From 76324b80063152ce67c164b6f048682e71771bb6 Mon Sep 17 00:00:00 2001
From: Craig Rodrigues <rodrigc@FreeBSD.org>
Date: Thu, 10 May 2018 12:14:33 -0700
Subject: [PATCH] fix(cli): add more verbose warning if '_debugger' module
 cannot be found. (#4800)

---
 lib/debugger/debuggerCommons.js | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/debugger/debuggerCommons.js b/lib/debugger/debuggerCommons.js
index 6da09d583..f7b3b7833 100644
--- a/lib/debugger/debuggerCommons.js
+++ b/lib/debugger/debuggerCommons.js
@@ -1,4 +1,18 @@
-var baseDebugger = require('_debugger');
+var baseDebugger;
+try {
+  baseDebugger = require('_debugger');
+} catch (e) {
+  if (e.code == 'MODULE_NOT_FOUND') {
+    console.log('***********************************************************');
+    console.log('* WARNING: _debugger module not available on Node.js 8    *');
+    console.log('* and higher.                                             *');
+    console.log('*                                                         *');
+    console.log('* Use \'debugger\' keyword instead:                       *');
+    console.log('* https://goo.gl/MvWqFh                                   *');
+    console.log('***********************************************************');
+  }
+  throw e;
+}
 var path = require('path');
 
 /**