ACS Node to Arrow Migration - Console Error: Uncaught Exception write after end

1. Application type: web/arrow
2. Titanium SDK: 4.2.0, 7/24/15, 67c708a
3. Platform & version: Arrow 0.4.0
4. Host Operating System: Windows 7
5. Titanium Studio: 4.1.1.201507141126
6. Test case: http://127.0.0.1:8080/api/testuser/count

I'm working on migrating my Node.ACS app to Arrow following these instructions. I've created a new arrow app using appc new -t arrow -n ArrowProject. I've only migrated my package.json code so far. When I call tthe URL in the Test Case, it produces the correct result, but I'm getting this error in the console:

Error: write after end
    at writeAfterEnd (_stream_writable.js:133:12)
    at WriteStream.Writable.write (_stream_writable.js:181:5)
    at Logger._emit (u:\.appcelerator\install\4.0.1\package\node_modules\appc-logger\node_modules\bunyan\lib\bunyan.js:811:22)
    at Logger.bunyan._emit (u:\.appcelerator\install\4.0.1\package\node_modules\appc-logger\lib\logger.js:243:21)
    at Logger.<anonymous (u:\.appcelerator\install\4.0.1\package\node_modules\appc-logger\node_modules\bunyan\lib\bunyan.js:894:24)
    at Logger.info (u:\.appcelerator\install\4.0.1\package\node_modules\appc-logger\lib\index.js:25:13)
    at Response.failure (u:\.appcelerator\install\4.0.1\package\node_modules\arrow\lib\response.js:272:23)
    at Response.notfound (u:\.appcelerator\install\4.0.1\package\node_modules\arrow\lib\response.js:289:15)
    at tasks (u:\.appcelerator\install\4.0.1\package\node_modules\arrow\lib\response.js:325:64)
    at u:\.appcelerator\install\4.0.1\package\node_modules\async\lib\async.js:607:21
    at u:\.appcelerator\install\4.0.1\package\node_modules\async\lib\async.js:246:17
    at iterate (u:\.appcelerator\install\4.0.1\package\node_modules\async\lib\async.js:146:13)
    at async.eachSeries (u:\.appcelerator\install\4.0.1\package\node_modules\async\lib\async.js:162:9)
    at _asyncMap (u:\.appcelerator\install\4.0.1\package\node_modules\async\lib\async.js:245:13)
    at Object.mapSeries (u:\.appcelerator\install\4.0.1\package\node_modules\async\lib\async.js:228:23)
    at Object.async.series (u:\.appcelerator\install\4.0.1\package\node_modules\async\lib\async.js:605:19)
Uncaught Exception write after end

{
    "name": "myapp-arrow",
    "description": "The Arrow implementation of the Node.ACS application.",
    "version": "1.0.0",
    "author": "",
    "license": "",
    "framework": "none",
    "keywords": [
        "appcelerator",
        "arrow"
    ],
    "private": true,
    "dependencies": {
        "async": "^0.9.0",
        "lodash": "^2.4.1",
        "pkginfo": "^0.3.0",
        "promised-io": "~0.3.5",
    "request": "~2.53.0",
    "MD5": "~1.2.1",
    "morgan": "~1.5.3"
    },
    "devDependencies": {
        "arrow": "*",
        "grunt": "^0.4.5",
        "grunt-contrib-clean": "^0.6.0",
        "grunt-contrib-jshint": "^0.10.0",
        "grunt-kahvesi": "^0.1.0",
        "grunt-mocha-test": "^0.11.0",
        "mocha": "^1.21.4",
        "should": "^4.0.4"
    },
    "main": "app.js",
    "fromNode": "-------------- below here from Node -------------------",
    "preferGlobal": false,
    "bodyParser": true,
    "service": {
        "env_id": "",
        "org_id": "99999999"
    },
    "repository": {
        "type": "git",
        "url": ""
    },
    "alsoFromNode": {
        "dependencies": {
            "promised-io": "~0.3.5",
            "request": "~2.53.0",
            "MD5": "~1.2.1",
            "morgan": "~1.5.3"
        }
    }
}