error: cannot find symbol variable abc_ic_ab_back_mtrl_am_alpha

Question

I added a Fragment to my Android Studio project using New > Fragment > Fragment (Blank). As a result when I try to run, the project won't compile because it cannot resolve R.drawable.abc_ic_ab_back_mtrl_am_alpha in

toolbar.setNavigationIcon(R.drawable.abc_ic_ab_back_mtrl_am_alpha);

Any ideas how to solve this?

It looks like I also lost access to android:buttonTint

from where you try to add image from activity or fragment itself? — Pratik Tank, Feb 25 '16 at 16:15
Activity. The act of creating the fragment through the shortcut breaks the existing code. I haven't done anything in the Fragment yet. Just creating it is the problem. Even after I delete the fragment, the problem persists. — Nouvel Travay, Feb 25 '16 at 16:17
There has to be a more meaningful way to say this than simply `try to apply grade`. — Nouvel Travay, Feb 25 '16 at 16:27
Try to put this code in your onCreate method in the fragment. **setHasOptionsMenu(true);** — Charllon Lobo, Feb 25 '16 at 16:29
Are you compiling with `'com.android.support:appcompat-v7:23.2.1'`? — IgorGanapolsky, Mar 29 '16 at 21:06
I've had problems with abc_ic_menu_share_mtrl_alpha too missing — JPM, May 02 '16 at 21:38
http://stackoverflow.com/questions/35628572/update-support-library-23-2-0-build-bug/41635020#41635020 — amiron, Jan 13 '17 at 12:51

Jon · Answer 1 · 2016-07-03T08:48:51.990

178

The name of the resource was changed in the 23.2.0 support library.

Modify abc_ic_ab_back_mtrl_am_alpha to abc_ic_ab_back_material

Edit: In 23.2.1 the name of the component was changed back to abc_ic_ab_back_mtrl_am_alpha

Edit: In 24.0.0 the name of the component was changed to: abc_ic_ab_back_material

edited Jul 03 '16 at 08:48

answered Mar 01 '16 at 10:36

Jon

7,941
9
53
105

6

Not exactly. this new resource is marked private in appcompat-v7 – Danpe Mar 05 '16 at 21:50
2

I get an error: `cannot find symbol variable abc_ic_ab_back_material` – IgorGanapolsky Mar 29 '16 at 21:03
2

In the last version of the support library (23.2.1) they changed it back to abc_ic_ab_back_mtrl_am_alpha – Jon Mar 29 '16 at 21:06
@Jon You are absolutely correct. You should post this as an answer on this question, and you'll get upvotes. Thanks! – IgorGanapolsky Mar 30 '16 at 14:11
Thanks - I'm glad it helped. I edited my answer to add the additional info – Jon Mar 30 '16 at 14:52
@Jon What about abc_ic_menu_share_mtrl_alpha? I have the same problem with it. – Ashraf Alshahawy Mar 30 '16 at 17:01
My latest build tools available is 23.0.3 I updated I don't see a 23.2.0 or 1 – JPM Apr 08 '16 at 20:00
@JPM the version atm is 23.3 - https://plus.google.com/+AndroidDevelopers/posts/iTDmFiGrVne – Jon Apr 08 '16 at 20:01
`abc_ic_ab_back_material` can't be found on Android 4.4 and lower – Artem Mostyaev Sep 01 '16 at 08:49
@ArtemMostyaev check out this question of mine: http://stackoverflow.com/questions/38467680/android-getting-resourcesnotfoundexception-for-abc-ic-ab-back-material – Jon Sep 01 '16 at 08:52
they can change in every patch lol just download it and import your project manually its best solution for all – erginduran Sep 16 '16 at 15:59
1

Well, in 25.0.0 abc_ic_ab_back_material is declared `private`. – Dzmitry Lazerka Oct 26 '16 at 22:10
Where do you change this value?? It's automatically built – Atieh Jun 02 '17 at 23:59
I found solution and left answer here https://stackoverflow.com/a/46815356/4186707 – Samik Oct 18 '17 at 17:02

score 17 · Answer 2 · answered Feb 25 '16 at 18:10

It looks like there are no images in raster format anymore because of the vector drawable implementation in the support library. So I put this vector drawable which represents the same arrow as it was in the previous version of support library. Right click on drawable folder, New -> Drawable resource file and paste this xml code:

<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:viewportWidth="24"
    android:viewportHeight="24">

    <path
        android:pathData="M0 0h24v24H0z" />
    <path
        android:fillColor="#ffffff"
        android:pathData="M20 11H7.83l5.59-5.59L12 4l-8 8 8 8 1.41-1.41L7.83 13H20v-2z" />
</vector>

Source

For APIs <21 you will have to add these properties into gradle build file:

Gradle Plugin 2.0+

android {  
   defaultConfig {  
     vectorDrawables.useSupportLibrary = true  
    }  
 }

Gradle Plugin 1.5

android {  
   defaultConfig {  
     generatedDensities = []  
  }  

  // This is handled for you by the 2.0+ Gradle Plugin  
  aaptOptions {  
    additionalParameters "--no-version-vectors"  
  }  
 }

See this blog post for more information.

score 7 · Answer 3 · answered May 07 '16 at 19:13

7

In My case, I done like this

final ActionBar ab = mActivity.getSupportActionBar();
             ab.setHomeAsUpIndicator(android.support.v7.appcompat.R.drawable.abc_ic_ab_back_material);

answered May 07 '16 at 19:13

user711023

71
1
1

score 2 · Answer 4 · answered Feb 25 '16 at 19:27

2

I had this problem when updated the Android Support Library to version 23.2.0

In my case, I was using a third party library that conflicted.

I switched to the new version of the third party library to solve the problem.

answered Feb 25 '16 at 19:27

Douglas Nassif Roma Junior

2,070
2
27
50

score 1 · Answer 5 · answered Feb 25 '16 at 17:04

Sorry that this might not be the answer you're looking for, but this happened to me too just a few minutes ago. I was alerted by Android Studio that there was a newer version of "com.google.android.gms" and "com.android.support" available in my Gradle file - at the time, I was using 8.3.0 for the former and 23.1.1 for the latter, so I updated to 8.4.0 and 23.2.0 and that's when I got the same problem as you, and Android Studio jumped to the values-v11.xml file in the library for AFollestad's Material Dialogs, and it seems that is causing problems because it uses the AppCompat library.

EDIT: Just found this, if you are using material-dialogs check if you're on version 0.8.5.5. If not, upgrade to it.

error: cannot find symbol variable abc_ic_ab_back_mtrl_am_alpha

5 Answers5

Linked