GPIO Header and List Blank

[steven6282]

I just submitted an error a little bit ago about an error while installing which I fixed by changing a assumed typo. But I'm having another problem post install and don't know what is causing it.

When I run the webiopi with webiopi -d -c /etc/webiopi/config, and then go to the server:8000, it loads the web page. But then when I go to GPIO Header, or GPIO List the pages are completely blank.

I found this fork of webiopi when I was researching a problem with the original webiopi not working on my rpi3. I found a thread talking about the cpu revision so I don't know if that has something to do with it or not. I don't see revisions specified in cpuinfo.c like they did and modified to fix their problem. But just in case it matters cat /proc/cpuinfo shows my revision as a02082

[thortex]

Raspberry Pi 3 Model B (Q1 2016) rev. a0282 is supported on YA-WebIOPi+.

Root privilege is not needed for the official WebIOPi, but root privilege is required to execute Yet Another WebIOPi+. So, Could you execute YA-WebIOPi+ with sudo? $ sudo webiopi -d -c /etc/webiopi/config -l /var/log/webiopi

Or, did you run dpkg command to install YA-WebIOPi+? Please refer to https://github.com/thortex/rpi3-webiopi/wiki/HowToBuild for installation information.

[Guru-98]

Same error here...

A little debugging showed me an error at webiopi.js

Uncaught TypeError: Cannot set property 'mapped' of undefined @ webiopi,js:222

PS: in an other board it is working properly.. o.O

[thortex]

Could you send me console logs by typing the following commands? $ ps aux | grep webiopi | grep -v grep $ egrep -v ' (DEBUG|INFO) ' /var/log/webiopi | tail -100 $ lsb_release -a $ cat /proc/cpuinfo | egrep '(Hardware|Revision)' $ find /usr/share/webiopi/htdocs/ | wc -l $ uname -a $ grep -v '^#' /etc/webiopi/config | grep -v '^$' $ ls -lh which python $ dpkg -l | egrep '(webiopi|setuptools|on-dev|on3-dev|gpio)' $ sudo webiopi -d -l /var/log/webiopi -c /etc/webiopi/config $ curl -u webiopi:raspberry http://localhost:8000/ $ curl -u webiopi:raspberry http://localhost:8000/app/gpio-header $ curl -u webiopi:raspberry http://localhost:8000/map $ curl -u webiopi:raspberry http://localhost:8000/version $ curl -u webiopi:raspberry 'http://localhost:8000/GPIO/*'

[thortex]

I've added syslog debugging log outputs to native C source files: https://github.com/thortex/rpi3-webiopi/commit/98c847dae5dc7b695ffa4293a8d093d196f66fc1

If you can use the above latest master branch, in addition, could you execute the following commands finally? $ sudo grep python /var/log/syslog

[Guru-98]

Open the log using cat command... if you use gedit its going to be a bit crappy :grimacing:

