From af77eca9df45ca65529b885cce062caa1d754eb0 Mon Sep 17 00:00:00 2001
From: Enrico Turri <enricoturri@seznam.cz>
Date: Wed, 11 Sep 2019 10:02:27 +0200
Subject: [PATCH] Follow-up of 44c3493f7dbfe0538d27a5ce3501c0455e4aa1c1 ->
 error message logged only for multi-extruder printers

---
 src/libslic3r/GCode/Analyzer.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/libslic3r/GCode/Analyzer.cpp b/src/libslic3r/GCode/Analyzer.cpp
index 5250c90b0b..20f0483b0e 100644
--- a/src/libslic3r/GCode/Analyzer.cpp
+++ b/src/libslic3r/GCode/Analyzer.cpp
@@ -529,7 +529,10 @@ void GCodeAnalyzer::_processT(const std::string& cmd)
         if (_get_extruder_id() != id)
         {
             if (id >= m_extruders_count)
-                BOOST_LOG_TRIVIAL(error) << "GCodeAnalyzer encountered an invalid toolchange, maybe from a custom gcode.";
+            {
+                if (m_extruders_count > 1)
+                    BOOST_LOG_TRIVIAL(error) << "GCodeAnalyzer encountered an invalid toolchange, maybe from a custom gcode.";
+            }
             else
                 _set_extruder_id(id);