Run time error on Android

8Observer8 · December 12, 2023, 2:11pm

Godot Version

4.2.1

Question

Why does this error happen? I tried to run on devices with Android 7 and Android 13. The device with Android 7 shows the message below but the device with Android 13 shows nothing. I see the Godot Engine logo before the application stops.

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mygame/com.godot.game.GodotApp}: java.lang.IllegalStateException: Unable to initialize engine native layer
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2723)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2784)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1523)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:163)
at android.app.ActivityThread.main(ActivityThread.java:6238)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:933)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)
Caused by: java.lang.IllegalStateException: Unable to initialize engine native layer
at org.godotengine.godot.GodotFragment.performEngineInitialization(GodotFragment.java:191)
at org.godotengine.godot.GodotFragment.onCreate(GodotFragment.java:182)
at androidx.fragment.app.Fragment.performCreate(Fragment.java:2949)
at androidx.fragment.app.FragmentStateManager.create(FragmentStateManager.java:475)
at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:278)
at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:2189)
at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:2100)
at androidx.fragment.app.FragmentManager.execSingleAction(FragmentManager.java:1971)
at androidx.fragment.app.BackStackRecord.commitNowAllowingStateLoss(BackStackRecord.java:311)
at org.godotengine.godot.GodotActivity.onCreate(GodotActivity.kt:84)
at com.godot.game.GodotApp.onCreate(GodotApp.java:45)
at android.app.Activity.performCreate(Activity.java:6857)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2676)
... 9 more

marko995 · December 12, 2023, 2:31pm

Which phones are you using?
Maybe they are not support vulkan renderer…

8Observer8 · December 12, 2023, 2:38pm

Redmi 4x
Infinix Hot 30

I think the second one doesn’t support Vulkan either because it costs $110 only. I want to develop for budget phones too.

Is the solution to use Godot 3? Or can I switch Godot 4 to OpenGL ES 3?

marko995 · December 12, 2023, 3:08pm

try compatibility renderer first

8Observer8 · December 12, 2023, 3:49pm

I tried it on Readmi 4x:

But I have the same errors like before. Redmi 4x supports ES 3.1. I will try to run the app on Infinix later.

8Observer8 · December 13, 2023, 12:48pm

I tried to run the app with Godot 4 on Infinix Hot 30 in “Compatibility” mode but it stops without messages. I think the solution will be to use Godot 3 for phones that don’t support Vulkan.

Joined72 · December 17, 2023, 3:18am

I found a bug that caused GLES3 crash in old devices, take a look here:

github.com/godotengine/godot

Godot 4.2.1 Compatibility Rendering (GLES3) don't works at all on a 3 Years Old Andoid Device

opened 10:04AM - 13 Dec 23 UTC

joined72

platform:android topic:rendering needs testing

### Tested versions Godot 4.2.1 ### System information Android 8.0 - Godot 4.…2.1 Compatibility Rendering (GLES3) ### Issue description I created an empty project with an empty scene with the Compatibility Rendering modality, after exported it for Android and upload to my Old Huawei 10" Tablet (Android 8 updated on Sep/2020), results? After showing the Godot Logo the app freeze. Initially, I was discouraged thinking that my old tablet probably missing the OpenGL ES 3.0 driver/feature (GLES3) but to be sure I installed GFXBench, an Android App able to test and bench all the device’s graphic abilities. The app showed me that my device has full support for OpenGL ES 1.0, 2.0, and 3.0 but hasn’t any support for Vulkan, OpenGL ES 3.1 and 3.2. To be sure I executed all the OpenGL ES 3.0 tests and to my great surprise, all works fine, as you can see from the following image. ![Screenshot_20231213-104133](https://github.com/godotengine/godot/assets/19651914/0fc21859-bf7a-48c7-931e-8239e612d4c2) So now my question is… how can I help to fix this bug? ### Steps to reproduce You need an Old Android Device. ### Minimal reproduction project (MRP) Any empty project with an empty scene in Compatibility Modality

Was an old Godot 3.2 bug, but I think it was propagated to the 4.2 version too.

8Observer8 · December 18, 2023, 12:02pm

It is very sad. I decided to use Qt C++, pure OpenGL ES 2.0, Box2D, Bullet Physics, OpenAL and FreeTexturePacker

My few examples in pure WebGL 1.0 and Box2D-WASM:

Qt C++ and OpenGL ES 2.0 on Redmi 4X:

Joined72 · December 25, 2023, 4:02pm

Yes I understand, but it’s this power and flexible as Godot is?

8Observer8 · December 25, 2023, 10:12pm

Developers of Godot decided to focus on powerful devices that has Vulkan. It’s impossible now to build apps for Android with OpenGL ES 2.0. I cannot develop for Redmi 4x anymore. I want to develop for budget devices. I didn’t tried Godot 3 because I think it will be deprecated soon. I tried libGDX yesterday but Android Studio is too heavy for my laptop ASUS K53SV. Qt Creator is lightweight and it’s easy to build for Android. It has built-in modules for WebSockets, SQLite, JSON, XML and so on. I wrote simples examples with OpenAL, Box2D and Bullet Physics that I has run on physical Android devices.

I extracted some models, textures and animations from the original Resident Evil game. I want to make mini games with multiplayer to study Bullet Physics. I want to make it for education as hobby. This is my WebGL examples: https://8observer8.github.io/ I imported models to pure WebGL. Now I want to import them to Qt OpenGL for Android:

jill-animations-webgl-js

barry-animations-webgl-js

Joined72 · December 26, 2023, 7:31am

Really impressive, congratulation.

Can I ask you to port your game on gles3 just to test if it’s your device gles3 issue or, as I think, a Godot gles3 misconfiguration bug?

