LaunchEmail crashes in preview

Bug Reports
1

v0.27.0 (Build 7900)

Clicking on LaunchEmail in preview crashes with the following message.

System.NullReferenceException: Object reference not set to an instance of an object
  at Uno.Text.StringBuilder.Append (System.String str) <0x191e8440 + 0x0000c> in <filename unknown>:0 
  at Fuse.Launcher.LaunchEmail (System.String to, System.String carbonCopy, System.String blindCarbonCopy, System.String subject, System.String message) <0x1d7f6570 + 0x00047> in <filename unknown>:0 
  at Fuse.Triggers.Actions.LaunchEmail.Perform (Fuse.Node target) <0x1d7f6510 + 0x00047> in <filename unknown>:0 
  at Fuse.Triggers.Actions.TriggerAction.PerformFromNode (Fuse.Node target) <0x1951b208 + 0x00030> in <filename unknown>:0 
  at Fuse.Triggers.Trigger.SetPlayDirection (Int32 next) <0x194e4668 + 0x000d3> in <filename unknown>:0 
  at Fuse.Triggers.Trigger.PlayEnd (Boolean on, System.Action done) <0x194e35e0 + 0x000b7> in <filename unknown>:0 
  at Fuse.Triggers.Trigger.DirectActivate (System.Action done) <0x1951b1b0 + 0x00023> in <filename unknown>:0 
  at Fuse.Triggers.Trigger.Pulse () <0x1951b120 + 0x00083> in <filename unknown>:0 
  at Fuse.Gestures.Clicked.OnClicked (Fuse.Input.PointerEventArgs args, Int32 clickCount) <0x1d7e3190 + 0x00037> in <filename unknown>:0 
  at Fuse.Gestures.Clicker.OnPointerReleased (System.Object sender, Fuse.Input.PointerReleasedArgs args) <0x1d7e24b0 + 0x001d3> in <filename unknown>:0 
  at Fuse.Input.PointerReleased.Invoke (Fuse.Input.PointerReleasedHandler handler, System.Object sender, Fuse.Input.PointerReleasedArgs args) <0x1d7e2488 + 0x0001c> in <filename unknown>:0 
  at Fuse.VisualEvent`2[THandler,TArgs].InvokeInternal (Fuse.THandler handler, System.Object sender, Fuse.TArgs args) <0x1d7ddbb0 + 0x0002c> in <filename unknown>:0 
Object reference not set to an instance of an object

The UX code block looks like this

      <Panel Height="48" Width="48" ux:Name="EmailButton">
    	<MDI FontSize="48" TextColor="LightColor">&#xf15f;</MDI>
      <Clicked>
        <LaunchEmail To="{EmailAddress}" Subject="Reaching out" CarbonCopy="" BlindCarbonCopy="" Message="Hello, [QUESTION/COMMENT GOES HERE], Thanks!" />
      </Clicked>
      </Panel>
2

Update, the iOS app crashes too.

3

Hey Ish, and thanks for your report. I’ve created an internal issue to track this problem and we’ll get back to you once we’ve looked into this.

Cheers!

4

Hey Ish,

This happens to me only when EmailAddress is an empty Observable. Can you verify that your Observable actually has a value?

If there is no To address the crash makes sense, though the error message is really bad. I’ll improve the error message for future releases.

Thanks again!