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FastCV Sample app crashes
KingCobra
Join Date: 19 Feb 13
Posts: 11
Posted: Thu, 2013-04-11 18:00
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Hello, 

When I try to run the sample application fastcorner on my Nexus10 I get the splash screen but when I press the Start button it crashes with a pop-up "Unfortunately, FastCV Sample App has stopped. OK".

Any ideas?

 

Thanks!

 

In the LogCat I see the following:

 

04-11 17:46:13.559: E/AndroidRuntime(8610): FATAL EXCEPTION: main
04-11 17:46:13.559: E/AndroidRuntime(8610): java.lang.ExceptionInInitializerError
04-11 17:46:13.559: E/An droidRuntime(8610): at java.lang.Class.newInstanceImpl(Native Method)
04-11 17:46:13.559: E/AndroidRuntime(8610): at java.lang.Class.newInstance(Class.java:1319)
04-11 17:46:13.559: E/AndroidRuntime(8610): at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
04-11 17:46:13.559: E/AndroidRuntime(8610): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2096)
04-11 17:46:13.559: E/AndroidRuntime(8610): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2229)
04-11 17:46:13.559: E/AndroidRuntime(8610): at android.app.ActivityThread.access$600(ActivityThread.java:140)
04-11 17:46:13.559: E/AndroidRuntime(8610): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1233)
04-11 17:46:13.559: E/AndroidRuntime(8610): at android.os.Handler.dispatchMessage(Handler.java:99)
04-11 17:46:13.559: E/AndroidRuntime(8610): at android.os.Looper.loop(Looper.java:137)
04-11 17:46:13.559: E/AndroidRuntime(8610): at android.app.ActivityThread.main(ActivityThread.java:5019)
04-11 17:46:13.559: E/AndroidRuntime(8610): at java.lang.reflect.Method.invokeNative(Native Method)
04-11 17:46:13.559: E/AndroidRuntime(8610): at java.lang.reflect.Method.invoke(Method.java:511)
04-11 17:46:13.559: E/AndroidRuntime(8610): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-11 17:46:13.559: E/AndroidRuntime(8610): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-11 17:46:13.559: E/AndroidRuntime(8610): at dalvik.system.NativeStart.main(Native Method)
04-11 17:46:13.559: E/AndroidRuntime(8610): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load fastcvsample from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.qualcomm.fastcorner-1.apk,libraryPath=/data/app-lib/com.qualcomm.fastcorner-1]: findLibrary returned null
04-11 17:46:13.559: E/AndroidRuntime(8610): at java.lang.Runtime.loadLibrary(Runtime.java:365)
04-11 17:46:13.559: E/AndroidRuntime(8610): at java.lang.Syst em.loadLibrary(System.java:535)
04-11 17:46:13.559: E/AndroidRuntime(8610): at com.qualcomm.fastcorner.FastCVSample.<clinit>(FastCVSample.java:133)
04-11 17:46:13.559: E/AndroidRuntime(8610): ... 15 more
04-11 17:48:57.674: D/dalvikvm(8629): GC_FOR_ALLOC freed 60K, 1% free 8847K/8936K, paused 10ms, total 10ms
04-11 17:48:57.679: I/dalvikvm-heap(8629): Grow heap (frag case) to 10.127MB for 1536016-byte allocation
04-11 17:48:57.694: D/dalvikvm(8629): GC_FOR_ALLOC freed <1K, 1% free 10346K/10440K, paused 13ms, total 13ms
04-11 17:48:57.709: D/dalvikvm(8629): GC_CONCURRENT freed <1K, 1% free 10346K/10440K, paused 4ms+2ms, total 15ms
04-11 17:48:57.729: D/dalvikvm(8629): GC_FOR_ALLOC freed <1K, 1% free 10346K/10440K, paused 10ms, total 11ms
04-11 17:48:57.739: I/dalvikvm-heap(8629): Grow heap (frag case) to 15.986MB for 6144016-byte allocation
04-11 17:48:57.754: D/dalvikvm(8629): GC_FOR_ALLOC freed 0K, 1% free 16346K/16444K, paused 14ms, total 14ms
04-11 17:48:57.769: D/dalvikvm(8629): GC_CONCURRENT freed <1K, 1% free 16346K/16444K, paused 1ms+1ms, total 12ms
04-11 17:51:49.799: W/dalvikvm(8629): Exception Ljava/lang/UnsatisfiedLinkError; thrown while initializing Lcom/qualcomm/fastcorner/FastCVSample;
04-11 17:51:49.799: W/dalvikvm(8629): Class init failed in newInstance call (Lcom/qualcomm/fastcorner/FastCVSample;)
04-11 17:51:49.799: D/AndroidRuntime(8629): Shutting down VM
04-11 17:51:49.799: W/dalvikvm(8629): threadid=1: thread exiting with uncaught exception (group=0x4164b930)
04-11 17:51:49.809: E/AndroidRuntime(8629): FATAL EXCEPTION: main
04-11 17:51:49.809: E/AndroidRuntime(8629): java.lang.ExceptionInInitializerError
04-11 17:51:49.809: E/AndroidRuntime(8629): at java.lang.Class.newInstanceImpl(Native Method)
04-11 17:51:49.809: E/AndroidRuntime(8629): at java.lang.Class.newInstance(Class.java:1319) 
04-11 17:51:49.809: E/AndroidRuntime(8629): at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
04-11 17:51:49.809: E/AndroidRuntime(8629): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2096)
04-11 17:51:49.809: E/AndroidRuntime(8629): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2229)
04-11 17:51:49.809: E/AndroidRuntime(8629): at android.app.ActivityThread.access$600(ActivityThread.java:140)
04-11 17:51:49.809: E/AndroidRuntime(8629): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1233)
04-11 17:51:49.809: E/AndroidRuntime(8629): at android.os.Handler.dispatchMessage(Handler.java:99)
04-11 17:51:49.809: E/AndroidRuntime(8629): at android.os.Looper.loop(Looper.java:137)
04-11 17:51:49.809: E/AndroidRuntime(8629): at android.app.ActivityThread.main(ActivityThread.java:5019)
04-11 17:51:49.809: E/AndroidRuntime(8629): at java.lang.reflect.Method.invokeNative(Native Method)
04-11 17:51:49.809: E/AndroidRuntime(8629): at java.lang.reflect.Method.invoke(Method.java:511)
04-11 17:51:49.809: E/AndroidRuntime(8629): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-11 17:51:49.809: E/AndroidRuntime(8629): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-11 17:51:49.809: E/AndroidRuntime(8629): at dalvik.system.NativeStart.main(Native Method)
04-11 17:51:49.809: E/AndroidRuntime(8629): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load fastcvsample from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.qualcomm.fastcorner-1.apk,libraryPath=/data/app-lib/com.qualcomm.fastcorner-1]: findLibrary returned null
04-11 17:51:49.809: E/AndroidRuntime(8629): at java.lang.Runtime.loadLibrary(Runtime.java:365)
04-11 17:51:49.809: E/AndroidRuntime(8629): at java.lang.System.loadLibrary(System.java:535)
04-11 17:51:49.809: E/AndroidRuntime(8629): at com.qualcomm.fastcorner.FastCVSample.<clinit>(FastCVSample.java:133)
04-11 17:51:49.809: E/AndroidRuntime(8629): ... 15 more
 
