No resource identifier found for attribute 'srcCompat' in package 'learnapp.android.example.com.learnapp'

Question

I am getting Error:(26) No resource identifier found for attribute 'srcCompat' in package 'learnapp.android.example.com.learnapp' when I try to run my app.I have just started learning android today.I have added a new activity and dint change anything in any xml files.

This is the exact error:

Documents/MyProjects/LearnApp/app/src/main/res/layout/activity_display_message.xml
Error:(26) No resource identifier found for attribute 'srcCompat' in package 'learnapp.android.example.com.learnapp'

Here is my activity_display_message.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context="learnapp.android.example.com.learnapp.DisplayMessageActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_display_message" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        app:srcCompat="@android:drawable/ic_dialog_email" />

</LinearLayout>

I have already read similar questions and saw that either the line

xmlns:app="http://schemas.android.com/apk/res-auto"

or

app:srcCompat="@android:drawable/ic_dialog_email" />

was wrong in their case which is not in my case.

Incase it matters this activity's parent activity is MainActivity.java

Can you try to set the drawable in you code `fab.setImageResource(R.drawable.ic_dialog_email);` — Harry, Jul 02 '16 at 17:13

score 35 · Answer 1 · edited May 23 '17 at 11:55

35

I just changed

xmlns:app="http://schemas.android.com/apk/res-auto"

to

xmlns:app="http://schemas.android.com/apk/lib/my_package_name"

I saw the answer here

edited May 23 '17 at 11:55

Community

1
1

answered Jul 02 '16 at 17:05

user3425344

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7

Don't do this. It changes the layout behaviour. If you try with a ScrollingActivity, it turns a mess – Zinc Nov 16 '16 at 09:35

score 14 · Answer 2 · answered Oct 16 '16 at 21:26

14

change app:srcCompat="@android:drawable/ic_dialog_email" for

android:src="@android:drawable/ic_dialog_email"

answered Oct 16 '16 at 21:26

tony gil

9,424
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1

but the real question is WHY is Android Studio using "app:srcCompat"??? I'm getting tired of having to change this. – eric Nov 03 '16 at 00:10
6

Because app:srcCompat was added in AppCompat library 23.2, so if you have 23.1, it just don't exist. You can use android:src, but app:srcCompat supports vector images, so it's better – Zinc Nov 16 '16 at 09:37

carrizo · Answer 3 · 2017-05-28T19:21:24.737

12

Also happens when you have outdated versions of the support libraries.

I updated from:

compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.android.support:design:23.1.1'
compile 'com.android.support:support-v4:23.1.1'
compile 'com.android.support:recyclerview-v7:23.1.1'

to:

compile 'com.android.support:appcompat-v7:24.2.1'
compile 'com.android.support:design:24.2.1'
compile 'com.android.support:support-v4:24.2.1'
compile 'com.android.support:recyclerview-v7:24.2.1'

(those were the newest versions at the moment I wrote this)

and the error is gone.

edited May 28 '17 at 19:21

answered Oct 10 '16 at 02:21

carrizo

689
6
15

This ultimately fixed it for me. Thanks! – Robert J. Clegg Jul 06 '17 at 11:10

Bhaya Parikh · Answer 4 · 2016-11-14T06:56:58.713

12

You can also try

android:src = "@drawable/ic_dialog_email"

instead of

app:srcCompat="@android:drawable/ic_dialog_email"

I had the same error and this worked for me.

edited Nov 14 '16 at 06:56

answered Nov 14 '16 at 06:14

Bhaya Parikh

145
1
4

Not good since we can't use vector drawables in pre-lollipop with `android:src` – rpattabi May 24 '17 at 07:36

score 2 · Answer 5 · answered Jul 02 '16 at 15:54

2

Add this vectorDrawables.useSupportLibrary = true to your app level build.gradle

defaultConfig {
    ...
    targetSdkVersion 23
    versionCode 1
    versionName "1.0"
    vectorDrawables.useSupportLibrary = true
}

answered Jul 02 '16 at 15:54

Murli Prajapati

8,833
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TinyTheBrontosaurus · Answer 6 · 2017-05-12T21:35:20.090

0

It looks like you just created a new project. So what fixed it for me was updating my build support tools, then creating a new project from scratch.

To update: Android Studio->Preferences...->Appearance & Behavior->System Settings->Android SDK->Android SDK Build-Tools->Check the box to update

edited May 12 '17 at 21:35

answered May 12 '17 at 18:33

TinyTheBrontosaurus

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score 0 · Answer 7 · answered Jun 09 '17 at 06:20

0

i got the similar issue.

my instructor try update API 22 to API 25, and it's work. maybe you could try on the same.

answered Jun 09 '17 at 06:20

shiba

1
1

score 0 · Answer 8 · answered Oct 12 '17 at 11:19

0

Happens if you start updating Android Studio and canceled the update midway complete the update process and everything should be back to normal

answered Oct 12 '17 at 11:19

Carlos LA

1

score -1 · Answer 9 · answered Dec 25 '16 at 10:49

-1

I'm using the srcCompat api as follows.

<android.support.v7.widget.AppCompatImageView
      android:id="@+id/dashboard"
      android:layout_width="60dp"
      android:layout_height="60dp"
      srcCompat="@drawable/dash">

More info

answered Dec 25 '16 at 10:49

Shree Harsha S

665
7
14

No resource identifier found for attribute 'srcCompat' in package 'learnapp.android.example.com.learnapp'

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