quick fix

1 files changed, 6 insertions, 2 deletions

diff --git a/rotord/graph.cpp b/rotord/graph.cpp
index 655badb..7644dde 100644
--- a/rotord/graph.cpp
+++ b/rotord/graph.cpp
@@ -27,14 +27,18 @@ bool Graph::signal_render(string &signal_xml,const float framerate) {
 		Signal_output *signal_output=dynamic_cast<Signal_output*>(find_node("signal_output"));
 		return signal_output->render(duration,framerate,signal_xml);
 	}
-	else return false;
+	cerr<<"Rotor: signal output node not found"<<endl;
+
+	 return false;
 }
 bool Graph::video_render(const string &output_filename,const string &audio_filename,const float framerate,float& progress) {
 	if (find_node("video_output")) {
 		Video_output *video_output=dynamic_cast<Video_output*>(find_node("video_output"));
 		return video_output->render(duration,framerate,output_filename,audio_filename,progress);
 	}
-	else return false;
+	
+	cerr<<"Rotor: video output node not found"<<endl;
+	return false;
 }
 bool Graph::load(string &filename){
 	loaded=false;