Android Question b4xgifview error when run project

meysam211 · Sunday at 11:45 AM

iam using latest version of b4xgifview in https://www.b4x.com/android/forum/t...ss-platform-animated-gif-view.118550/#content
when run sample as deug get error based on attached image
target sdk 35
b4a version 13.50
please any help

DonManfred · Sunday at 1:32 PM

You should never post such images.

Copy the error as text and post it. right click to copy from the window

meysam211 · Sunday at 3:31 PM

error:

Logger connected to:  Xiaomi 2404ARN45A
--------- beginning of main
Copying updated assets files (4)
*** Service (starter) Create ***
*** Service (starter) Create completed ***
*** Service (starter) Started ***
** Service (starter) Start **
*** Service (starter) Started completed ***
** Activity (main) Create (first time) **
Error occurred on line: 83 (B4XGifView)
java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.keywords.Common.CallSubDebug2(Common.java:1142)
    at b4a.example.b4xpagesmanager._createpageifneeded(b4xpagesmanager.java:1068)
    at b4a.example.b4xpagesmanager._showpage(b4xpagesmanager.java:425)
    at b4a.example.b4xpagesmanager._addpage(b4xpagesmanager.java:245)
    at b4a.example.b4xpagesmanager._addpageandcreate(b4xpagesmanager.java:259)
    at b4a.example.b4xpagesmanager._initialize(b4xpagesmanager.java:165)
    at b4a.example.main._activity_create(main.java:415)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:157)
    at b4a.example.main.afterFirstLayout(main.java:105)
    at b4a.example.main.access$000(main.java:17)
    at b4a.example.main$WaitForLayout.run(main.java:83)
    at android.os.Handler.handleCallback(Handler.java:1029)
    at android.os.Handler.dispatchMessage(Handler.java:107)
    at android.os.Looper.loopOnce(Looper.java:274)
    at android.os.Looper.loop(Looper.java:369)
    at android.app.ActivityThread.main(ActivityThread.java:10090)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:616)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1137)
Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:336)
    at anywheresoftware.b4a.debug.Debug.CallSubNew2(Debug.java:285)
    ... 25 more
Caused by: java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.debug.Debug.CallSub4(Debug.java:318)
    ... 26 more
Caused by: java.lang.ClassNotFoundException: pl$droidsonroids$gif$GifDrawable
    at anywheresoftware.b4j.object.JavaObject.getCorrectClassName(JavaObject.java:316)
    at anywheresoftware.b4j.object.JavaObject.InitializeNewInstance(JavaObject.java:104)
    at b4a.example.b4xgifview._setbitmap(b4xgifview.java:211)
    at b4a.example.b4xgifview._setgif2(b4xgifview.java:241)
    at b4a.example.b4xgifview._setgif(b4xgifview.java:57)
    at b4a.example.b4xmainpage._b4xpage_created(b4xmainpage.java:57)
    ... 28 more
** Activity (main) Resume **

teddybear · Sunday at 4:44 PM

meysam211 said:
iam using latest version of b4xgifview in https://www.b4x.com/android/forum/t...ss-platform-animated-gif-view.118550/#content
when run sample as deug get error based on attached image
target sdk 35
b4a version 13.50
please any help

Go to https://www.b4x.com/b4a.html
Reinstall b4a.
Make sure to follow the instructions.

meysam211 · Sunday at 5:12 PM

teddybear said:
Go to https://www.b4x.com/b4a.html
Reinstall b4a.
Make sure to follow the instructions.

What effect does this have?

Erel · Monday at 5:16 AM

The example works fine here...

Have you downloaded the additional dependencies and copied them to the additional libs folder: https://www.b4x.com/android/forum/t...ss-platform-animated-gif-view.118550/#content

Can you post the full text from the compilation window?

Last question - are you running it on a real device? Which one?

meysam211 · Tuesday at 5:33 PM

Erel said:
The example works fine here...

Have you downloaded the additional dependencies and copied them to the additional libs folder: https://www.b4x.com/android/forum/t...ss-platform-animated-gif-view.118550/#content

Can you post the full text from the compilation window?

Last question - are you running it on a real device? Which one?

Yes, I put all the requirements in the library folder and the answer to your second question is yes, I run the program on a real device.

Sagenut · Tuesday at 9:07 PM

meysam211 said:
Yes, I put all the requirements in the library folder

Just as a check, be sure to put the dependencies and the gif library in the Additional Libraries B4X folder and not in the B4A Internal libraries folder.
And check if the path to Additional Libraries folder is correctly set in B4A configuration.

meysam211 · Tuesday at 10:46 PM

Sagenut said:
Just as a check, be sure to put the dependencies and the gif library in the Additional Libraries B4X folder and not in the B4A Internal libraries folder.
And check if the path to Additional Libraries folder is correctly set in B4A configuration.

I checked both items and I did everything correctly, but the problem still persists.

teddybear · Wednesday at 2:12 AM

meysam211 said:
What effect does this have?

It works fine on the lastest version B4A.

If these dependent libraries are missing, it will throw an error during compiling. .
The issue here is that the runtime failure to find pl$droidsonroids$gif$GifDrawable.
1. Please show your dependency library versions.
2. What model is your Xiaomi phone?

meysam211 · Wednesday at 7:26 PM

I have attached all the documents for you. Please take a look and see where the problem lies.

Erel · 2026-07-23T05:35:01+0100

I don't know whether it is related to this issue, however you are not using the recommended Android SDK. Delete it and follow these steps: https://www.b4x.com/b4a.html

DonManfred · 2026-07-23T05:52:25+0100

additionally the additional library folder should NOT be under program files.
Put it on any other path

teddybear · 2026-07-23T06:43:06+0100

Erel said:
I don't know whether it is related to this issue, however you are not using the recommended Android SDK. Delete it and follow these steps: https://www.b4x.com/b4a.html

This is what I mentioned in post #4， I think it is related to this issue.

Go to https://www.b4x.com/b4a.html
Reinstall b4a.
Make sure to follow the instructions.

Sagenut · 2026-07-23T10:19:26+0100

I think it's worth to add a step in the Installation Guide with the correct structure of the Additional Libraries Folder and the info that it must not be inside the Program Files folder.

meysam211 · 2026-07-23T13:46:52+0100

So why does the previous version of the b4xgifview library, which gives a 16kb error in the Google console, work correctly and run with the same paths and configuration?

Android Question b4xgifview error when run project

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