Android Question How to set up an Android 4.2.2 development environment on B4A version 13.4?

[TheLing]

I successfully installed B4A using OpenJDK 19 and android-36 following the steps on the webpage. However, I need to develop a small application for Android 4.2.2, but my environment doesn't support this version. How should I configure the environment? Thank you!

 

[Erel]

but my environment doesn't support this version

Please post the exact error you are encountering.

 

[TheLing]

Please post the exact error you are encountering.

B4A Version: 13.40
Parsing code. (0.05s)
Java Version: 19
Building folders structure. (0.02s)
Running custom action. (0.06s)
Compiling code. (0.06s)
Compiling layouts code. (0.00s)
Organizing libraries. (0.00s)
(AndroidX SDK)
Compiling resources (0.11s)
Linking resources Error
error: resource android:style/Theme.Material.Light not found.
res\values-v20\theme.xml:6: error: style attribute 'android:attr/windowOptOutEdgeToEdgeEnforcement' not found.
error: resource android:style/TextAppearance.Material.Widget.ActionBar.Menu not found.
error: failed linking references.

It's about creating a GPS app for a car infotainment system running Android 4.2.2.

 

[Erel]

You are not using the correct android.jar.

Follow the instructions: https://www.b4x.com/b4a.html

 

[TheLing]

You are not using the correct android.jar.

Follow the instructions: https://www.b4x.com/b4a.html

Yes, it works fine with the Android 36 jar. This error occurs when using the Android 17 jar.

In the Manifest Editor, I set:

<uses-sdk android:minSdkVersion="17" android:targetSdkVersion="17"/>
The app works on Android 4.2.2.

 

[Erel]

You are confusing different things. Start here: https://www.b4x.com/android/forum/threads/android-jar-targetsdkversion-minsdkversion.87610/#content

While there are features that will not work with Android 4, they are not related to the issues you mentioned.