diff --git a/package-lock.json b/package-lock.json
index 5fee72ac..d7de784d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,6 +14,14 @@
         "commander": "2.19.0",
         "tslint": "5.12.0",
         "tslint-eslint-rules": "5.4.0"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "10.12.15",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.12.15.tgz",
+          "integrity": "sha512-9kROxduaN98QghwwHmxXO2Xz3MaWf+I1sLVAA6KJDF5xix+IyXVhds0MAfdNwtcpSrzhaTsNB0/jnL86fgUhqA==",
+          "dev": true
+        }
       }
     },
     "@openstapps/logger": {
@@ -59,7 +67,6 @@
       "version": "5.0.4",
       "resolved": "https://registry.npmjs.org/@types/fs-extra/-/fs-extra-5.0.4.tgz",
       "integrity": "sha512-DsknoBvD8s+RFfSGjmERJ7ZOP1HI0UZRA3FSI+Zakhrc/Gy26YQsLI+m5V5DHxroHRJqCDLKJp7Hixn8zyaF7g==",
-      "dev": true,
       "requires": {
         "@types/node": "*"
       }
@@ -75,16 +82,14 @@
       }
     },
     "@types/handlebars": {
-      "version": "4.0.39",
-      "resolved": "https://registry.npmjs.org/@types/handlebars/-/handlebars-4.0.39.tgz",
-      "integrity": "sha512-vjaS7Q0dVqFp85QhyPSZqDKnTTCemcSHNHFvDdalO1s0Ifz5KuE64jQD5xoUkfdWwF4WpqdJEl7LsWH8rzhKJA==",
-      "dev": true
+      "version": "4.0.40",
+      "resolved": "https://registry.npmjs.org/@types/handlebars/-/handlebars-4.0.40.tgz",
+      "integrity": "sha512-sGWNtsjNrLOdKha2RV1UeF8+UbQnPSG7qbe5wwbni0mw4h2gHXyPFUMOC+xwGirIiiydM/HSqjDO4rk6NFB18w=="
     },
     "@types/highlight.js": {
       "version": "9.12.3",
       "resolved": "https://registry.npmjs.org/@types/highlight.js/-/highlight.js-9.12.3.tgz",
-      "integrity": "sha512-pGF/zvYOACZ/gLGWdQH8zSwteQS1epp68yRcVLJMgUck/MjEn/FBYmPub9pXT8C1e4a8YZfHo1CKyV8q1vKUnQ==",
-      "dev": true
+      "integrity": "sha512-pGF/zvYOACZ/gLGWdQH8zSwteQS1epp68yRcVLJMgUck/MjEn/FBYmPub9pXT8C1e4a8YZfHo1CKyV8q1vKUnQ=="
     },
     "@types/humanize-string": {
       "version": "1.0.0",
@@ -94,14 +99,12 @@
     "@types/lodash": {
       "version": "4.14.119",
       "resolved": "https://registry.npmjs.org/@types/lodash/-/lodash-4.14.119.tgz",
-      "integrity": "sha512-Z3TNyBL8Vd/M9D9Ms2S3LmFq2sSMzahodD6rCS9V2N44HUMINb75jNkSuwAx7eo2ufqTdfOdtGQpNbieUjPQmw==",
-      "dev": true
+      "integrity": "sha512-Z3TNyBL8Vd/M9D9Ms2S3LmFq2sSMzahodD6rCS9V2N44HUMINb75jNkSuwAx7eo2ufqTdfOdtGQpNbieUjPQmw=="
     },
     "@types/marked": {
       "version": "0.4.2",
       "resolved": "https://registry.npmjs.org/@types/marked/-/marked-0.4.2.tgz",
-      "integrity": "sha512-cDB930/7MbzaGF6U3IwSQp6XBru8xWajF5PV2YZZeV8DyiliTuld11afVztGI9+yJZ29il5E+NpGA6ooV/Cjkg==",
-      "dev": true
+      "integrity": "sha512-cDB930/7MbzaGF6U3IwSQp6XBru8xWajF5PV2YZZeV8DyiliTuld11afVztGI9+yJZ29il5E+NpGA6ooV/Cjkg=="
     },
     "@types/minimatch": {
       "version": "3.0.3",
@@ -119,9 +122,9 @@
       "integrity": "sha512-RTVWV485OOf4+nO2+feurk0chzHkSjkjALiejpHltyuMf/13fGymbbNNFrSKdSSUg1TIwzszXdWsVirxgqYiFA=="
     },
     "@types/node": {
-      "version": "10.12.15",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.12.15.tgz",
-      "integrity": "sha512-9kROxduaN98QghwwHmxXO2Xz3MaWf+I1sLVAA6KJDF5xix+IyXVhds0MAfdNwtcpSrzhaTsNB0/jnL86fgUhqA=="
+      "version": "10.12.18",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.12.18.tgz",
+      "integrity": "sha512-fh+pAqt4xRzPfqA6eh3Z2y6fyZavRIumvjhaCL753+TVkGKGhpPeyrJG2JftD0T9q4GF00KjefsQ+PQNDdWQaQ=="
     },
     "@types/nodemailer": {
       "version": "4.6.5",
@@ -136,7 +139,6 @@
       "version": "0.8.1",