8Observer8 · December 27, 2023, 7:22pm

I wrote an example on Qt6 and OpenGL that shows a version of OpenGL ES. It is ES 3.2 on my Redmi 4X. I run it on the physical device. I use scrcpy to show the physical Android screen to computer:

It works on Windows too (must work on Linux, macOS, iOS and even web with QtWebAssembly module) on one code base in C++. Qt has the same signal/slot mechanism like Godot

#include <QtGui/QOpenGLFunctions>
#include <QtGui/QSurfaceFormat>
#include <QtOpenGLWidgets/QOpenGLWidget>
#include <QtWidgets/QApplication>
#include <QtWidgets/QLabel>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QWidget>

class OpenGLWidget : public QOpenGLWidget, private QOpenGLFunctions
{
    Q_OBJECT

signals:
    void showInfoSignal(const QString &openGLVersion, const QString &shadingVersion, const QString &vendor);

private:
    void initializeGL() override
    {
        initializeOpenGLFunctions();
        glClearColor(0.f, 1.f, 0.f, 1.f);
        QString version(QString("OpenGL version: %1").arg((const char*) glGetString(GL_VERSION)));
        QString shadingLanguageVersion(QString("GLSL version: %1").arg((const char*) glGetString(GL_SHADING_LANGUAGE_VERSION)));
        QString vendor(QString("Vendor: %1").arg((const char*) glGetString(GL_VENDOR)));
        emit showInfoSignal(version, shadingLanguageVersion, vendor);
    }

    void paintGL() override
    {
        glClear(GL_COLOR_BUFFER_BIT);
    }
};

class MainWindow : public QWidget
{
    Q_OBJECT
public:
    MainWindow()
    {
        setWindowTitle("OpenGL Version");
        resize(300, 300);

        m_openGLVersionLabel = new QLabel();
        m_shadingLanguageVersionLabel = new QLabel();
        m_vendorLabel = new QLabel();
        OpenGLWidget *openGLWidget = new OpenGLWidget();

        m_openGLVersionLabel->setSizePolicy(QSizePolicy::Policy::Fixed, QSizePolicy::Policy::Fixed);
        m_shadingLanguageVersionLabel->setSizePolicy(QSizePolicy::Policy::Fixed, QSizePolicy::Policy::Fixed);
        m_vendorLabel->setSizePolicy(QSizePolicy::Policy::Fixed, QSizePolicy::Policy::Fixed);

        QVBoxLayout *layout = new QVBoxLayout();
        layout->addWidget(m_openGLVersionLabel);
        layout->addWidget(m_shadingLanguageVersionLabel);
        layout->addWidget(m_vendorLabel);
        layout->addWidget(openGLWidget);
        setLayout(layout);

        connect(openGLWidget, &OpenGLWidget::showInfoSignal, this, &MainWindow::showInfoSlot);
    }

private slots:
    void showInfoSlot(const QString &openGLVersion, const QString &shadingVersion, const QString &vendor)
    {
        m_openGLVersionLabel->setText(openGLVersion);
        m_shadingLanguageVersionLabel->setText(shadingVersion);
        m_vendorLabel->setText(vendor);
    }

private:
    QLabel *m_openGLVersionLabel;
    QLabel *m_shadingLanguageVersionLabel;
    QLabel *m_vendorLabel;
};

#include "main.moc"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();
    return a.exec();
}

8Observer8 · December 27, 2023, 7:25pm

So my device (Redmi 4X) supports ES 3.2 but why Godot 4 application does not work when I run in this mode that must support even ES 3.0:

alex2782 · December 27, 2023, 7:31pm

I heard that Ramatak wanted to support old “potato” phones better.

8Observer8 · December 27, 2023, 7:47pm

I will use libGDX/Java, Qt/OpenGL/C++ and WebGL/JS. Maybe later the problem was solved in Godot 4.

Now I know how to work with libGDX from the command line to build apps for Android and Desktop (I didn’t try to build for HTML5). I use Sublime Text 4 with libGDX. Android Studio is too slow for my laptop and makes it noisy. Sublime Text 4 works like Notepad++ - very fast.

It is simple to run libGDX build from command line:

Download the gdx-setup.jar file here: Creating a Project - libGDX
Run it and press the Generate button:

Go to the generated folder:
Run this commands to run on the Desktop: "./gradlew" desktop:run
Run this commands to run on the Android: "./gradlew" android:installDebug

It is require 2-3 second to run on Desktop and 5-6 seconds to run on Android. At first time Gradle require a few minutes to build.

How it looks in Sublime Text 4 (one code base in the core directory):

How it looks on physical Android device using scrcpy:

8Observer8 · December 27, 2023, 8:25pm

My device really has OpenGL ES 3.2:

Joined72 · December 27, 2023, 8:42pm

Can I sincerely ask you to open a new Godot 4.2.1 bug issue on GitHub, attaching all the docs and photo of this thread, explaining that the Godot 4 Compatibility GLES3 Rendering issues AREN’T related to any old Android Devices GLES drivers bug, but ONLY to Godot GLES3 misconfigurations/bugs?

We definitively need the Godot Devs start to work and fixes all this issues to can work on Android because it’s really impossible that a device with 3.2 GLES support works fine with other engines and crash on Godot 4.

Open a new issue here:

8Observer8 · December 27, 2023, 8:56pm

Done: The default Godot 4.2.1 application crashes in compatible mode on the Redmi 4X with OpenGL ES 3.2 · Issue #86565 · godotengine/godot · GitHub

Joined72 · December 27, 2023, 9:08pm

Thanks, I’m commenting on it.

Joined72 · December 29, 2023, 11:32pm

I want buy an used Redmi 4x to can further test and fix this bug, can you tell me the exact device code so that I can buy the correct Redmi 4x version, please?