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Re: FastCV Sample app crashes
ronaldk
Join Date: 9 Oct 12
Posts: 30
Posted: Thu, 2013-04-11 22:35
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04-11 17:46:13.559: E/AndroidRuntime(8610): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load fastcvsample from loader dalvik.system.PathClassLoader[dexPath=/data/app/com.qualcomm.fastcorner-1.apk,libraryPath=/data/app-lib/com.qualcomm.fastcorner-1]: findLibrary returned null

 

04-11 17:46:13.559: E/AndroidRuntime(8610): at java.lang.Runtime.loadLibrary(Runtime.java:365)
04-11 17:46:13.559: E/AndroidRuntime(8610): at java.lang.Syst em.loadLibrary(System.java:535)
04-11 17:46:13.559: E/AndroidRuntime(8610): at com.qualcomm.fastcorner.FastCVSample.<clinit>(FastCVSample.java:133)
 
From the logs above, your apps can not load the native library (libfastcvsample.so) that is compiled or built from jni directory.
It seems that eclipse is failed to compiled and build the jni directory.  
 
To build native library, you can compile using eclipse thru CDT or using "ndk-build" command
To compile using eclipse thru CDT, please make sure you follow below instrution
  1. 1.  https://developer.qualcomm.com/mobile-development/mobile-technologies/computer-vision-fastcv/setting-developer-environment
     subsection: Android NDK and C/C++ Development Toolkit (CDT)
 
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Re: FastCV Sample app crashes
KingCobra
Join Date: 19 Feb 13
Posts: 11
Posted: Mon, 2013-04-15 11:35
Top

Thanks ronaldk for the pointers. They were helpful and I was able to make some progress but I am stuck with a build error which I can not understand.

First, I had issue with the environment variable ANDROID_NDK_ROOT setting as seen by the project Makefile. I have it set in my .bashrc but Makefile doesn't seem to get it. So, I hardcoded it just to get past that issue.

Now I get the following error with Build All:

**** Build of configuration Default for project SplashScreen ****

make all
Host OS was auto-detected: linux
Invalid attribute name:
      android:versioncode
make[1]: Entering directory `<my home dir>/AndroidDev/fastcv-android-1-2-0/samples/fastcorner'
<my home dir>/AndroidDev/android-ndk-r8d/build/gmsl/__gmsl:512: *** non-numeric second argument to `wordlist' function: ''.  Stop.
make[1]: Leaving directory `<my home dir>/AndroidDev/fastcv-android-1-2-0/samples/fastcorner'
make: *** [all] Error 2

**** Build Finished ****

Line 512 in my __gmsl looks like this:

int_encode = $(__gmsl_tr1)$(wordlist 1,$1,$(__gmsl_input_int))

Thanks for any help.

 

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Re: FastCV Sample app crashes
ronaldk
Join Date: 9 Oct 12
Posts: 30
Posted: Mon, 2013-04-15 12:23
Top

So you are using Linux to develop.

For eclipse to be able to get your path, you can do the following.

1. At your ~/.bashrc, you can set

export PATH=$PATH:<your path to android ndk>

export ANDROID_NDK_ROOT=<your path to android ndk>

alias eclipse='<your path to eclipse>/eclipse'

2. At your terminal

#bash

#eclipse

3. Build clean and build project.

 

 

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Re: FastCV Sample app crashes
romain.cochet
Join Date: 26 Jun 13
Posts: 1
Posted: Thu, 2013-06-27 07:06
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Hi,

I have the same problem and try to add NDK in my path but I still have the error ...

I don't know what to do please help !

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