java.lang.UnsatisfiedLinkError has unexpected e_machine: 40

Question

I am trying to use the ePOS-Print SDK for Android.

It works fine on ARM Devices. Just not on x86 Devices.

Is the Library only working on ARM Devices or is there a way to make it work on x86 Devices?

04-17 09:11:53.390 10989-12211/at.test.test E/art: dlopen("/data/app/test.test-2/lib/x86/libeposprint.so", RTLD_LAZY) failed: dlopen failed: "/data/app/at.test.test-2/lib/x86/libeposprint.so" has unexpected e_machine: 40

Process: at.calyx.calyxpos, PID: 10989
java.lang.UnsatisfiedLinkError: dlopen failed: "/data/app/at.test.test/lib/x86/libeposprint.so" has unexpected e_machine: 40
at java.lang.Runtime.loadLibrary(Runtime.java:371)
at java.lang.System.loadLibrary(System.java:989)
at com.epson.eposprint.Builder.<clinit>(Builder.java:17)

Sonata

Answer 1

I had a very similar error by trying to run an ARM app on Android x86. I was able to bypass it by installing libhoudini:

1. On Android: Settings -> Apps Compatibility -> Enable Native Bridge
2. Start Terminal Emulator (or press Alt-F1)
3. Login as root: su -
4. Run cd ~ /system/bin/enable_nativebridge
5. Verify success by inspecting logs: logcat -T 10
6. Reboot and re-install your ARM apps

More details

Hilburn

this saves my day. on android x86 9.0, the menu for configuring Enable Native Bridge is under Android x86 Options. – Protoactinium

Answer 2

I think this will help you

Put in gradle.properties this line

android.useDeprecatedNdk=true;

and in app/build.gradle this line in defaultConfig field

   ndk {
                abiFilters "armeabi", "armeabi-v7a","x86"
        }

Spitler

Thanks for your response. I had to create a gradle.properties file. But it doesnt change anything. Do you have any other ideas? – Sonata

no need to create gradle.properties if you are using androd studio. Its already exists in project structure – Spitler

sure what part do you want me to post? – Sonata

@Spitler not working for me still can't find .so file with System.loadLibrary("ffmpeg"); iknw every thing is correct but it's device architecture problem – Iona

Answer 3

I think you need build "libeposprint.so" file for x86.

Chino

how to do it. plz help? – Ironsmith