (i will press escape and get the “code execution has been interupted” msgbox; this recently happened for a 48 character name).


As this is working code (sometimes), would you please help critique and possibly help resolve the time delay?

If my approach is inferior, I am open to suggestions, though I understand that, from my time on StackOverflow, subjective questions tend to be closed.

Code in question:

Option Explicit  Sub underline_numbers_in_header()     Dim i As Long, n As String, z As String     n = ActiveWorkbook.Name     'Debug.Print Len(n)     For i = 1 To Len(n)         If IsNumeric(Mid(n, i, 1)) Then             z = z & "&U" & Mid(n, i, 1) & "&U"         Else             z = z & Mid(n, i, 1)         End If         ActiveSheet.PageSetup.CenterHeader = "" & z & ""     Next i End Sub 

iMovie crashes on first startup

I have just downloaded iMovie on my new Mac (I had it on the old one) and it is not able to open. I crashes as soon as I click. I have also tried to restart, to login with the guest account and to delete preferences holding the option. This is the log:

Process:               iMovie [6036] Path:                  /Applications/iMovie.app/Contents/MacOS/iMovie Identifier:            com.apple.iMovieApp Version:               10.1.11 (342230) Build Info:            iMovieX-34223000026000000~1 App Item ID:           408981434 App External ID:       830553401 Code Type:             X86-64 (Native) Parent Process:        ??? [1] Responsible:           iMovie [6036] User ID:               501  Date/Time:             2019-05-31 11:16:13.914 +0200 OS Version:            Mac OS X 10.14.3 (18D109) Report Version:        12 Anonymous UUID:        FEEE32BA-8987-DC30-0566-68E4E8A8BDE9  Sleep/Wake UUID:       7E96D044-E8C5-4D6C-90E9-65B7216ACF4E  Time Awake Since Boot: 15000 seconds Time Since Wake:       1700 seconds  System Integrity Protection: enabled  Crashed Thread:        0  Dispatch queue: com.apple.main-thread  Exception Type:        EXC_CRASH (SIGABRT) Exception Codes:       0x0000000000000000, 0x0000000000000000 Exception Note:        EXC_CORPSE_NOTIFY  Application Specific Information: /Applications/iMovie.app/Contents/MacOS/../Frameworks/ProGraphics.framework/Versions/A/ProGraphics abort() called  Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0   libsystem_kernel.dylib          0x00007fff63fa723e __pthread_kill + 10 1   libsystem_pthread.dylib         0x00007fff6405dc1c pthread_kill + 285 2   libsystem_c.dylib               0x00007fff63f101c9 abort + 127 3   com.apple.procore.framework     0x000000010ec12511 pcAbortImpl + 9 4   com.apple.ProGraphics           0x000000011bddb15a (anonymous namespace)::PGInfoImpl::instance() + 730 5   dyld                            0x0000000115b59cc8 ImageLoaderMachO::doModInitFunctions(ImageLoader::LinkContext const&) + 518 6   dyld                            0x0000000115b59ec6 ImageLoaderMachO::doInitialization(ImageLoader::LinkContext const&) + 40 7   dyld                            0x0000000115b550da ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, char const*, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 358 8   dyld                            0x0000000115b5506d ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, char const*, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 249 9   dyld                            0x0000000115b5506d ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, char const*, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 249 10  dyld                            0x0000000115b54254 ImageLoader::processInitializers(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) + 134 11  dyld                            0x0000000115b542e8 ImageLoader::runInitializers(ImageLoader::LinkContext const&, ImageLoader::InitializerTimingList&) + 74 12  dyld                            0x0000000115b46d20 dyld::runInitializers(ImageLoader*) + 82 13  dyld                            0x0000000115b5075f dlopen_internal + 609 14  libdyld.dylib                   0x00007fff63e5362f dlopen + 200 15  com.apple.CoreFoundation        0x00007fff36c3beae _CFBundleDlfcnLoadBundle + 148 16  com.apple.CoreFoundation        0x00007fff36cdbca3 _CFBundleLoadExecutableAndReturnError + 519 17  com.apple.Foundation            0x00007fff390080a0 -[NSBundle loadAndReturnError:] + 481 18  com.apple.Flexo                 0x000000010f0a3652 +[FFPluginDirectoryScanner _scanDirectory:withExtension:scanned:delegate:didLoadSelector:] + 930 19  com.apple.Flexo                 0x000000010f0a3b2b +[FFPluginDirectoryScanner scanForPluginsInDirectory:withExtension:delegate:didLoadSelector:] + 1067 20  libobjc.A.dylib                 0x00007fff62d9c248 CALLING_SOME_+initialize_METHOD + 19 21  libobjc.A.dylib                 0x00007fff62d8c00c _class_initialize + 282 22  libobjc.A.dylib                 0x00007fff62d8bf42 _class_initialize + 80 23  libobjc.A.dylib                 0x00007fff62d8ba19 lookUpImpOrForward + 238 24  libobjc.A.dylib                 0x00007fff62d8b494 _objc_msgSend_uncached + 68 25  com.apple.Foundation            0x00007fff390084a9 -[NSBundle loadAndReturnError:] + 1514 26  com.apple.Flexo                 0x000000010f0a3652 +[FFPluginDirectoryScanner _scanDirectory:withExtension:scanned:delegate:didLoadSelector:] + 930 27  com.apple.Flexo                 0x000000010f0a3b2b +[FFPluginDirectoryScanner scanForPluginsInDirectory:withExtension:delegate:didLoadSelector:] + 1067 28  com.apple.Flexo                 0x000000010edfad2a +[FFEffect(RuntimeBundleLoading) initEffectRegistry] + 218 29  com.apple.Flexo                 0x000000010ee2522f FFInitializePart2 + 111 30  com.apple.Flexo                 0x000000010edc73b6 +[Flexo finishInit] + 22 31  com.apple.iMovieApp             0x000000010e96dbb9 main + 1033 32  libdyld.dylib                   0x00007fff63e67ed9 start + 1 

