Studio Pro error: Object reference not set to an instance of an object
8
Hey there, i keep getting these and similair errors when using basic functionalities in my modeler (on various projects), for example 'find usage' of an element, the adding of some new elements in a page/snippet (adding a new row to a table, for example), and copy pasting certain elements. This happens in both modeler 8.17.0 and 8.17.1 Mendix.Modeler.Utility.Progress.ProgressException ---> System.NullReferenceException: Object reference not set to an instance of an object. at Mendix.Modeler.Common.Usage.<>c__DisplayClass6_0.<.ctor>b__0() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Common\Usages\Usage.cs:line 42 at System.Lazy`1.CreateValue() at System.Lazy`1.LazyInitValue() at Mendix.Modeler.Common.UsagesUtil.<>c__DisplayClass0_0.<FindUsagesOf>g__Predicate|0(Usage usage) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Common\Usages\UsagesUtil.cs:line 13 at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext() at System.Linq.Enumerable.<DistinctIterator>d__64`1.MoveNext() at Mendix.Modeler.Common.UsageFinder.FindUsagesProvider.<GetFindResults>g__AddToFindResultSet|6_0(IEnumerable`1 references, <>c__DisplayClass6_0& ) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Common\Find\UsageFinder.cs:line 67 at Mendix.Modeler.Common.UsageFinder.FindUsagesProvider.GetFindResults() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Common\Find\UsageFinder.cs:line 80 at Mendix.Modeler.UIFramework.Progress.ProgressUtil.<>c__DisplayClass2_0`1.<Do>b__0(IProgressInfo info) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProgressUtil.cs:line 50 at Mendix.Modeler.UIFramework.Progress.ProcessRunner.RunStep(Step step) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 98 at Mendix.Modeler.UIFramework.Progress.ProcessRunner.OnDoWork(Object sender, DoWorkEventArgs e) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 71 at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument) --- End of inner exception stack trace --- at Mendix.Modeler.UIFramework.Progress.ProcessRunner.Run() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 50 at Mendix.Modeler.UIFramework.Progress.ProgressUtil.Do[T](String message, Func`1 action) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProgressUtil.cs:line 53 at Mendix.Modeler.Common.FindResultsControl.PerformSearch() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core.View\Common\Find\FindResultsControl.cs:line 108 at Mendix.Modeler.Common.FindResultsControl.ShowResults(IFindResultsProvider provider) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core.View\Common\Find\FindResultsControl.cs:line 86 at Eto.Forms.Command.OnExecuted(EventArgs e) at Eto.Forms.Command.System.Windows.Input.ICommand.Execute(Object parameter) at Eto.Forms.MenuItem.OnClick(EventArgs e) at Eto.Forms.MenuItem.Callback.OnClick(MenuItem widget, EventArgs e) at Eto.Wpf.Forms.Menu.MenuItemHandler`3.OnClick() at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised) at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args) at System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) Also, when trying to submit this error as feedback, I also receive an error: Mendix.Modeler.Utility.Progress.ProgressException ---> System.ApplicationException: Malformed response: Unknown api version: null at Mendix.Modeler.Main.Feedback.DoSendPostRequest() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Main\Feedback.cs:line 83 at Mendix.Modeler.UIFramework.Progress.ProcessRunner.RunStep(Step step) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 98 at Mendix.Modeler.UIFramework.Progress.ProcessRunner.OnDoWork(Object sender, DoWorkEventArgs e) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 71 at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e) at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument) --- End of inner exception stack trace --- at Mendix.Modeler.UIFramework.Progress.ProcessRunner.Run() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 50 at Mendix.Modeler.Main.Feedback.Send() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Main\Feedback.cs:line 46 I have tried rebooting, reinstalling the modeler etc, but the errors keep appearing. Any idea what might be causing this problem?
asked
Nils de Vries
8 answers
2
We are experiencing the same problem in Studio Pro 9.0.4 in our project. I've submitted a support ticket for the issue.
Mendix.Modeler.Utility.Progress.ProgressException ---> System.NullReferenceException: Object reference not set to an instance of an object.
at Mendix.Modeler.Common.Usage.<>c__DisplayClass6_0.<.ctor>b__0() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Common\Usages\Usage.cs:line 42
at System.Lazy`1.CreateValue()
at System.Lazy`1.LazyInitValue()
at Mendix.Modeler.Common.UsagesUtil.<>c__DisplayClass0_0.<FindUsagesOf>g__Predicate|0(Usage usage) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Common\Usages\UsagesUtil.cs:line 13
at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
at System.Linq.Enumerable.<DistinctIterator>d__64`1.MoveNext()
answered
Luuk de Bakker
2
Hey there, I received this update on my support ticket
"This is to inform you that the issue has been fixed and the fix is released in Mendix version 8.18.6 and 9.10. Please check and let us know if you face any issues or if you have any questions”
I am not in the position to upgrade at the moment, but maybe this information can be useful to some of you!
answered
Nils de Vries
2
Hi guys, I have the same issue in 9.10 version.
Seems it`s not fixed yet
answered
Vsevolod Kosminskyi
1
Same problem here with 8.17.0. Sometimes this error occur when I copy/paste elements around on the page editor in Studio Pro. Usually ends up in closing and opening Studio Pro, but sometimes I won't get the chance to click X on the popup and then X on Studio Pro because the errors pops up again in a split second. Grrr...
answered
Sjors Schultz
1
Hey guys, a message from Support regarding my Ticket:
“Currently, there is no relevant update on this issue, it is still in progress. I have also asked the R&D team to share an update, once they share more information I will update you.”
I also linked this forum post to my ticket.
answered
Nils de Vries
1
I had the same error today and found a solution for my specific case. I copy-pasted a list view to another page and the listview did a search by xpath containing '[%CurrentObject%]']
The new page however did not have a dataview. The Modeler does not detect this error and on startup you get:
System.NullReferenceException: Object reference not set to an instance of an object.
answered
Bart Tolen
1
and so far is there any solution to resolve this issue ?
answered
Nithish Ravichandran
0
We are also experiencing the same error message in 9.24.14. I am curious whether a fix for this will be released soon.