I2S driver problem on Harmony 2.0b (Johnny0099)

I'm trying to use I2S driver on Harmony 2.0b on PIC32MZ EF but seems to not work. Here is the code: i2sHandle = DRV_I2S_Open(DRV_I2S_INDEX_0, DRV_IO_INTENT_READ|DRV_IO_INTENT_EXCLUSIVE);

if (i2sHandle == DRV_HANDLE_INVALID)
{
SYS_MES..