I didn't open.

[kaanf]

Sorry guyz, I am new in Android Studio. I have an error like this

"error running 'ARCore-Location-master-app': Default Activity not found"

Thank you for help.

[monxarat]

In the manifest file, you must set an Activity to MAIN action and category LAUNCHER

        <activity
            android:name="<Activity class name>">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>