Inflate Exception Inside Fragment Class

Question

I am working on a project that requires fragments. Whenever I test run the project, in my fragment class, I get an exception pointing to the inflaterline of my oncreateview method, like shown below.

Process: com.example.joey.maranathahealthblog, PID: 29380
    android.view.InflateException: Binary XML file line #12: Error inflating class <unknown>
    at android.view.LayoutInflater.createView(LayoutInflater.java:633)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:806)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
    at com.example.joey.maranathahealthblog.BlogTabs.TabsFragments.HygieneClone.onCreateView(HygieneClone.java:27)

This is the snippet of my fragment class

public class HygieneClone extends Fragment {


    public HygieneClone() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment

        //  error occurs here
        return inflater.inflate(R.layout.fragment_hygiene_clone, container, false); 
    }

}

My layout file is shown below:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.joey.maranathahealthblog.BlogTabs.TabsFragments.HygieneClone">

<android.support.v7.widget.RecyclerView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/hygiene_recyclerView"/>

<android.support.design.widget.FloatingActionButton
    android:id="@+id/newPost_Fab"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:backgroundTint="@color/colorPrimary"
    android:src="@drawable/ic_add_black_24dp"
    android:layout_alignParentBottom="true"
    android:layout_alignParentRight="true"
    android:layout_marginRight="20dp"
    android:layout_marginBottom="40dp"/>

What could be causing this, as the app does not even load the first screen due to this exception.

Answer 1

Cause you don't have dependencies relate to android.support.design.widget.FloatingActionButton. Try add -- compile 'com.android.support:design:23.2.0' in your build.gradle