       "resolved": "https://registry.npmjs.org/@types/shelljs/-/shelljs-0.8.1.tgz",
       "integrity": "sha512-1lQw+48BuVgp6c1+z8EMipp18IdnV2dLh6KQGwOm+kJy9nPjEkaqRKmwbDNEYf//EKBvKcwOC6V2cDrNxVoQeQ==",
-      "dev": true,
       "requires": {
         "@types/glob": "*",
         "@types/node": "*"
@@ -772,7 +774,6 @@
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-7.0.1.tgz",
       "integrity": "sha512-YJDaCJZEnBmcbw13fvdAM9AwNOJwOzrE4pqMqBq5nFiEqXUqHwlK4B+3pUw6JNvfSPtX05xFHtYy/1ni01eGCw==",
-      "dev": true,
       "requires": {
         "graceful-fs": "^4.1.2",
         "jsonfile": "^4.0.0",
@@ -1048,8 +1049,7 @@
     "graceful-fs": {
       "version": "4.1.15",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.15.tgz",
-      "integrity": "sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==",
-      "dev": true
+      "integrity": "sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA=="
     },
     "growl": {
       "version": "1.10.5",
@@ -1060,7 +1060,6 @@
       "version": "4.0.12",
       "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.0.12.tgz",
       "integrity": "sha512-RhmTekP+FZL+XNhwS1Wf+bTTZpdLougwt5pcgA1tuz6Jcx0fpH/7z0qd71RKnZHBCxIRBHfBOnio4gViPemNzA==",
-      "dev": true,
       "requires": {
         "async": "^2.5.0",
         "optimist": "^0.6.1",
@@ -1088,10 +1087,9 @@
       "integrity": "sha1-k0EP0hsAlzUVH4howvJx80J+I/0="
     },
     "highlight.js": {
-      "version": "9.13.1",
-      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.13.1.tgz",
-      "integrity": "sha512-Sc28JNQNDzaH6PORtRLMvif9RSn1mYuOoX3omVjnb0+HbpPygU2ALBI0R/wsiqCb4/fcp07Gdo8g+fhtFrQl6A==",
-      "dev": true
+      "version": "9.12.0",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-9.12.0.tgz",
+      "integrity": "sha1-5tnb5Xy+/mB1HwKvM2GVhwyQwB4="
     },
     "hosted-git-info": {
       "version": "2.7.1",
@@ -1134,10 +1132,9 @@
       "dev": true
     },
     "interpret": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/interpret/-/interpret-1.1.0.tgz",
-      "integrity": "sha1-ftGxQQxqDg94z5XTuEQMY/eLhhQ=",
-      "dev": true
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/interpret/-/interpret-1.2.0.tgz",
+      "integrity": "sha512-mT34yGKMNceBQUoVn7iCDKDntA7SC6gycMAWzGx1z/CMCTV7b2AAtXlo3nRyHZ1FelRkQbQjprHSYGwzLtkVbw=="
     },
     "invert-kv": {
       "version": "1.0.0",
@@ -1267,7 +1264,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/jsonfile/-/jsonfile-4.0.0.tgz",
       "integrity": "sha1-h3Gq4HmbZAdrdmQPygWPnBDjPss=",
-      "dev": true,
       "requires": {
         "graceful-fs": "^4.1.6"
       }
@@ -1380,8 +1376,7 @@
     "marked": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/marked/-/marked-0.4.0.tgz",
-      "integrity": "sha512-tMsdNBgOsrUophCAFQl0XPe6Zqk/uy9gnue+jIIKhykO51hxyu6uNx7zBPy0+y/WKYVZZMspV9YeXLNdKk+iYw==",
-      "dev": true
+      "integrity": "sha512-tMsdNBgOsrUophCAFQl0XPe6Zqk/uy9gnue+jIIKhykO51hxyu6uNx7zBPy0+y/WKYVZZMspV9YeXLNdKk+iYw=="
     },
     "mem": {
       "version": "1.1.0",
@@ -1577,7 +1572,6 @@
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
       "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
-      "dev": true,
       "requires": {
         "minimist": "~0.0.1",
         "wordwrap": "~0.0.2"
@@ -1586,8 +1580,7 @@
         "minimist": {
           "version": "0.0.10",
           "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
-          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=",
-          "dev": true
+          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
