Howdy: Camera path is not configured correctly,

[sobuj53]

Hello,
I've installed Howdy on my Manjaro today. It was bit unconventional way as I couldn't used the AUR version (it was outdated). Anyway I used PKGBUILD from here https://github.com/boltgolt/howdy/blob/22891a1a1b5ffc8a6311199141a85fd3aa00df0d/archlinux/howdy/PKGBUILD. After adding missing dependency the installation worked, but now I can't use it. When I run sudo howdy test it gives me following error,

[ WARN:0] global /build/opencv/src/opencv-4.1.2/modules/videoio/src/cap_gstreamer.cpp (711) open OpenCV | GStreamer warning: Error opening bin: no element "none"
[ WARN:0] global /build/opencv/src/opencv-4.1.2/modules/videoio/src/cap_gstreamer.cpp (480) isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
[ERROR:0] global /build/opencv/src/opencv-4.1.2/modules/videoio/src/cap.cpp (116) open VIDEOIO(CV_IMAGES): raised OpenCV exception:

OpenCV(4.1.2) /build/opencv/src/opencv-4.1.2/modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): none in function 'icvExtractPattern'

Opening a window with a test feed

Press ctrl+C in this terminal to quit

Click on the image to enable or disable slow mode

QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'

Unknown camera, please check your 'device_path' config value.

Traceback (most recent call last):
File "/usr/bin/howdy", line 101, in
import cli.test
File "/usr/lib/security/howdy/cli/test.py", line 117, in
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
cv2.error: OpenCV(4.1.2) /build/opencv/src/opencv-4.1.2/modules/imgproc/src/color.cpp:182: error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

---

I've searched for similar issues already, and my issue has not been reported yet.

My media UID is: /dev/vedio0
My WebCam is: HP HD WebCam

Linux distribution (if applicable): Manjaro KDE based on Arch Linux

Howdy version: 2.5.1

I'd really appreciate you help on this. Thank you.

[boltgolt]

Did you edit the 'device_path' config value?

[sobuj53]

No, how do I do that?

[boltgolt]

Try running sudo howdy config

[sobuj53]

Hi,
Thank you for your replay.
config.txt
I've attached my howdy Config file. the device is set to none device_path = none, how do i identify my device path?. I'd really appreciate your feedback on this.

[boltgolt]

Checkout this part of the arch wiki article

[sobuj53]

Ok I just set my device_path = /dev/vedio0 and now it's working. Thanks. But really wish there is a easier way to install it in Manjaro. Thank you for everything

[boltgolt]

I'm trying to make it easier, see #262. Good to hear that it's fixed though!

[ajay139]

Yes it work for me too after changing the device path to /dev/video0
But I would like suggest to install v4l-utils before installing howdy so that we could identify the camera device path by performing v4l2-ctl --list-devices

[GarvTambi]

When I run this command after changing the config_path
I got this error:
Adding face model for the user garv
Enter a label for this new model [Initial model] (max 24 characters): Facelock
Camera path is not configured correctly, please edit the 'device_path' config value.
Exception ignored in: >
Traceback (most recent call last):
File "/lib/security/howdy/recorders/video_capture.py", line 55, in __del__
self.internal.release()
AttributeError: 'VideoCapture' object has no attribute 'internal'

Please Help me!!

[ajaykrishnansm]

When I run this command after changing the config_path
I got this error:
Adding face model for the user garv
Enter a label for this new model [Initial model] (max 24 characters): Facelock
Camera path is not configured correctly, please edit the 'device_path' config value.
Exception ignored in: >
Traceback (most recent call last):
File "/lib/security/howdy/recorders/video_capture.py", line 55, in del
self.internal.release()
AttributeError: 'VideoCapture' object has no attribute 'internal'

Please Help me!!

Have you correctly spelled the device path?
Make sure you spell correct device path to your preffered video device
You can check the correct device path by installing v4l-utils
And perform
v4l2-ctl -- list-devices

[GarvTambi]

When I run this command after changing the config_path
I got this error:
Adding face model for the user garv
Enter a label for this new model [Initial model] (max 24 characters): Facelock
Camera path is not configured correctly, please edit the 'device_path' config value.
Exception ignored in: >
Traceback (most recent call last):
File "/lib/security/howdy/recorders/video_capture.py", line 55, in del
self.internal.release()
AttributeError: 'VideoCapture' object has no attribute 'internal'
Please Help me!!