Full log here

Work Server Crashes

So, the server at worked crashed over the last weekend and people said a lot of the stuff was missing on the server. I really never thought nothing of it until I noticed a pattern between separate files.

In one folder on the server there are a number of PDF files documenting employee new hires, suspension, etc. The PDF files for October through December in 2018 are missing. These same files are almost all completely missing for 2019 except for the month of May. I did not find anything weird about this until I looked in an excel spreadsheet file in a different folder (on the same server) that documents incidents. The excel file for 2018 had October through December missing as well. I went through all the separate folders and seemed to find the same pattern.

If they are claiming that it is a crash how could it wipe out PDF files in a certain folder for 2018 between October through December yet at the same time October through December is deleted on an incident log for the same dates which are logged in rows on the spreadsheet. This really sounds weird and purposeful, not just your regular crash. Does anyone know anything similar happening like this?

Anydesk crashes after another user accepts remote connection

I have installed anydesk application from this url. However, when I tried to remote to my friend computer, my anydesk was closed immediately.

So to track this issue, I tried to start it with sudo anydesk, in terminal it show message:

(anydesk:21940): Gtk-CRITICAL **: 17:06:01.099: IA__gtk_widget_set_tooltip_markup: assertion 'GTK_IS_WIDGET (widget)' failed  (anydesk:21940): Gtk-CRITICAL **: 17:06:01.102: IA__gtk_widget_set_tooltip_markup: assertion 'GTK_IS_WIDGET (widget)' failed  (anydesk:21940): Gtk-CRITICAL **: 17:06:01.106: IA__gtk_signal_connect_full: assertion 'GTK_IS_OBJECT (object)' failed 

When I remote to my friend computer, and he accepted connection, in terminal show this message:

(anydesk:21940): Gtk-CRITICAL **: 17:06:01.099: IA__gtk_widget_set_tooltip_markup: assertion 'GTK_IS_WIDGET (widget)' failed  (anydesk:21940): Gtk-CRITICAL **: 17:06:01.102: IA__gtk_widget_set_tooltip_markup: assertion 'GTK_IS_WIDGET (widget)' failed  (anydesk:21940): Gtk-CRITICAL **: 17:06:01.106: IA__gtk_signal_connect_full: assertion 'GTK_IS_OBJECT (object)' failed terminate called after throwing an instance of 'base::invalid_argument_exception_t' 

And my anydesk was closed. I have no clue what cause this error, I tried to re-install it several times already, but still the same.