From 51b15cb6ff9206567c3a609a419b9e46eb2b71d4 Mon Sep 17 00:00:00 2001
From: zepumph <michael.kauzmann@colorado.edu>
Date: Thu, 3 Oct 2019 15:04:41 -0800
Subject: [PATCH] only log errors,
 https://github.com/phetsims/chipper/issues/801

---
 js/grunt/phet-io/generatePhetioAPIFiles.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/grunt/phet-io/generatePhetioAPIFiles.js b/js/grunt/phet-io/generatePhetioAPIFiles.js
index 83abd1b07..28821547c 100644
--- a/js/grunt/phet-io/generatePhetioAPIFiles.js
+++ b/js/grunt/phet-io/generatePhetioAPIFiles.js
@@ -56,8 +56,8 @@ module.exports = async ( repo, localTestingURL ) => {
         receivedTypes = true;
         await resolved();
       }
-      else {
-        console.log( msg.text() );
+      else if ( msg.type() === 'error' ) {
+        console.error( msg.text() );
       }
     } );