Unable to load native library when running titanium android app

Question

I'm building an Android app using Titanium. My Android module com.tgl.androidmodule includes a native lib called libAlibrary-jni.so .

In my .apk, the native libs are present in their correct folders (lib/armeabi, lib/armeabi-v7a, lib/x86) but I still get an error when trying to load the library dynamically : System.loadLibrary("Alibrary-jni");

Here is the full stacktrace of the error:

11-12 08:46:00.654: D/dalvikvm(381): Trying to load lib /data/data/com.fw.test/lib/libstlport_shared.so 0x41e407e8
11-12 08:46:00.669: D/AndroidmoduleModule(381): (main) [18,433] inside onAppCreate
11-12 08:46:00.669: D/dalvikvm(381): Trying to load lib /data/data/com.fw.test/lib/libAlibrary-jni.so 0x41e407e8
11-12 08:46:00.719: D/dalvikvm(381): Added shared lib /data/data/com.fw.test/lib/libstlport_shared.so 0x41e407e8
11-12 08:46:00.719: D/dalvikvm(381): No JNI_OnLoad found in /data/data/com.fw.test/lib/libstlport_shared.so 0x41e407e8, skipping init
11-12 08:46:00.719: D/dalvikvm(381): Trying to load lib /data/data/com.fw.test/lib/libkroll-v8.so 0x41e407e8
11-12 08:46:00.879: D/dalvikvm(381): Added shared lib /data/data/com.fw.test/lib/libkroll-v8.so 0x41e407e8
11-12 08:46:01.039: D/dalvikvm(381): Added shared lib /data/data/com.fw.test/lib/libAlibrary-jni.so 0x41e407e8
11-12 08:46:01.054: D/dalvikvm(381): No JNI_OnLoad found in /data/data/com.fw.test/lib/libgeniusscanlibrary-jni.so 0x41e407e8, skipping init
11-12 08:46:01.959: E/TiApplication(381): (KrollRuntimeThread) [345,345] Sending event: exception on thread: KrollRuntimeThread msg:java.lang.UnsatisfiedLinkError: Couldn't load com.tgl.androidmodule: findLibrary returned null; Titanium 3.1.3,2013/09/18 12:01,222f4d1
11-12 08:46:01.959: E/TiApplication(381): java.lang.UnsatisfiedLinkError: Couldn't load com.tgl.androidmodule: findLibrary returned null
11-12 08:46:01.959: E/TiApplication(381):     at java.lang.Runtime.loadLibrary(Runtime.java:365)
11-12 08:46:01.959: E/TiApplication(381):     at java.lang.System.loadLibrary(System.java:535)
11-12 08:46:01.959: E/TiApplication(381):     at org.appcelerator.kroll.runtime.v8.V8Runtime.loadExternalModules(V8Runtime.java:114)
11-12 08:46:01.959: E/TiApplication(381):     at org.appcelerator.kroll.runtime.v8.V8Runtime.initRuntime(V8Runtime.java:81)
11-12 08:46:01.959: E/TiApplication(381):     at org.appcelerator.kroll.KrollRuntime.doInit(KrollRuntime.java:175)
11-12 08:46:01.959: E/TiApplication(381):     at org.appcelerator.kroll.KrollRuntime$KrollRuntimeThread.run(KrollRuntime.java:109) 

Any suggestion?

Answer 1

Actually, this issue had nothing to do with my C++ lib, it was a pure Titanium problem. I understood thanks to this Jira issue that I only needed to install gperf to solve this issue. No need to say the error message was misleading. Thanks to Chris Stratton for his help.