fixed the build. Thanks Matt!

src/Ombi/package.json

@@ -91,7 +91,8 @@
     "zone.js": "^0.8.26"
   },
   "resolutions": {
-    "@types/tapable": "1.0.0"
+    "@types/tapable": "1.0.0",
+    "cypress/**/@types/sinon": "4.3.3"
   },
   "devDependencies": {
     "cypress": "^3.1.0"

src/Ombi/tsconfig.json

@@ -28,9 +28,6 @@
       }
     ]
   },
-  "types": [
-    "cypress"
-  ],
   "include": [
     "ClientApp/**/*",
     "typings/**/*",

src/Ombi/yarn.lock

@@ -210,13 +210,9 @@
     "@types/chai" "*"
     "@types/sinon" "*"
 
-"@types/sinon@*":
-  version "5.0.4"
-  resolved "https://registry.yarnpkg.com/@types/sinon/-/sinon-5.0.4.tgz#a765b390b373cf01a3b19b0c97f9eb4bb2a168b1"
-
-"@types/sinon@4.0.0":
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/@types/sinon/-/sinon-4.0.0.tgz#9a93ffa4ee1329e85166278a5ed99f81dc4c8362"
+"@types/sinon@*", "@types/sinon@4.0.0", "@types/sinon@4.3.3":
+  version "4.3.3"
+  resolved "https://registry.yarnpkg.com/@types/sinon/-/sinon-4.3.3.tgz#97cbbfddc3282b5fd40c7abf80b99db426fd4237"
 
 "@types/sizzle@*":
   version "2.3.2"