From 837fbdbb892dd8212509ef0af1b33ed0198c96d2 Mon Sep 17 00:00:00 2001
From: Jay Phelps <hello@jayphelps.com>
Date: Thu, 5 Jan 2017 12:14:36 -0800
Subject: [PATCH] More descriptive error message for env.CI = true warnings
 causing failures

Related: #944
---
 packages/react-scripts/scripts/build.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/react-scripts/scripts/build.js b/packages/react-scripts/scripts/build.js
index 42be50d43a8..1e1b6217043 100644
--- a/packages/react-scripts/scripts/build.js
+++ b/packages/react-scripts/scripts/build.js
@@ -144,7 +144,7 @@ function build(previousSizeMap) {
     }
 
     if (process.env.CI && stats.compilation.warnings.length) {
-     printErrors('Failed to compile.', stats.compilation.warnings);
+     printErrors('Failed to compile. When process.env.CI = true, warnings are treated as failures. Most CI servers set this automatically.', stats.compilation.warnings);
      process.exit(1);
    }