         }
       }
     },
@@ -1667,8 +1660,7 @@
     "path-parse": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
-      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
-      "dev": true
+      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw=="
     },
     "path-type": {
       "version": "3.0.0",
@@ -1733,8 +1725,7 @@
     "progress": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.3.tgz",
-      "integrity": "sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==",
-      "dev": true
+      "integrity": "sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA=="
     },
     "pseudomap": {
       "version": "1.0.2",
@@ -1806,7 +1797,6 @@
       "version": "0.6.2",
       "resolved": "https://registry.npmjs.org/rechoir/-/rechoir-0.6.2.tgz",
       "integrity": "sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=",
-      "dev": true,
       "requires": {
         "resolve": "^1.1.6"
       }
@@ -1844,18 +1834,17 @@
       "version": "1.9.0",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.9.0.tgz",
       "integrity": "sha512-TZNye00tI67lwYvzxCxHGjwTNlUV70io54/Ed4j6PscB8xVfuBJpRenI/o6dVk0cY0PYTY27AgCoGGxRnYuItQ==",
-      "dev": true,
       "requires": {
         "path-parse": "^1.0.6"
       }
     },
     "rimraf": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.2.tgz",
-      "integrity": "sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==",
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.3.tgz",
+      "integrity": "sha512-mwqeW5XsA2qAejG46gYdENaxXjx9onRNCfn7L0duuP4hCuTIi/QO7PDK07KJfp1d+izWPrzEJDcSqBa0OZQriA==",
       "dev": true,
       "requires": {
-        "glob": "^7.0.5"
+        "glob": "^7.1.3"
       }
     },
     "safe-buffer": {
@@ -1891,7 +1880,6 @@
       "version": "0.8.3",
       "resolved": "https://registry.npmjs.org/shelljs/-/shelljs-0.8.3.tgz",
       "integrity": "sha512-fc0BKlAWiLpwZljmOvAOTE/gXawtCoNrP5oaY7KIaQbbyHeQVg01pSEuEGvGh3HEdBU4baCD7wQBwADmM/7f7A==",
-      "dev": true,
       "requires": {
         "glob": "^7.0.0",
         "interpret": "^1.0.0",
@@ -2091,9 +2079,9 @@
       "dev": true
     },
     "ts-json-schema-generator": {
-      "version": "0.37.1",
-      "resolved": "https://registry.npmjs.org/ts-json-schema-generator/-/ts-json-schema-generator-0.37.1.tgz",
-      "integrity": "sha512-fXTDJ/Saz6gHsJA7o5y6ltlVEQIfc9HOgfSn4lbuAPm+BnfLMJbce8ylQT3yCH8N9zbMqkF3ceOtcN8nxoINMA==",
+      "version": "0.38.1",
+      "resolved": "https://registry.npmjs.org/ts-json-schema-generator/-/ts-json-schema-generator-0.38.1.tgz",
+      "integrity": "sha512-m0yBRUU35pPBUIavL1fFN7XEgcA1xNqcuIegT5Zm7QF3wsjqXofIMqO/lCVXVGCAHYvaOcRfpsPCS63w3vvAEQ==",
       "requires": {
         "commander": "~2.19.0",
         "glob": "~7.1.3",
@@ -2185,10 +2173,9 @@
       "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g=="
     },
     "typedoc": {
-      "version": "0.13.0",
-      "resolved": "https://registry.npmjs.org/typedoc/-/typedoc-0.13.0.tgz",
-      "integrity": "sha512-jQWtvPcV+0fiLZAXFEe70v5gqjDO6pJYJz4mlTtmGJeW2KRoIU/BEfktma6Uj8Xii7UakuZjbxFewl3UYOkU/w==",
-      "dev": true,
+      "version": "0.14.0",
+      "resolved": "https://registry.npmjs.org/typedoc/-/typedoc-0.14.0.tgz",
+      "integrity": "sha512-9DOYWO6O02YGZfbNOrELtmpQF4Eba/6AfNQNt46iRuIokoEq1Axdz9Ae/XjgdoXsM2ShGlDZsAO36BwRVz/Nmw==",
       "requires": {
         "@types/fs-extra": "^5.0.3",
         "@types/handlebars": "^4.0.38",
@@ -2199,29 +2186,20 @@
         "@types/shelljs": "^0.8.0",
         "fs-extra": "^7.0.0",
