[Abe]

I have to implement the integration of my app into Android with JNI. The documentation of Felgo mentions a demo application:

The demo is also available with the Felgo SDK: <i><Path to Felgo>/Examples/Felgo/appdemos/cpp-qml-integration</i>

Unfortunately I get a build error:

FAILURE: Build failed with an exception.

* Where:
Build file '/Users/abe/Felgo/Examples/Felgo/appdemos/build-Cpp-qml-integration-Android_f_r_arm64_v8a_Clang_Qt_5_13_2_for_Android_ARM64_v8a-Debug/android-build/build.gradle' line: 19

* What went wrong:
A problem occurred evaluating root project 'android-build'.
> Failed to apply plugin [id 'com.android.application']
   > Minimum supported Gradle version is 3.3. Current version is 2.14.1. If using the gradle wrapper, try editing the distributionUrl in /Users/joerg/Felgo/Examples/Felgo/appdemos/build-Cpp-qml-integration-Android_f_r_arm64_v8a_Clang_Qt_5_13_2_for_Android_ARM64_v8a-Debug/android-build/gradle/wrapper/gradle-wrapper.properties to gradle-3.3-all.zip

How can I define a newer grandle version?

I tried to modify the build.grandle file based on a new project from a template:

buildscript {
    repositories {
        maven { url 'https://maven.google.com' }
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.1'
    }
}

allprojects {
    repositories {
        maven { url 'https://maven.google.com' }
        jcenter()
        maven { url 'https://install.felgo.com/maven/' }
    }
}

apply plugin: 'com.android.application'

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation "com.android.support:support-core-utils:28.0.0"
    implementation "com.android.support:appcompat-v7:28.0.0"

}

How I get the following error:

FAILURE: Build failed with an exception.

* Where:
Build file '/Users/abe/Felgo/Examples/Felgo/appdemos/build-Cpp-qml-integration-Android_f_r_arm64_v8a_Clang_Qt_5_13_2_for_Android_ARM64_v8a-Debug/android-build/build.gradle' line: 20

* What went wrong:
A problem occurred evaluating root project 'android-build'.
> Failed to apply plugin [id 'com.android.application']
   > Minimum supported Gradle version is 4.10.1. Current version is 2.14.1. If using the gradle wrapper, try editing the distributionUrl in /Users/joerg/Felgo/Examples/Felgo/appdemos/build-Cpp-qml-integration-Android_f_r_arm64_v8a_Clang_Qt_5_13_2_for_Android_ARM64_v8a-Debug/android-build/gradle/wrapper/gradle-wrapper.properties to gradle-4.10.1-all.zip

 

 

[AlexFelgo Team]

Hi,

you can change the version in the wrapper file for this example at: <Path to your installation>/Examples/Felgo/appdemos/cpp-qml-integration/android/gradle/wrapper

Cheers,
Alex

[Abe]

Unfortunately this leads to the next error:

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'android-build'.
> No toolchains found in the NDK toolchains folder for ABI with prefix: mips64el-linux-android

 

I have chosen the Nexus 5X simulator for the deployment target. Usually the simulator works quite well to check my development.

 

[AlexFelgo Team]

Please check if all the used version match the versions from a new template project.

Best,
Alex

[Abe]

Thanks for your reply. Which version of which setting respectively definition do you mean? Do you suggest to create a new project from the template and compare some settings? Which setting? Thanks for your assistance.

[AlexFelgo Team]

Hi Abe,

yes please create a new template and inspect AndroidManifest.xml, build.gradle and your *.pro file.

Best,
Alex

[Abe]

Thanks. I decided to create a new project and implement the test app on my own by following the Felgo tutorial: https://felgo.com/cross-platform-development/how-to-expose-a-qt-cpp-class-with-signals-and-slots-to-qml