PropTypes Validation

[ShiiRochi]

I created stylysheet with StyleSheet.create({...}), and send part of it to PhoneInput, however everytime while running the application I'm facing the following messages:

Invalid prop flagStyle of type number supplied to PhoneInput, expected object

Code is the following:
<PhoneInput textStyle={styles.phoneInputText} flagStyle={styles.phoneInputFlag} ref="phoneInput" onChangePhoneNumber={(phoneNumber)=>{this.onPhoneFieldChange(phoneNumber, this.refs.phoneInput.isValidNumber());}}/>
As you can see I'm sending style.phoneInputFlag, that is equal to:
phoneInputFlag:{ width:65, height:50, borderWidth:0 }