Error when building with haul: ref to pathToRegexp.compile (#4658)

Error in source code that cause problem on react native using haul https://puu.sh/AT1uZ/158623d5a4.png

CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Error when building with haul: ref to pathToRegexp.compile(#4658).
 
 ## [2.9.1] - [2018-07-24](https://github.com/react-navigation/react-navigation/releases/tag/2.9.1)
 ### Fixed

src/routers/pathUtils.js

@@ -1,4 +1,4 @@
-import pathToRegexp from 'path-to-regexp';
+import pathToRegexp, { compile } from 'path-to-regexp';
 import NavigationActions from '../NavigationActions';
 import invariant from '../utils/invariant';
 
@@ -106,8 +106,7 @@ export const createPathParser = (
       extendedPathRe,
       extendedPathReKeys,
       isWildcard,
-      toPath:
-        pathPattern === null ? () => '' : pathToRegexp.compile(pathPattern),
+      toPath: pathPattern === null ? () => '' : compile(pathPattern),
     };
   });