         "handlebars": "^4.0.6",
-        "highlight.js": "^9.0.0",
+        "highlight.js": "9.12.0",
         "lodash": "^4.17.10",
         "marked": "^0.4.0",
         "minimatch": "^3.0.0",
         "progress": "^2.0.0",
         "shelljs": "^0.8.2",
         "typedoc-default-themes": "^0.5.0",
-        "typescript": "3.1.x"
-      },
-      "dependencies": {
-        "typescript": {
-          "version": "3.1.6",
-          "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.1.6.tgz",
-          "integrity": "sha512-tDMYfVtvpb96msS1lDX9MEdHrW4yOuZ4Kdc4Him9oU796XldPYF/t2+uKoX0BBa0hXXwDlqYQbXY5Rzjzc5hBA==",
-          "dev": true
-        }
+        "typescript": "3.2.x"
       }
     },
     "typedoc-default-themes": {
       "version": "0.5.0",
       "resolved": "https://registry.npmjs.org/typedoc-default-themes/-/typedoc-default-themes-0.5.0.tgz",
-      "integrity": "sha1-bcJDPnjti+qOiHo6zeLzF4W9Yic=",
-      "dev": true
+      "integrity": "sha1-bcJDPnjti+qOiHo6zeLzF4W9Yic="
     },
     "typescript": {
       "version": "3.2.2",
@@ -2232,7 +2210,6 @@
       "version": "3.4.9",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.9.tgz",
       "integrity": "sha512-8CJsbKOtEbnJsTyv6LE6m6ZKniqMiFWmm9sRbopbkGs3gMPPfd3Fh8iIA4Ykv5MgaTbqHr4BaoGLJLZNhsrW1Q==",
-      "dev": true,
       "optional": true,
       "requires": {
         "commander": "~2.17.1",
@@ -2243,7 +2220,6 @@
           "version": "2.17.1",
           "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
           "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
-          "dev": true,
           "optional": true
         }
       }
@@ -2251,8 +2227,7 @@
     "universalify": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
-      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
-      "dev": true
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="
     },
     "uri-js": {
       "version": "4.2.2",
@@ -2300,8 +2275,7 @@
     "wordwrap": {
       "version": "0.0.3",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc=",
-      "dev": true
+      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
     },
     "wrap-ansi": {
       "version": "2.1.0",
diff --git a/package.json b/package.json
index b8b85825..ab2db2a9 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "@types/humanize-string": "1.0.0",
     "@types/mocha": "5.2.5",
     "@types/mustache": "0.8.32",
-    "@types/node": "10.12.15",
+    "@types/node": "10.12.18",
     "ajv": "6.6.2",
     "async": "2.6.1",
     "async-pool-native": "0.1.0",
@@ -55,16 +55,16 @@
     "mocha": "5.2.0",
     "mocha-typescript": "1.1.17",
     "mustache": "3.0.1",
-    "ts-json-schema-generator": "0.37.1",
-    "ts-node": "7.0.1"
+    "ts-json-schema-generator": "0.38.1",
+    "ts-node": "7.0.1",
+    "typedoc": "0.14.0"
   },
   "devDependencies": {
     "@openstapps/configuration": "0.5.0",
     "conventional-changelog-cli": "2.0.11",
     "prepend-file-cli": "1.0.6",
-    "rimraf": "2.6.2",
+    "rimraf": "2.6.3",
     "tslint": "5.12.0",
-    "typedoc": "0.13.0",
     "typescript": "3.2.2"
   }
 }
diff --git a/src/common.ts b/src/common.ts
index 9a2d74e4..2e517d1b 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 StApps
+ * Copyright (C) 2018-2019 StApps
  * This program is free software: you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 3.
@@ -129,7 +129,13 @@ export function getProjectReflection(srcPath: PathLike): ProjectReflection {
   const inputFiles = app.expandInputFiles([srcPath.toString()]);
 
