From a35f665201a79b8975635b1ff0d60473bf08b1a6 Mon Sep 17 00:00:00 2001
From: Jaime van Kessel <nallath@gmail.com>
Date: Tue, 19 Dec 2017 10:45:38 +0100
Subject: [PATCH] Fixed crash if the firmware was in the list, but not found.

CL-541
---
 plugins/USBPrinting/USBPrinterOutputDeviceManager.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/plugins/USBPrinting/USBPrinterOutputDeviceManager.py b/plugins/USBPrinting/USBPrinterOutputDeviceManager.py
index e13d8cef39..c97d8c0160 100644
--- a/plugins/USBPrinting/USBPrinterOutputDeviceManager.py
+++ b/plugins/USBPrinting/USBPrinterOutputDeviceManager.py
@@ -135,7 +135,11 @@ class USBPrinterOutputDeviceManager(QObject, OutputDevicePlugin, Extension):
             Logger.log("w", "There is no firmware for machine %s.", machine_id)
 
         if hex_file:
-            return Resources.getPath(CuraApplication.ResourceTypes.Firmware, hex_file.format(baudrate=baudrate))
+            try:
+                return Resources.getPath(CuraApplication.ResourceTypes.Firmware, hex_file.format(baudrate=baudrate))
+            except FileNotFoundError:
+                Logger.log("w", "Could not find any firmware for machine %s.", machine_id)
+                return ""
         else:
             Logger.log("w", "Could not find any firmware for machine %s.", machine_id)
             return ""