From f5015d1cd695afc2e69114e10e34d05aa06ab554 Mon Sep 17 00:00:00 2001
From: Lars Brubaker <larsbrubaker@gmail.com>
Date: Thu, 2 Jul 2020 13:48:49 -0700
Subject: [PATCH] Make sure we don't crash if the slice is canceled and there
 is an error disposing it.

issue: MatterHackers/MCCentral#5929
InvalidOperationException: No process is associated with this object.
---
 .../SlicerConfiguration/EngineMappingsMatterSlice.cs | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/MatterControlLib/SlicerConfiguration/EngineMappingsMatterSlice.cs b/MatterControlLib/SlicerConfiguration/EngineMappingsMatterSlice.cs
index d7a0bdfc1..00ef6aed8 100644
--- a/MatterControlLib/SlicerConfiguration/EngineMappingsMatterSlice.cs
+++ b/MatterControlLib/SlicerConfiguration/EngineMappingsMatterSlice.cs
@@ -452,8 +452,16 @@ namespace MatterHackers.MatterControl.SlicerConfiguration
 							{
 								if (cancellationToken.IsCancellationRequested)
 								{
-									slicerProcess?.Kill();
-									slicerProcess?.Dispose();
+									// If for some reason we cannot kill the slicing process do not exit
+									try
+									{
+										slicerProcess?.Kill();
+										slicerProcess?.Dispose();
+									}
+									catch
+									{
+									}
+
 									forcedExit = true;
 								}