libpng error: Not a PNG file Error Showing In Android Studio

Question

I just Imported a project from Eclipe to Android Studio. Just a plain and simple project. But the project folder is showing one error .

May I know what is the correct way to achieve my objective? I am new in Android-studio .Does any guys meet this issue?Any help would be greatly appreciated.

Here is Logcat :

Execution failed for task ':app:mergeDebugResources'.
> Error: Failed to run command:
    /home/amiya/android-studio/sdk/build-tools/android-4.4.2/aapt s -i /home/amiya/vola/app/src/main/res/drawable-mdpi/call.png -o /home/amiya/vola/app/build/res/all/debug/drawable-mdpi/call.png
  Error Code:
    42
  Output:
    libpng error: Not a PNG file

Here is my build.gradle

 apply plugin: 'android'

android {


    compileSdkVersion 19
    buildToolsVersion "19.0.3"



    defaultConfig {
        minSdkVersion 17
        targetSdkVersion 19
    }


    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }



}

dependencies {
    compile 'com.android.support:appcompat-v7:+'
    compile 'com.android.support:support-v4:+'
    compile 'com.google.android.gms:play-services:+'
    compile files('libs/google-play-services.jar')
    compile files('libs/livesdk.jar')
}

I am not using this file anywhere in my project with that name !! There are many other png files in my project though.

Same question, same comment: Check if the mentioned file call.png exists and if it is a valid PNG file. E.g. open it with an hex editor and verify that it has the "PNG" in the first bytes. — Robert, Apr 29 '14 at 13:45
Also look for IHDR within the first 16 bytes. Chances are the file contains "CgBI" where "IHDR" is supposed to be. — Glenn Randers-Pehrson, Dec 31 '15 at 00:45
I am having same error but it is not showing any file name which is corrupted. — Vivek Mishra, Mar 15 '16 at 07:13

IntelliJ Amiya · Accepted Answer · 2017-12-08T05:45:35.070

64

You should follow below steps.

Cut-paste the image on my desktop.
Opened it in an editor saved it as png. without renaming the file name.
Copy-pasted the .png image into the drawable folder.

You can use cruncherEnabled.

Returns true if the PNGs should be crunched, false otherwise.

android 
{ 
   aaptOptions
   {
   cruncherEnabled = false
   } 
}

Hope this helps you.

edited Dec 08 '17 at 05:45

answered Oct 01 '15 at 08:59

IntelliJ Amiya

74,896
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3

In my case, I am not getting which PNG file has this problem. So I am not able to apply your solutions! – Bharat Dodeja Mar 18 '16 at 09:53
@BharatDodeja Okay .Whats your logcat returns ? – IntelliJ Amiya Mar 18 '16 at 09:54
1

AAPT: libpng error: Not a PNG file AAPT: libpng error: Not a PNG file :aIDEConsumerOff:mergeDebugResources FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':aIDEConsumerOff:mergeDebugResources'. > Some file crunching failed, see logs for details * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. BUILD FAILED – Bharat Dodeja Mar 18 '16 at 09:58
@BharatDodeja I assume images are corrupted – IntelliJ Amiya Mar 18 '16 at 10:02
but my question is which image? :) – Bharat Dodeja Mar 18 '16 at 10:05
@BharatDodeja I did't get this type of `Error` yet .Okay . I will check on #SO . #IDE Not showing which ? – IntelliJ Amiya Mar 18 '16 at 10:08
1

Finally, I have found which drawables were not actual PNG by comparing res folder with res of my backup copy of working project. Their file sizes was different. :) – Bharat Dodeja Mar 18 '16 at 10:33
@BharatDodeja Did you fixed yet ? – IntelliJ Amiya Mar 18 '16 at 10:43
1

I set this in `android/build.gradle` and I was able to skip the 3 first steps. thanks! – Toni Michel Caubet Jan 13 '18 at 09:32

score 31 · Answer 2 · answered Jun 25 '16 at 17:26

31

Try this in build.gradle

android {
    ....
    aaptOptions {
        cruncherEnabled = false
    }
    ....
}

answered Jun 25 '16 at 17:26

Dormon Zhou

411
4
4

1

useNewCruncher = false – Jack Jul 07 '16 at 02:53
what is the difference between `useNewCruncher` and `cruncherEnabled` ? – natsumiyu Dec 06 '16 at 05:36

score 26 · Answer 3 · answered Jun 14 '16 at 09:51

26

Try run command

find . -type f -name "*.png" | xargs -L 1 -I{} file  -I {} | grep -v 'image/png; charset=binary$'

in your root project directory, it will show you all files that have .png extension, but are not pngs. Then you can resave them as png in some image editor. Before running this command clean project, to speed up the process.

answered Jun 14 '16 at 09:51

vbevans94

1,500
1
16
15

1

Prints "file: invalid option -- 'I'" for me. – kinORnirvana Jun 21 '16 at 06:50

score 20 · Answer 4 · edited Jul 14 '16 at 06:52

20

It might be because of renaming problem of the Image just cut the images and paste any where in the system and open each with the respective editor and save as the same but of PNG format and then copy and paste again to drawable folders. It works for me

AND PLEASE LOOK AT THE ISSUE WHICH I SUBMITTED TO THE ANDROID STUDIO TEAM

Hope it will help you all .

edited Jul 14 '16 at 06:52

IntelliJ Amiya

74,896
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answered Jul 25 '14 at 06:52

Spry Techies

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1

@MSI just ckeck Your Format of image by opening it into an image editor say Paint in windows and in linux image viewer and save check their format instead of looking at their extension right? – Spry Techies Sep 24 '14 at 04:55
1

@MSI I have edited my Answer Please do look at the issue link It will Solve Your Problem and if it helps don't forget to vote me up thanx – Spry Techies Sep 24 '14 at 04:58
1

thanks Spry. just use windows edit function to re-save it as png. and that works :) – user1177245 Apr 26 '15 at 18:20

score 3 · Answer 5 · answered Sep 23 '16 at 05:08

3

If you are using Mac OS, follow the steps below to get a png

Open image in preview
Go to file -> Export
Set format as png
Click on save

This will give you a valid png

Mere renaming or changing extension won't work in Mac OS.

answered Sep 23 '16 at 05:08

Android Mason

459
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17

score 2 · Answer 6 · edited Jun 20 '20 at 09:12

2

"PNG" in the error is clearly written in caps. So you need to see that the image has .PNG extension (in Capital).

Step 1: Open the image in Paint.

Step 2: Save the image Save as .PNG shown as below Click here to see how to save the image in PNG

Step 3: Refresh your project

Step 4: You should see like this -> See here

Please do reply if the issue is still not resolved

edited Jun 20 '20 at 09:12

Community

1
1

answered Nov 13 '16 at 20:36

dmellos

19
4

score 0 · Answer 7 · answered Oct 10 '18 at 12:01

0

As for me, what was happening is that I cloned the repository on Windows, and those PNG files were symlinks in Linux/Mac, but on Windows they were just invalid files. Once I did proper copies of the files instead of being symlinks, the build worked.

answered Oct 10 '18 at 12:01

knocte

16,941
11
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score -1 · Answer 8 · edited Feb 24 '16 at 08:34

-1

Try to use another png files. It seems something wrong with png's metadata. I had the same issue. Then I used some other png files and it fixed my issue.

edited Feb 24 '16 at 08:34

IntelliJ Amiya

74,896
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answered Feb 24 '16 at 08:29

bizimunda

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libpng error: Not a PNG file Error Showing In Android Studio

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