Have you correctly spelled the device path?
Make sure you spell correct device path to your preffered video device
You can check the correct device path by installing v4l-utils
And perform
v4l2-ctl -- list-devices

How I install v4l-utils

[ajaykrishnansm]

When I run this command after changing the config_path
I got this error:
Adding face model for the user garv
Enter a label for this new model [Initial model] (max 24 characters): Facelock
Camera path is not configured correctly, please edit the 'device_path' config value.
Exception ignored in: >
Traceback (most recent call last):
File "/lib/security/howdy/recorders/video_capture.py", line 55, in del
self.internal.release()
AttributeError: 'VideoCapture' object has no attribute 'internal'
Please Help me!!

Have you correctly spelled the device path?
Make sure you spell correct device path to your preffered video device
You can check the correct device path by installing v4l-utils
And perform
v4l2-ctl -- list-devices

How I install v4l-utils

sudo apt-get install v4l-utils

[GarvTambi]

(base) garv@garv-Inspiron-5567:~$ sudo apt-get install v4l-utils
Reading package lists... Done
Building dependency tree
Reading state information... Done
v4l-utils is already the newest version (1.14.2-1).
The following packages were automatically installed and are no longer required:
libegl1-mesa libfwup1
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 39 not upgraded.

Done!! Thanks a lot
Now what is the next step

[ajaykrishnansm]

(base) garv@garv-Inspiron-5567:~$ sudo apt-get install v4l-utils
Reading package lists... Done
Building dependency tree
Reading state information... Done
v4l-utils is already the newest version (1.14.2-1).
The following packages were automatically installed and are no longer required:
libegl1-mesa libfwup1
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 39 not upgraded.

Done!! Thanks a lot
Now what is the next step

v4l2-ctl -- list-devices

[GarvTambi]

(base) garv@garv-Inspiron-5567:~$ v4l2-ctl -- list-devices
unknown arguments: list-devices

General/Common options:
--all display all information available
-C, --get-ctrl=[,...]
get the value of the controls [VIDIOC_G_EXT_CTRLS]
-c, --set-ctrl==[,=...]
set the value of the controls [VIDIOC_S_EXT_CTRLS]
-D, --info show driver info [VIDIOC_QUERYCAP]
-d, --device= use device instead of /dev/video0
if starts with a digit, then /dev/video is used
-e, --out-device= use device for output streams instead of the
default device as set with --device
if starts with a digit, then /dev/video is used
-h, --help display this help message
--help-all all options
--help-io input/output options
--help-misc miscellaneous options
--help-overlay overlay format options
--help-sdr SDR format options
--help-selection crop/selection options
--help-stds standards and other video timings options
--help-streaming streaming options
--help-tuner tuner/modulator options
--help-vbi VBI format options
--help-vidcap video capture format options
--help-vidout vidout output format options
--help-edid edid handling options
-k, --concise be more concise if possible.
-l, --list-ctrls display all controls and their values [VIDIOC_QUERYCTRL]
-L, --list-ctrls-menus
display all controls and their menus [VIDIOC_QUERYMENU]
-r, --subset=[,,]+
the subset of the N-dimensional array to get/set for control ,
for every dimension an (, ) tuple is given.
-w, --wrapper use the libv4l2 wrapper library.
--list-devices list all v4l devices
--log-status log the board status in the kernel log [VIDIOC_LOG_STATUS]
--get-priority query the current access priority [VIDIOC_G_PRIORITY]
--set-priority=
set the new access priority [VIDIOC_S_PRIORITY]
is 1 (background), 2 (interactive) or 3 (record)
--silent only set the result code, do not print any messages
--sleep= sleep , call QUERYCAP and close the file handle
--verbose turn on verbose ioctl status reporting

I get this...Now what is the next step?

[GarvTambi]

I get this...Now what is the next step?

[ajaykrishnansm]

I get this...Now what is the next step?

v4l2-ctl --list-devices
Have you typed it correctly
If so,then it should be providing you with the video device path

[ajaykrishnansm]

I get this...Now what is the next step?

v4l2-ctl --list-devices
Have you typed it correctly
If so,then it should be providing you with the video device path

[ajaykrishnansm]

I get this...Now what is the next step?

v4l2-ctl --list-devices
Have you typed it correctly
If so,then it should be providing you with the video device path

Then perform
sudo howdy config

This is my selected device path:

Then save it.
Hope this will work for you.

