AudioFlinger无法加载audio.primary.xxx.so

自己添加audio.primary模块之后，logcat得到以下log，请问是什么原因造成的：

 E/AudioFlinger(  151): int android::load_audio_interface(const char*, audio_hw_device_t**) couldn't load audio hw module audio.primary (Invalid argument)
I/AudioFlinger(  151): loadHwModule() error -22 loading module primary 
W/AudioPolicyManagerBase(  151): could not open HW module primary
I/AudioFlinger(  151): loadHwModule() Loaded a2dp audio interface from A2DP Audio HW HAL (audio) handle 1
I/AudioFlinger(  151): loadHwModule() Loaded usb audio interface from USB audio HW HAL (audio) handle 2
I/AudioFlinger(  151): loadHwModule() Loaded r_submix audio interface from Wifi Display audio HAL (audio) handle 3

原因已找到，忽视了另一条log，
E/HAL ( 709): dlopen failed: could not load library "libauddev_priv_wrapper.so" needed by "audio.primary.rk30board.so"; caused by could not load library "libArrayProcessing_v1.so" needed by "libauddev_priv_wrapper.so"; caused by library "libArrayProcessing_v1.so" not found
缺少了另外一个库。