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 /home/user5432/workspace/bitmapproj/obj/local/armeabi/objs-debug/mybitmap.o : In function Java_com_example_plasma_PlasmaView_renderPlasma
"undefined reference to AndroidBitmap_getInfo"
"undefined reference to AndroidBitmap_lockPixels"
"undefined reference to AndroidBitmap_unlockPixels"

ndk {
    ldLibs "log","android", "jnigraphics" // 引用依赖的 ndk 库 ldLibs = ["android", "jnigraphics", <other ndk libraries you might need>]
}

`LOCAL_LDFLAGS += -ljnigraphics`

Error:(31, 2) error: #error You must enable NEON instructions (e.g. -mfloat-abi=softfp -mfpu=neon) to use arm_neon.h

It would appear that at least as of Kitkat 4.4 (API 19), ARM devices are required to be at least ARMv7a:

MUST report, via android.os.Build.CPU_ABI, only one of the ABIs listed below
* armeabi-v7a
* x86
* mips
It's not altogether surprising that the API to follow 19 (Lollipop API 21) would drop support for ARMv5 completely. From what I've read, official builds of 4.4+ are always ARMv7a, but there are some custom builds for certain devices which run ARMv6.

So the fix is to target a lower API or target the armeabi-v7a architecture. Switching to v7a fixed this problem for me.

abiFilters "armeabi-v7a" , "x86", "mips" //"armeabi", "armeabi-v7a" , "x86"

C:\Users\yafei\AppDeveloperWorkspace\CoamAndroid\app\src\main\jni\audio.c
Error:(208, 9) error: 'for' loop initial declarations are only allowed in C99 or C11 mode
Information:(208, 9) use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
C:\Users\yafei\AppDeveloperWorkspace\CoamAndroid\app\src\main\jni\audio.c: In function 'Java_com_coam_ui_telegram_controller_TelegramMediaController_getWaveform2':
C:\Users\yafei\AppDeveloperWorkspace\CoamAndroid\app\src\main\jni\audio.c:692:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode

# Erlang
# export PATH=/opt/otp/bin:$PATH

PS1='\[\e[1;36m\]\d \[\e[1;32m\]\t \[\e[1;33m\]\u@\[\e[1;35m\]\h:\w\$\[\e[0;31m\] '

source .bashrc

$ PS1='\[\e[1;34m\][\d \t \u@\h \w]\$\[\e[m\] '
$ PS1='\[\e[1;36m\]\d \[\e[1;32m\]\t \[\e[1;33m\]\u@\[\e[1;35m\]\h:\w\$\[\e[0;31m\] '
$ PS1='\[\e[1;33m\]\u@\h \w ->\n\[\e[1;36m\] \@ \d\$\[\e[m\] '
$ PS1="[\[\e[0;32m\]\u@\h, load: `cat /proc/loadavg | awk '{ print $1; }'`\[\e[00m\]] (\[\e[00;35m\]\d - \t\[\e[00m\])\n\w \$ "
$ PS1="[\u@\h, load: `cat /proc/loadavg | awk '{ print $1; }'`] (\d - \t)\n\w \$ "
$ PS1="$HC$FYEL[ $FBLE${debian_chroot:+($debian_chroot)}\u$FYEL: $FBLE\w $FYEL]\\$ $RS"
$ PS2="$HC$FYEL> $RS"

# Terminate HighLight
#PS1='${debian_chroot:+($debian_chroot)}\[\033[01;35;40m\]\u\[\033[00;00;40m\]@\[\033[01;35;40m\]\h\[\033[00;31;40m\]:\[\033[00;00;40m\]\w \[\033[01;32;40m\]\$ \[\033[01;36;40m\]'
#PS1="$HC$FYEL[ $FBLE${debian_chroot:+($debian_chroot)}\u$FYEL: $FBLE\w $FYEL]\\$ $RS"
#PS2="$HC$FYEL> $RS"
#PS1='\[\e[1;33m\]\u@\h \w ->\n\[\e[1;36m\] \@ \d\$\[\e[m\] '
PS1='\[\e[1;36m\]\d \[\e[1;32m\]\t \[\e[1;33m\]\u@\[\e[1;35m\]\h:\w\$\[\e[0;37m\] '

PS1='\[\e[1;36m\]\d \[\e[1;32m\]\t \[\e[1;33m\]\u@\[\e[1;35m\]\h:\w\$\[\e[0;37m\] '

Fri Feb 26 11:55:20 yzhang@coam:~$

# Auto add env parameter $PROMPT_COMMAND when use non-Linux tty login by ssh.
# 让 putty 登陆的标题栏显示对应服务器 IP
if [ "$SSH_CONNECTION" != '' -a "$TERM" != 'linux' ]; then
    declare -a HOSTIP
    HOSTIP=`echo $SSH_CONNECTION |awk '{print $3}'`
    export PROMPT_COMMAND='echo -ne "\033]0;${USER}@$HOSTIP:[${HOSTNAME%%.*}]:${PWD/#$HOME/~} \007"'
fi

dir /x 

F:\BaiDuCloud\YS>dir /x
 Volume in drive F has no label.
 Volume Serial Number is 0000-4823

 Directory of F:\BaiDuCloud\YS

02/24/2016  12:10 PM    <DIR>                       .
02/24/2016  12:10 PM    <DIR>                       ..
02/24/2016  12:31 PM    <DIR>          COAMRU~1     CoamRunning
02/24/2016  12:08 PM       600,910,847 COAMRU~1.ZIP CoamRunning.zip
               1 File(s)    600,910,847 bytes
               3 Dir(s)  14,681,616,384 bytes free

del COAMRU~1.ZIP
RMDIR /S COAMRU~1