From 8cbd027a87e5a696664279778a879f575b2222f8 Mon Sep 17 00:00:00 2001
From: Ben Roth <spongebucket@gmail.com>
Date: Thu, 13 Apr 2017 11:28:24 -0700
Subject: [PATCH] Protect against fatal YellowBox error when stack frame has no
 file

---
 Libraries/ReactNative/YellowBox.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Libraries/ReactNative/YellowBox.js b/Libraries/ReactNative/YellowBox.js
index ec30f1a84bfacd..458441f805f680 100644
--- a/Libraries/ReactNative/YellowBox.js
+++ b/Libraries/ReactNative/YellowBox.js
@@ -191,8 +191,13 @@ const StackRow = ({frame}: StackRowProps) => {
   const Text = require('Text');
   const TouchableHighlight = require('TouchableHighlight');
   const {file, lineNumber} = frame;
-  const fileParts = file.split('/');
-  const fileName = fileParts[fileParts.length - 1];
+  let fileName;
+  if (file) {
+    const fileParts = file.split('/');
+    fileName = fileParts[fileParts.length - 1];
+  } else {
+    fileName = '<unknown file>';
+  }
 
   return (
     <TouchableHighlight