perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
 LANGUAGE = (unset),
 LC_ALL = (unset),
 LC_CTYPE = "UTF-8",
 LANG = "en_GB.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("en_GB.UTF-8").

Fix locale

sudo locale-gen "en_US.UTF-8"
sudo dpkg-reconfigure locales

...
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'defaults.bluealsa.device'
...
#####################################
#       Client not connected!       #
#####################################
...
Failed to initialize SampleApplication
...
Failed to create to SampleApplication!

Solutions from Alsa lib conf issue #105

1. Not connected USB microphone

• Check out this guideline of follow the next brief instruction
• Check available recording devices

arecord -l

If the respond is as following – there is no recording devices available

**** List of CAPTURE Hardware Devices ****

• Connect a USB microphone or a USB headset to the Raspberry Pi and check again. Example of a connected UCS headset

**** List of CAPTURE Hardware Devices ****
card 1: LX3000 [Microsoft LifeChat LX-3000], device 0: USB Audio [USB Audio]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Set the USB audio device as default

• Try to record audio and play it back – the command records audio from the default recording device to the specified file during 10 seconds

arecord -d 10 test-mic.wav

• It might be an error related to not supported format

Recording WAVE 'test-mic.wav' : Unsigned 8 bit, Rate 8000 Hz, Mono
arecord: set_params:1299: Sample format non available
Available formats:
- S16_LE

• Specifying the format will lett make record – example

arecord -f S16_LE -d 10 test-mic.wav

However this may lead to the other issues. So follow the further steps to change the ~/.asoundrc

• Check available asound cards

  cat /proc/asound/cards

  

  Check which one is selected as current for playback and for capture. In this example: “ALSA” is a card #0, it is used for playback, “USB-Audio – Microsoft LifeChat LX-3000” is a card #1, it is used for capture. So the file ~/.asoundrc should be like following

pcm.!default {
  type asym
   playback.pcm {
     type plug
     slave.pcm "hw:0,0"
   }
   capture.pcm {
     type plug
     slave.pcm "hw:1,0"
   }
}

• If file has been created – check it, replaying it with the command

aplay test-mic.wav

• Note: changes of the default (or current) audio in the GUI will change this file ~/.asoundrc

2. Not licensed Sensory engine

Is the Sensory library you are using licensed? If not, there is a script in the Sensory project you downloaded from Github under bin/license.sh that you can use to license to the project. You may not may not have to re-link the Sensory library.

cd FOLDER-WHERE-ALEXARPI-HAS-BEEN-DOWNLOADED
./third-party/alexa-rpi/bin/license.sh