[GarvTambi]

when I run sudo howdy cofig...I get this error:

(base) garv@garv-Inspiron-5567:~$ sudo howdy config
Traceback (most recent call last):
File "/lib/security/howdy/compare.py", line 17, in
import cv2
ModuleNotFoundError: No module named 'cv2'
Unknown error: 1
[sudo] password for garv:

[ajaykrishnansm]

Yess, I get this

(base) garv@garv-Inspiron-5567:~$ v4l2-ctl --list-devices
Integrated_Webcam_HD: Integrate (usb-0000:00:14.0-5):
/dev/video0
/dev/video1

Now what is the next step??

Perform
sudo howdy config

Find line start with
device_path
May be in your case
This will be
device_path = none
.
change to

device_path = /dev/video0

[ajaykrishnansm]

when I run sudo howdy cofig...I get this error:

(base) garv@garv-Inspiron-5567:~$ sudo howdy config
Traceback (most recent call last):
File "/lib/security/howdy/compare.py", line 17, in
import cv2
ModuleNotFoundError: No module named 'cv2'
Unknown error: 1
[sudo] password for garv:

Its prompting for your password
Give it and check

[ajaykrishnansm]

when I run sudo howdy cofig...I get this error:
(base) garv@garv-Inspiron-5567:~$ sudo howdy config
Traceback (most recent call last):
File "/lib/security/howdy/compare.py", line 17, in
import cv2
ModuleNotFoundError: No module named 'cv2'
Unknown error: 1
[sudo] password for garv:

Its prompting for your password
Give it and check

sudo howdy config

Give your password

Then find the line start with
device_path
Change the value
device_path = /dev/video0
Save it then check if it is working or not

[GarvTambi]

Yess Sir, I save it!! and it save successfully.

Now what is the next step??

when I run sudo howdy cofig...I get this error:
(base) garv@garv-Inspiron-5567:~$ sudo howdy config
Traceback (most recent call last):
File "/lib/security/howdy/compare.py", line 17, in
import cv2
ModuleNotFoundError: No module named 'cv2'
Unknown error: 1
[sudo] password for garv:

Its prompting for your password
Give it and check

sudo howdy config

Give your password

Then find the line start with
device_path
Change the value
device_path = /dev/video0
Save it then check if it is working or not

[ajaykrishnansm]

Yess Sir, I save it!! and it save successfully.

Now what is the next step??

when I run sudo howdy cofig...I get this error:
(base) garv@garv-Inspiron-5567:~$ sudo howdy config
Traceback (most recent call last):
File "/lib/security/howdy/compare.py", line 17, in
import cv2
ModuleNotFoundError: No module named 'cv2'
Unknown error: 1
[sudo] password for garv:

Its prompting for your password
Give it and check

sudo howdy config
Give your password
Then find the line start with
device_path
Change the value
device_path = /dev/video0
Save it then check if it is working or not

Try
sudo howdy add

[GarvTambi]

Sir Done!!

Adding face model for the user garv
Enter a label for this new model [Initial model] (max 24 characters): FaceLock

Please look straight into the camera
Scan complete

Added a new model to garv

Now What is the next step??

[GarvTambi]

Now What is the next step??

Now What is the next step??

[ajaykrishnansm]

Sir Done!!

Adding face model for the user garv
Enter a label for this new model [Initial model] (max 24 characters): FaceLock

Please look straight into the camera
Scan complete

Added a new model to garv

Now What is the next step??

That's it
you have added your face
And try reboot your system and check whether your front camera helps you to unlock your system

[GarvTambi]

Sir Unknown error is shown while testing

[ajaykrishnansm]

Sir Unknown error is shown while testing

Don't have an answer for this😁 , because I didn't face such issues
Have you correctly followed the installation instruction?
Try updating the system
Install
pip pip3
Or reinstalling howdy
https://youtu.be/3AG_RST6o1Y

[GarvTambi]

Sir Unknown error is shown while testing

Don't have an answer for this , because I didn't face such issues
Have you correctly followed the installation instruction?
Try updating the system
Install
pip pip3
Or reinstalling howdy
https://youtu.be/3AG_RST6o1Y

Sir, May I run this command again 'sudo howdy add'

[ajaykrishnansm]

Sir Unknown error is shown while testing

Don't have an answer for this , because I didn't face such issues
Have you correctly followed the installation instruction?
Try updating the system
Install
pip pip3
Or reinstalling howdy
https://youtu.be/3AG_RST6o1Y

Sir, May I run this command again 'sudo howdy add'

Yeah,you can try it

[GarvTambi]

sudo howdy add

I think this will happen because my camera quality is like this:

[GarvTambi]

sudo howdy add

I think this will happen because my camera quality is like this:

What you think about this??

[ajaykrishnansm]

sudo howdy add

I think this will happen because my camera quality is like this:

Not at all
It because something went wrong during the installation.

