Fixed build

app/tsconfig.json

@@ -6,10 +6,13 @@
         "target": "es5",
         "lib": [
             "es6",
-            "dom"
+            "dom",
+            "scripthost"
         ],
+        "module": "commonjs",
         "types": [
             "webpack-env",
+            "core-js",
             "node"
         ],
         "strict": true,

common/tsconfig.json

@@ -0,0 +1,6 @@
+{
+    "compilerOptions": {
+        "experimentalDecorators": true,
+        "target": "es5"
+    }
+}

package.json

@@ -28,7 +28,7 @@
   "homepage": "https://github.com/amikhalev/sprinklers3#readme",
   "dependencies": {
     "@types/classnames": "^2.2.0",
-    "@types/core-js": "^0.9.42",
+    "@types/core-js": "^0.9.43",
     "@types/express": "^4.0.37",
     "@types/node": "^8.0.6",
     "@types/object-assign": "^4.0.30",

yarn.lock

@@ -12,7 +12,7 @@
   dependencies:
     "@types/node" "*"
 
-"@types/core-js@^0.9.42":
+"@types/core-js@^0.9.43":
   version "0.9.43"
   resolved "https://registry.yarnpkg.com/@types/core-js/-/core-js-0.9.43.tgz#65d646c5e8c0cd1bdee37065799f9d3d48748253"