No resource identifier found for attribute 'roundIcon' in package 'android'

Question

I'm trying to compile my Project,but in there is some error

Android manifest.xml

 <application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">

I already try to rebuild project or sync with gradle but it's not working for me.

my dependencies

compile 'com.android.support:appcompat-v7:23.0.0'
compile 'com.android.support:design:23.0.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
compile project(':circleimageview-2.0.0-sources')

How to fix this error? I'm newbie to Android Studio.

Answer 1

roundIcon is an attribute that was first introduced for Android Nougat 7.1 (API level 25), therefore you have two available options based on the type of device you're targeting:

• If you're building an app specifically for Android 7.1 or above, ensure that minSdkVersion and targetSdkVersion are set to 25 in your app's build.gradle:

---

defaultConfig {
    minSdkVersion 25
    targetSdkVersion 25
}

---

• Alternatively, if you want to target older API levels, you will need to remove android:roundIcon from your manifest and only use android:icon.

Answer 2

I removed android:roundIcon from my manifest, but when compiling my project with API 24, the android:roundIcon property is still added to the AndroidManifest.xml.

In order to resolve my problem, I had to update my API to version 25 and set comileSdkversion to 25.