[GarvTambi]

So How I reinstall all these stuff??

[ajaykrishnansm]

So How I reinstall all these stuff??

sudo apt-get remove howdy
sudo apt-get purge howdy
then reinstall again by correctly following the instructions in
https://github.com/boltgolt/howdy

[ajaykrishnansm]

So How I reinstall all these stuff??

sudo apt-get remove howdy
sudo apt-get purge howdy
then reinstall again by correctly following the instructions in
https://github.com/boltgolt/howdy

Hope next time the problem will not occur

[GarvTambi]

So How I reinstall all these stuff??

sudo apt-get remove howdy
sudo apt-get purge howdy
then reinstall again by correctly following the instructions in
https://github.com/boltgolt/howdy

Hope next time the problem will not occur

Hopefully!!

[GarvTambi]

Getting this erro while running 'sudo apt install howdy' on terminal...

Traceback (most recent call last):
File "/var/lib/dpkg/info/howdy.postinst", line 159, in
tf.extract(item, "/tmp")
File "/usr/lib/python3.6/tarfile.py", line 2052, in extract
numeric_owner=numeric_owner)
File "/usr/lib/python3.6/tarfile.py", line 2122, in _extract_member
self.makefile(tarinfo, targetpath)
File "/usr/lib/python3.6/tarfile.py", line 2171, in makefile
copyfileobj(source, target, tarinfo.size, ReadError, bufsize)
File "/usr/lib/python3.6/tarfile.py", line 255, in copyfileobj
buf = src.read(remainder)
File "/usr/lib/python3.6/gzip.py", line 276, in read
return self._buffer.read(size)
File "/usr/lib/python3.6/_compression.py", line 68, in readinto
data = self.read(len(byte_view))
File "/usr/lib/python3.6/gzip.py", line 482, in read
raise EOFError("Compressed file ended before the "
EOFError: Compressed file ended before the end-of-stream marker was reached
dpkg: error processing package howdy (--configure):
installed howdy package post-installation script subprocess returned error exit status 1
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Errors were encountered while processing:
howdy
E: Sub-process /usr/bin/dpkg returned an error code (1)

[ajaykrishnansm]

Getting this erro while running 'sudo apt install howdy' on terminal...

Traceback (most recent call last):
File "/var/lib/dpkg/info/howdy.postinst", line 159, in
tf.extract(item, "/tmp")
File "/usr/lib/python3.6/tarfile.py", line 2052, in extract
numeric_owner=numeric_owner)
File "/usr/lib/python3.6/tarfile.py", line 2122, in _extract_member
self.makefile(tarinfo, targetpath)
File "/usr/lib/python3.6/tarfile.py", line 2171, in makefile
copyfileobj(source, target, tarinfo.size, ReadError, bufsize)
File "/usr/lib/python3.6/tarfile.py", line 255, in copyfileobj
buf = src.read(remainder)
File "/usr/lib/python3.6/gzip.py", line 276, in read
return self._buffer.read(size)
File "/usr/lib/python3.6/_compression.py", line 68, in readinto
data = self.read(len(byte_view))
File "/usr/lib/python3.6/gzip.py", line 482, in read
raise EOFError("Compressed file ended before the "
EOFError: Compressed file ended before the end-of-stream marker was reached
dpkg: error processing package howdy (--configure):
installed howdy package post-installation script subprocess returned error exit status 1
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
Errors were encountered while processing:
howdy
E: Sub-process /usr/bin/dpkg returned an error code (1)

try
sudo apt autoremove
sudo apt-get howdy

May be it will work

[GarvTambi]

In (f,b,s ) which one I choose

[ajaykrishnansm]

In (f,b,s ) which one I choose

S

[GarvTambi]

Sometimes face detect successfully and sometimes it shows Unknown Error:1 Why?
Please help!

[mefy-garv]

Is it possible to add multiple faces in a same system.

[phamthainb]

Ok I just set my device_path = /dev/vedio0 and now it's working. Thanks. But really wish there is a easier way to install it in Manjaro. Thank you for everything

device_path = /dev/video0 work for me.

[RedCoder09]

Hello, when I run sudo howdy add I get this:
No face model known
[sudo] password for redcoder09:
Sorry, try again.
No face model known
[sudo] password for redcoder09:
Adding face model for the user redcoder09
Enter a label for this new model [Initial model] (max 24 characters): me

Please look straight into the camera
Failed to read camera specified in your 'device_path', aborting

Any idea why?

P.S. My camera path is /dev/video0