From 489ae66e964670c2f761e6cac39434ce7ae4cf35 Mon Sep 17 00:00:00 2001
From: Elvira Khabirova <lineprinter0@gmail.com>
Date: Thu, 17 Nov 2016 08:24:02 +0300
Subject: [PATCH] Fix crash when trying to import not .dxf or .dwg files

---
 src/solvespace.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/solvespace.cpp b/src/solvespace.cpp
index 6a0b835..f7b8a91 100644
--- a/src/solvespace.cpp
+++ b/src/solvespace.cpp
@@ -544,7 +544,10 @@ void SolveSpaceUI::MenuFile(Command id) {
                 ImportDxf(importFile);
             } else if(Extension(importFile) == "dwg") {
                 ImportDwg(importFile);
-            } else ssassert(false, "Unexpected extension of file to import");
+            } else {
+                Error("Can't identify file type from file extension of "
+                      "filename '%s'; try .dxf or .dwg.", importFile.c_str());
+            }
 
             SS.GenerateAll(SolveSpaceUI::Generate::UNTIL_ACTIVE);
             SS.ScheduleShowTW();