Fix.

node_modules/get-value/index.js

@@ -0,0 +1,50 @@
+/*!
+ * get-value <https://github.com/jonschlinkert/get-value>
+ *
+ * Copyright (c) 2014-2015, Jon Schlinkert.
+ * Licensed under the MIT License.
+ */
+
+module.exports = function(obj, prop, a, b, c) {
+  if (!isObject(obj) || !prop) {
+    return obj;
+  }
+
+  prop = toString(prop);
+
+  // allowing for multiple properties to be passed as
+  // a string or array, but much faster (3-4x) than doing
+  // `[].slice.call(arguments)`
+  if (a) prop += '.' + toString(a);
+  if (b) prop += '.' + toString(b);
+  if (c) prop += '.' + toString(c);
+
+  if (prop in obj) {
+    return obj[prop];
+  }
+
+  var segs = prop.split('.');
+  var len = segs.length;
+  var i = -1;
+
+  while (obj && (++i < len)) {
+    var key = segs[i];
+    while (key[key.length - 1] === '\\') {
+      key = key.slice(0, -1) + '.' + segs[++i];
+    }
+    obj = obj[key];
+  }
+  return obj;
+};
+
+function isObject(val) {
+  return val !== null && (typeof val === 'object' || typeof val === 'function');
+}
+
+function toString(val) {
+  if (!val) return '';
+  if (Array.isArray(val)) {
+    return val.join('.');
+  }
+  return val;
+}