Classpath problem running an Android App

Im trying to run an opensource Android application from within Jebrains, the problem seems to be to do with package hierachy, although when I go to the module settings the src folder is correct when I actually try to run the application ist repeats the package hierachy in the class anme it is trying to find

Starting: Intent { cmp=org.app.mobile/.ui.activities.HomeActivity }

Error type 3
Error: Activity class {org.app.mobile/org.app.mobile.ui.activities.HomeActivity} does not exist.

it seems to be repeating the org.app.mobile part ,

the AndroidManifest.xml fileincludes

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="org.app.mobile"
....................

<activity android:name=".ui.activities.HomeActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

which seems okay

(Im an exprienced Java developer but this is my fiirst attempt at trying to dosomething on Android)