References to other resources are not supported by build-time PNG generation

To support API SDK < 24 add the following line to your app build.gradle inside the android block:

defaultConfig {   vectorDrawables.useSupportLibrary = true}

If your minSdkVersion is 24 or higher, then your issue will be resolved on its own, because VectorDrawables have full support starting with this API.

See Android Developers: Vector Drawables Backward Compatibility Solution for details.

you need to use the hex code directly not referring to a resource.

<vector  <path    android:fillColor="#FFF"/></vector>

Little bit more context for this error:

• Android 5.0 (API level 21) was the first version to officially support vector drawables.
• If you use minSdkVersion lower than 20, there are two solutions for vector drawable
  • Android Studio's Vector Asset Studio generate PNG. Please take a look Android Studio document. But, references to other resources are not supported by build-time PNG generation.
  • Use support library
• Or, use 21 or above for minSdkVersion

For support library, add a statement to your build.gradle file:

android {  defaultConfig {    vectorDrawables.useSupportLibrary = true  }}dependencies {  compile 'com.android.support:appcompat-v7:23.2.0'}