   // get project reflection from input files
-  return app.convert(inputFiles);
+  const result = app.convert(inputFiles);
+
+  if (typeof result === 'undefined') {
+    throw new Error('Project reflection could not be generated.');
+  }
+
+  return result;
 }
 
 /**
diff --git a/src/routes.ts b/src/routes.ts
index a494a944..871317cd 100644
--- a/src/routes.ts
+++ b/src/routes.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 StApps
+ * Copyright (C) 2018-2019 StApps
  * This program is free software: you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 3.
@@ -29,6 +29,10 @@ import {RouteWithMetaInformation} from './common';
 export async function gatherRouteInformation(reflection: ProjectReflection): Promise<RouteWithMetaInformation[]> {
   const routes: RouteWithMetaInformation[] = [];
 
+  if (!Array.isArray(reflection.children)) {
+    throw new Error('Project reflection doesn\'t contain any modules.');
+  }
+
   await asyncPool(2, reflection.children, async (module: any) => {
     if (Array.isArray(module.children) && module.children.length > 0) {
       await asyncPool(2, module.children, (async (node: any) => {
@@ -49,6 +53,10 @@ export async function gatherRouteInformation(reflection: ProjectReflection): Pro
     }
   });
 
+  if (routes.length === 0) {
+    throw new Error('No route information found.');
+  }
+
   return routes;
 }
 
@@ -163,6 +171,10 @@ export function generateDocumentationForRoute(routeWithInfo: RouteWithMetaInform
 export function getNodeMetaInformationMap(projectReflection: ProjectReflection): NodesWithMetaInformation {
   const nodes: NodesWithMetaInformation = {};
 
+  if (typeof projectReflection.children === 'undefined') {
+    throw new Error('Project reflection doesn\'t contain any modules.');
+  }
+
   // iterate over modules
   projectReflection.children.forEach((module: any) => {
     if (Array.isArray(module.children) && module.children.length > 0) {
diff --git a/src/schema.ts b/src/schema.ts
index 5fbb2197..ce6ed087 100644
--- a/src/schema.ts
+++ b/src/schema.ts
@@ -108,6 +108,10 @@ export class Converter {
 export function getValidatableTypesFromReflection(projectReflection: ProjectReflection): string[] {
   const validatableTypes: string[] = [];
 
+  if (typeof projectReflection.children === 'undefined') {
+    throw new Error('Project reflection doesn\'t contain any modules.');
+  }
+
   // iterate over modules
   projectReflection.children.forEach((module) => {
     if (Array.isArray(module.children) && module.children.length > 0) {
diff --git a/test/Schema.spec.ts b/test/Schema.spec.ts
index c00ae8b9..363c1917 100644
--- a/test/Schema.spec.ts
+++ b/test/Schema.spec.ts
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 StApps
+ * Copyright (C) 2018-2019 StApps
  * This program is free software: you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation, version 3.
@@ -16,18 +16,10 @@ import {Logger} from '@openstapps/logger';
 import {expect} from 'chai';
 import {slow, suite, test, timeout} from 'mocha-typescript';
 import {join} from 'path';
-import {ProjectReflection} from 'typedoc';
 import {Converter, getValidatableTypesFromReflection} from '../src/schema';
 
 const logger = new Logger();
 
-type RecursivePartial<T> = {
-  [P in keyof T]?:
-  T[P] extends Array<infer U> ? Array<RecursivePartial<U>> :
-    T[P] extends object ? RecursivePartial<T[P]> :
-      T[P];
-};
-
 process.on('unhandledRejection', (err) => {
   logger.error('UNHANDLED REJECTION', err.stack);
   process.exit(1);
@@ -79,7 +71,7 @@ export class SchemaSpec {
 
   @test
   async getValidatableTypesFromReflection() {
-    const reflection: RecursivePartial<ProjectReflection> = {
+    const reflection: any = {
       children: [
         {
           children: [
diff --git a/test/resources/Foo.ts b/test/resources/Foo.ts
index 4ff6dce6..c8f1b2cc 100644
--- a/test/resources/Foo.ts
+++ b/test/resources/Foo.ts
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2018-2019 StApps
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 /**
  * @validatable
  */