IOS Crashes

[mohamed]

Hello,

I stucked for 2 days trying to find a solustion with no hope,

i just got that error when i try to build my xamarin forms app for ios iphone 7 device

Severity Code Description Project File Line Suppression State

Error Can't resolve the reference 'System.Drawing.RectangleF System.Drawing.RectangleF::Empty', referenced from the method 'UIKit.UITextField Xamarin.Forms.Platform.iOS.EntryRenderer::CreateNativeControl()' in 'System.Drawing.Common, Version=4.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. MLKApp.iOS

please i need help i dont know if this error from control or what ,, everything was working as expected before and that happend suddenly 

[Rachel A]

Hi Mohamed, 

 

Greetings from Syncfusion. 

 

As mentioned in the forum, can you give a try on the below suggestion. 

 

https://github.com/xamarin/Xamarin.Forms/issues/8765#issuecomment-562454681 

 

Also, from the given error details we suspect you are using System.drawing.rectangleF . As mentioned in the below forum link, can you use CoreGraphics.CGRect which is used in Unified API for iOS platform. 

 

https://forums.xamarin.com/discussion/30505/monotouch-giving-error 

 

Thanks, 

Rachel. 

[mohamed]

Hello again,

I figure out that after upgrading to Xamarin.Forms Latest Version 4.3.0.991221 the error came out and after downgrading it works well i dont know if it a bug or not ,

 but i need to use Xamarin.Forms Latest Version 4.3.0.991221 to start using syncfusion:SfAccordion control, is there is anyway to solve that ?

[Rachel A]

Hi Mohamed, 

 

We ask you to confirm whether you have tried the solution that we have already provided. So, further investigation will be helpful. 

 

Thanks, 

Rachel. 

[mohamed]

Hello,

I tried to flow the links you sent before but nothing worked for me but the latest version of the Xamarin.forms 4.3.0.991221, and i am not using System.Drawing.RectangleF in my code so i couldnt change it to CoreGraphics.CGRect , but the workaround i did was i knew which file making the problem and it was Xamarin.Forms.Platform.iOS.dll

Location : C:\Users\UserName\.nuget\packages\xamarin.forms\4.3.0.991221\lib\Xamarin.iOS10\Xamarin.Forms.Platform.iOS.dll and i changed this file with the older version 4.3.0.991211 and it continued without getting the error but still cannot use SfAccordion it shows up in the page and filled with list data but not expandable.

I hope my explaination was clear, thanks.

[Gnana Priya Namasivayam]

Hi  Mohammed, 

 

We would like to inform that we could able to reproduce the reported issue in 4.3.0.991221 and its is framework issue which now works fine in latest Xamarin Forms version 4.4.0.991265. We have attached the tested sample for your reference, please find the sample from below. 

 

Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/ACCORD~1-953455251  

 

Kindly check and update us whether reported issue have been resolved in your application. 

 

Regards, 

Gnana Priya N 

[mohamed]

Hello,

Thanks alot i upgraded to the Xamarin.forms 4.4.0.991265 Latest version as you suggested and everything worked as expected ,thanks.

[Gnana Priya Namasivayam]

Hi Mohammed, 

 

Thanks for the update. 

 

We are glad that reported issue has been resolved. Please let us know if need any further assistance from our side. 

  

Regards, 

Gnana Priya N