Hi this is my first time using gulp, and I'm trying to use typescript/gulp/express to form a RESTful web service.

I found a skeleton project for this but I get an error when I try to build it.

Here's a link to the project:
<https://github.com/idanov/express-ts-rest>

```
Kevins-Mac-Pro:express-ts-rest kevincmanning$ gulp buildAll
{ file: undefined,
  start: undefined,
  length: undefined,
  messageText: 'Failed to parse file \'src/tsconfig.json\': text.charCodeAt is not a function.',
  category: 1,
  code: 5014 }
{ file: undefined,
  start: undefined,
  length: undefined,
  messageText: 'Failed to parse file \'tests/tsconfig.json\': text.charCodeAt is not a function.',
  category: 1,
  code: 5014 }
[00:59:23] Using gulpfile ~/Projects/express-ts-rest/gulpfile.js
[00:59:23] Starting 'build'...
[00:59:23] 'build' errored after 10 ms
[00:59:23] TypeError: Cannot read property 'on' of null
    at DestroyableTransform.Readable.pipe (/Users/kevincmanning/Projects/express-ts-rest/node_modules/vinyl-fs/node_modules/readable-stream/lib/_stream_readable.js:516:7)
    at Gulp.<anonymous> (/Users/kevincmanning/Projects/express-ts-rest/gulpfile.js:35:10)
    at module.exports (/Users/kevincmanning/Projects/express-ts-rest/node_modules/orchestrator/lib/runTask.js:34:7)
    at Gulp.Orchestrator._runTask (/Users/kevincmanning/Projects/express-ts-rest/node_modules/orchestrator/index.js:273:3)
    at Gulp.Orchestrator._runStep (/Users/kevincmanning/Projects/express-ts-rest/node_modules/orchestrator/index.js:214:10)
    at Gulp.Orchestrator.start (/Users/kevincmanning/Projects/express-ts-rest/node_modules/orchestrator/index.js:134:8)
    at /usr/local/lib/node_modules/gulp-cli/lib/versioned/^3.7.0/index.js:46:20
    at nextTickCallbackWith0Args (node.js:415:9)
    at process._tickCallback (node.js:344:13)
    at Function.Module.runMain (module.js:443:11)

```