From 9e0e18fd2e42e469e81b3b9f4aa3bd717ca1b317 Mon Sep 17 00:00:00 2001
From: Jay Phelps <hello@jayphelps.com>
Date: Thu, 5 Jan 2017 12:14:36 -0800
Subject: [PATCH] UX: Explain why build is failing (#1352)

---
 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 42be50d43..1e1b62170 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);
    }
 
-- 
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