Log from the new commit

Oct 30 12:32:24 devpi1 python3[364]: 2016-10-30 12:32:24 - WebIOPi - INFO - Starting WebIOPi/0.7.1/Python3.4
Oct 30 12:32:24 devpi1 python3[364]: 2016-10-30 12:32:24 - WebIOPi - INFO - GPIO - Native mapped to REST API /GPIO
Oct 30 12:32:24 devpi1 python3[364]: 2016-10-30 12:32:24 - WebIOPi - INFO - Loading configuration from /etc/webiopi/config
Oct 30 12:32:24 devpi1 python3[364]: 2016-10-30 12:32:24 - WebIOPi - INFO - Access protected using /etc/webiopi/passwd
Oct 30 12:32:24 devpi1 python3[364]: 2016-10-30 12:32:24 - WebIOPi - INFO - HTTP Server binded on http://localhost:8000/
Oct 30 12:32:24 devpi1 python3[364]: 2016-10-30 12:32:24 - WebIOPi - INFO - CoAP Server binded on coap://localhost:5683/
Oct 30 12:32:24 devpi1 python3[364]: 2016-10-30 12:32:24 - WebIOPi - ERROR - [Errno 19] No such device
Oct 30 12:32:24 devpi1 python3[364]: Traceback (most recent call last):
Oct 30 12:32:24 devpi1 python3[364]: File "/usr/local/lib/python3.4/dist-packages/WebIOPi-0.7.1-py3.4-linux-armv7l.egg/webiopi/__main__.py", line 75, in <module>
Oct 30 12:32:24 devpi1 python3[364]: main(sys.argv)
Oct 30 12:32:24 devpi1 python3[364]: File "/usr/local/lib/python3.4/dist-packages/WebIOPi-0.7.1-py3.4-linux-armv7l.egg/webiopi/__main__.py", line 69, in main
Oct 30 12:32:24 devpi1 python3[364]: server = Server(port=port, configfile=configfile, scriptfile=scriptfile)
Oct 30 12:32:24 devpi1 python3[364]: File "/usr/local/lib/python3.4/dist-packages/WebIOPi-0.7.1-py3.4-linux-armv7l.egg/webiopi/server/__init__.py", line 130, in __init__
Oct 30 12:32:24 devpi1 python3[364]: self.coap_server.enableMulticast()
Oct 30 12:32:24 devpi1 python3[364]: File "/usr/local/lib/python3.4/dist-packages/WebIOPi-0.7.1-py3.4-linux-armv7l.egg/webiopi/protocols/coap.py", line 477, in enableMulticast
Oct 30 12:32:24 devpi1 python3[364]: self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
Oct 30 12:32:24 devpi1 python3[364]: OSError: [Errno 19] No such device
Oct 30 16:28:33 devpi1 python3[23230]: 2016-10-30 16:28:33 - WebIOPi - INFO - Starting WebIOPi/0.7.1/Python3.4
Oct 30 16:28:33 devpi1 python3[23230]: 2016-10-30 16:28:33 - WebIOPi - INFO - GPIO - Native mapped to REST API /GPIO
Oct 30 16:28:33 devpi1 python3[23230]: 2016-10-30 16:28:33 - WebIOPi - INFO - Loading configuration from /etc/webiopi/config
Oct 30 16:28:33 devpi1 python3[23230]: 2016-10-30 16:28:33 - WebIOPi - INFO - Access protected using /etc/webiopi/passwd
Oct 30 16:28:33 devpi1 python3[23230]: 2016-10-30 16:28:33 - WebIOPi - INFO - HTTP Server binded on http://172.17.21.205:8000/
Oct 30 16:28:33 devpi1 python3[23230]: 2016-10-30 16:28:33 - WebIOPi - INFO - CoAP Server binded on coap://172.17.21.205:5683/
Oct 30 16:28:33 devpi1 python3[23230]: 2016-10-30 16:28:33 - WebIOPi - INFO - CoAP Server binded on coap://224.0.1.123:5683/ (MULTICAST)

Edit:

In case you were searching:

ls -lh `which python`
lrwxrwxrwx 1 root root 9 Mar 28  2015 /usr/bin/python -> python2.7

But I don't think that's a problem used webiopi-select-python 3.4

[thortex]

hmm.

1. Kill all WebIOPi daemons before starting a new process instance by using systemctl, /etc/init.d/webiopi, or kill command. Yet Another WebIOPi+ Debian package automatically installs systemd script for jessie, or /etc/init.d script to daemonize WebIOPi process.
2. change your WebIOPi HTTP port number in /etc/webiopi/config, if another process is already using tcp port 8000.
3. Downgrade/Upgrade your Kernel by rpi-update.
4. Disabling COAP by editing /etc/webiopi/config.
5. Change your web browser instead of a preferred one, WebIOPi seems to be working normally.

[Guru-98]

Done every thing you said... The problem persists

Getting the revision from the server gives me the wrong revision

$ curl -u webiopi:raspberry http://localhost:8000/revision
2

and so wrong mapping too...

