Add rootDir option to tsconfig.build.json

Author: ardatan

tsconfig.build.json

@@ -4,7 +4,8 @@
     "sourceMap": false,
     "inlineSourceMap": false,
     "incremental": false,
-    "declaration": true
+    "declaration": true,
+    "rootDir": "./packages"
   },
   "exclude": [
     "**/test/*.ts",