Android app doesn't run

[JoeCFD]

@mzimmers It is likely some java classes in Android/Sdk were built in Java 17 at the beginning. They were not rebuilt when you switched to Java 11.

Wait: you have JDK 21?

[mzimmers]

@JoeCFD said in Android app doesn't run:

Wait: you have JDK 21?

I have JDK 11, 17 and 21. I just don't know which one to use in my JDK/SDK/NDK/tools/JRE cocktail.

[JoeCFD]

@mzimmers I guess you can not have all of them. Remove 17 and 21 and SDK. Reinstall SDK if you use Java 11 which is recommended by Android for Andorid 13.

@ekkescorner wrote he is ok with 17. I have not tried it. You can try it out as well.

[mzimmers]

@JoeCFD but according to JKSH's post this is going to create a mismatch.

[JoeCFD]

@mzimmers I do not know the mismatch issue. I have only Open Java 11 in my Linux computer.

[mzimmers]

An update: I was able to install my application from the command line (using adb.exe). So, there's nothing wrong with my .apk file; it appears the problem is in Creator 12.0.1 (or the way I'm using it).

[ekkescorner]

@mzimmers perhaps you run into this: https://forum.qt.io/post/785169

[ekkescorner]

@mzimmers you can try a QtCreator 12.0.2 snapshot: https://download.qt.io/snapshots/qtcreator/12.0/12.0.2/28/
let us know if this works better

[Kim Nancy]

The error suggests an issue with the AndroidManifest.xml activity class. Verify correct package and activity names, check for recent changes, and ensure accuracy in your project's configuration.

[mzimmers]

@ekkescorner said in Android app doesn't run:

@mzimmers perhaps you run into this: https://forum.qt.io/post/785169

This definitely helps. Combined with regenerating the android files, and deleting the build directory, I'm past that error. (I'm onto another error, but I think this is my doing. I'm posting the relevant output here.)

E project.exampl: Not starting debugger since process cannot load the jdwp agent.
W System  : ClassLoader referenced unknown path:
I DecorView: [INFO] isPopOver=false, config=true
I DecorView: updateCaptionType >> DecorView@c5c2492[], isFloating=false, isApplication=true, hasWindowDecorCaption=false, hasWindowControllerCallback=true
W linker  : Warning: "/data/app/~~J43OE5MfUdxnaBtJpASGww==/org.qtproject.example-lakyk1zLaHW5FUEWp05dDQ==/lib/arm64/libc++_shared.so" unused DT entry: unknown processor-specific (type 0x70000001 arg 0x0) (ignoring)
W Gralloc3: mapper 3.x is not supported
E linker  : library "/system/lib/libcrypto.so" ("/system/lib/libcrypto.so") needed or dlopened by "/data/app/~~J43OE5MfUdxnaBtJpASGww==/org.qtproject.example-lakyk1zLaHW5FUEWp05dDQ==/lib/arm64/libQt6Core_arm64-v8a.so" is not accessible for the namespace: [name="classloader-namespace", ld_library_paths="", default_library_paths="/data/app/~~J43OE5MfUdxnaBtJpASGww==/org.qtproject.example-lakyk1zLaHW5FUEWp05dDQ==/lib/arm64:/data/app/~~J43OE5MfUdxnaBtJpASGww==/org.qtproject.example-lakyk1zLaHW5FUEWp05dDQ==/base.apk!/lib/arm64-v8a", permitted_paths="/data:/mnt/expand:/data/data/org.qtproject.example"]
W qt.tlsbackend.ossl: : Failed to load libssl/libcrypto.
W qt.network.ssl: : The backend "cert-only" does not support QSslKey
W qt.network.ssl: : Active TLS backend does not support key creation
W libappNgaIcdFw_arm64-v8a.so: QQmlApplicationEngine failed to load component
W libappNgaIcdFw_arm64-v8a.so: <Unknown File>: No module named "ngaIcdFw" found
W libappNgaIcdFw_arm64-v8a.so: exit app 0
05:42:56: 
"org.qtproject.example" died.

I think this has to do with a recent restructuring of my project files and folders.

So:

• delete the build directory
• clear your Qt Creator cache
• use Creator to generate but NOT modify AndroidManifest.xml

appears to be a successful procedure, if my above assumption about my project restructuring is true. I'll do some more experimentation and report back.

Oh, I tried 12.0.2...no improvement. Thanks for the link, though.

[ekkescorner]

@mzimmers said in Android app doesn't run:

use Creator to generate but NOT modify AndroidManifest.xml

if you mean by 'generate' to create templates then you must do your customization in AndrouidManifest: change application name, activity name and other properties of AndroidManifest. depends from your use-case

[JoeCFD]

@mzimmers said in Android app doesn't run:

W qt.tlsbackend.ossl: : Failed to load libssl/libcrypto.

W qt.tlsbackend.ossl: : Failed to load libssl/libcrypto.so
this lib is needed in your app. Add it to your build script.

[ekkescorner]

@mzimmers take a look at https://github.com/KDAB/android_openssl to get openssl

[mzimmers]

@ekkescorner @JoeCFD thanks for the suggestions.

After fixing the problem in my project structure, I am now able to load the program through Creator, sometimes. Sometimes I get the original error. I am also able to load the .apk from the command line (outside of Creator), so I'm reasonably confident the problem isn't in how my .apk is built.

I'm trying to ascertain why I'm still having only intermittent success with Creator. When I can determine a reliable procedure, I'll post it here.

[mzimmers]

Hi all - I need to return my attention to this -- I've got to get this working.

All my build setup items seem in place, and the project builds for Android just fine. But when I try to deploy and run, I get this same old error message:

Activity Manager threw the error: Error type 3
Error: Activity class {org.qtproject.example/org.qtproject.qt.android.bindings.QtActivity} does not exist.

Can anyone give me an idea what's going wrong here? Thanks...

[ekkescorner]

what's your actual environment ?
Qt version, QtCreator Version
JDK, NDK, Java API
QMake or CMake

[mzimmers]

@ekkescorner

• Qt 6.5.3
• Qt Creator 14.0.1
• SDK Version: 12.0
• NDK Version: 25.1.8937393
• JDK 17
• Using CMake
• Windows 11

Not sure what you mean by Java API, but maybe this will help:

C:\Users\michael.zimmers>java --version
java 17.0.9 2023-10-17 LTS
Java(TM) SE Runtime Environment (build 17.0.9+11-LTS-201)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.9+11-LTS-201, mixed mode, sharing)

C:\Users\michael.zimmers>

Thanks for any assistance.

[ekkescorner]

@mzimmers said in Android app doesn't run:

Not sure what you mean by Java API

I meant

set_target_properties(${MY_APP}
    PROPERTIES
        QT_ANDROID_MIN_SDK_VERSION 26
        QT_ANDROID_TARGET_SDK_VERSION 34
)

my settings from 6.7.1
for 6.5 seems to be 23, 33 (see https://www.qt.io/blog/qt-for-android-supported-versions-guidelines)

Thanks for any assistance.
ATM have no idea

have you created (updated) Android Templates so all fits together ?

[mzimmers]

@ekkescorner I've created the templates, but I haven't modified them. I can't find documentation that tells me how to populate the fields.

Note that the pulldowns for setting the SDK are disabled.

[ekkescorner]

@mzimmers said in Android app doesn't run:

Note that the pulldowns for setting the SDK are disabled.

Google has changed this long time ago. Now Min and Target are managed by Gradle and not the Manifest.

here's some info from my blogs HowTo do this with CMake:
https://ekkesapps.wordpress.com/qt-6-in-action/qmake-cmake/android-specific/