diff --git a/.idea/typescript-compiler.xml b/.idea/typescript-compiler.xml
index a344cf824f1..295a757ca63 100644
--- a/.idea/typescript-compiler.xml
+++ b/.idea/typescript-compiler.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="TypeScriptCompiler">
-    <option name="isCompilerEnabled" value="true" />
     <option name="typeScriptServiceDirectory" value="$PROJECT_DIR$/node_modules/typescript/lib" />
     <option name="trackFileSystemChanges" value="false" />
     <option name="useConfig" value="true" />
diff --git a/src/errorMessages.ts b/src/errorMessages.ts
index b6ddb5c1978..4f935ee13ca 100644
--- a/src/errorMessages.ts
+++ b/src/errorMessages.ts
@@ -22,7 +22,7 @@ export const buildInAppSpecified = `'build' in the application package.json ('%s
 Please move 'build' into the development package.json ('%s')
 `
 
-export const nameInBuildSpecified = `'name' in the 'build' is forbidden
+export const nameInBuildSpecified = `'name' in the 'build' is forbidden.
 
 Please move 'name' from 'build' into the application package.json ('%s')
 `
\ No newline at end of file
diff --git a/src/packager.ts b/src/packager.ts
index 62a6d466bf3..a2297bd079f 100644
--- a/src/packager.ts
+++ b/src/packager.ts
@@ -209,6 +209,10 @@ export class Packager implements BuildInfo {
         throw new Error(util.format(errorMessages.nameInBuildSpecified, appPackageFile))
       }
 
+      if (build.directories != null) {
+        throw new Error(`'directories' in the 'build' is not correct. Please move 'directories' from 'build' to root`)
+      }
+
       if (build.osx != null) {
         warn('"build.osx" is deprecated — please use "mac" instead of "osx"')
       }