$ curl -u webiopi:raspberry http://localhost:8000/map
["V33", "V50", 2, "V50", 3, "GND", 4, 14, "GND", 15, 17, 18, 27, "GND", 22, 23, "V33", 24, 10, "GND", 9, 25, 11, 8, "GND", 7]

but running the python file version.py in webiopi.utils separately gave me BOARD_REVISION as 3... :confused: :roll_eyes:

Edit

Found the reason for blank page, @steven6282 please check this to see whether my assertion is right

After loading the page in Chrome or Firefox, by opening developer tools/console, we can see this error Uncaught TypeError: Cannot set property 'mapped' of undefined @ webiopi.js:222

This is due to the request /map responds with an array of 26 elements,

i.e., ["V33", "V50", 2, "V50", 3, "GND", 4, 14, "GND", 15, 17, 18, 27, "GND", 22, 23, "V33", 24, 10, "GND", 9, 25, 11, 8, "GND", 7]

But the script expects 51 elements, i.e., ["V33", "V50", 2, "V50", 3, "GND", 4, 14, "GND", 15, 17, 18, 27, "GND", 22, 23, "V33", 24, 10, "GND", 9, 25, 11, 8, "GND", 7, "DNC", "DNC", 5, "GND", 6, 12, 13, "GND", 19, 16, 26, 20, "GND", 21]

This error is mainly due to the wrong BOARD_REVISION assignment in webiopi.utils.version :male_detective:

Working to find the reason for this happening and hoping to find a solution :grimacing:

[thortex]

Jesus!

I realized that. Your information was useful for me, thanks a lot.

I committed the modified python code to: https://github.com/thortex/rpi3-webiopi/commit/ab221ff118ef6cb838f1212d8ba5e41978601fd7

I've tested with RPi1(BCM2708/000d) and RPi3(BCM2709/a02082).

Please check ab221ff out.

[Guru-98]

Happy to help....

[thortex]

Hi, steven6282 .

I've committed modified source code for the issue #33 into ab221ff.

In case of Guru's RPi board, the problem was solved. How about you?

[Guru-98]

I hate to say this, but the problem still persists... :disappointed: I used your syslog function to view the BOARD_REVISION directly from the native gpio library gpio.c but when curl-ing the module returns revision as 2... :confused:

[thortex]

I made a diagnostic command and committed to. Could you send a result of the following commands: curl https://raw.githubusercontent.com/thortex/rpi3-webiopi/master/webiopi_0.7.1/python/native/webiopi-diag > webiopi-diag chmod +x webiopi-diag ./webiopi-diag

[thortex]

Sorry, I renamed the file name: webiopi-diag to webiopi-info; https://github.com/thortex/rpi3-webiopi/blob/master/webiopi_0.7.1/python/native/webiopi-info

[jcarty]

Will this be fixed soon? @thortex Seeing the same

[thortex]

In case of my environments (both RPi1b and RPi3b), I can't face the problem.

Furyher information will be useful for me (e.g., screenshots, the kernel version, the board revision, official WebIOPi existence, w/ or w/o PIXEL, Python module installation status, debug mode logs, wireshark/tcpdump packet capture logs, et al.).

[thortex]

Note that remove either the official WebIOPi or the yet another WebIOPi python codes/modules/eggs from your system before installing the latest Yet Another WebIOPi+ debian package. You can install either the official WebIOPi or YA-WebIOPi+.

python3-webiopi package only includes a native c library and python module scripts without htdocs, init, systemd, and etc. Even if you only use python3, you have to install python2-webiopi debian package to work proper.

[nealre]

Thortex I tried your rpi3-webiopi "how to build your own..... and now the gpio display comes up but we are back to the pins not being numbered, both gpio screens. Rick

[PatSherbrooke]

Does anyone has the blank page on IP:8000 on the Ubuntu Mate 16.04.2 environment ? It's my case and I don't know how to fix it... I'm stucked in my project due to this error. I cannot switch to Raspbian for other reasons... If someone have some clues...it would be great !!! Thanks in advance for your answers...