1 files changed, 12 insertions, 3 deletions
diff --git a/src/extension/implementation/script.cpp b/src/extension/implementation/script.cpp
index eb98711bc..0f0a79bfb 100644
--- a/src/extension/implementation/script.cpp
+++ b/src/extension/implementation/script.cpp
@@ -732,9 +732,18 @@ void Script::effect(Inkscape::Extension::Effect *module,
 
     SPDocument * mydoc = NULL;
     if (data_read > 10) {
-        mydoc = Inkscape::Extension::open(
-              Inkscape::Extension::db.get(SP_MODULE_KEY_INPUT_SVG),
-              tempfilename_out.c_str());
+        try {
+            mydoc = Inkscape::Extension::open(
+                  Inkscape::Extension::db.get(SP_MODULE_KEY_INPUT_SVG),
+                  tempfilename_out.c_str());
+        } catch (const Inkscape::Extension::Input::open_failed &e) {
+            g_warning("Extension returned output that could not be parsed: %s", e.what());
+            Gtk::MessageDialog warning(
+                    _("The output from the extension could not be parsed."),
+                    false, Gtk::MESSAGE_WARNING, Gtk::BUTTONS_OK, true);
+            warning.set_transient_for( *(INKSCAPE.active_desktop()->getToplevel()) );
+            warning.run();
+        }
     } // data_read
 
     pump_events();