fmbttizen.TizenConnectionError: Connecting to a Tizen device/emulator

[erbett]

Hello, Antti.

I'm facing the same issue related in #23. However, I can't find a solution. The error message displayed in fmbt-scripter is:
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python2.7/dist-packages/fmbttizen.py", line 179, in init
pythonCommand=pythonCommand)
File "/usr/lib/python2.7/dist-packages/fmbttizen.py", line 591, in init
self.open()
File "/usr/lib/python2.7/dist-packages/fmbttizen.py", line 667, in open
raise TizenConnectionError('Connecting to a Tizen device/emulator with "sdb -s %s shell" failed.' % (self._serialNumber,))
fmbttizen.TizenConnectionError: Connecting to a Tizen device/emulator with "sdb -s emulator-26101 shell" failed.

My results:
$which sdb:
/home/tizen/tizen-sdk/tools/sdb

$ sdb version
Smart Development Bridge version 2.2.48

$python -c 'import fmbttizen; print fmbttizen.Device(pythonCommand="/opt/python/bin/python")'
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python2.7/dist-packages/fmbttizen.py", line 179, in init
pythonCommand=pythonCommand)
File "/usr/lib/python2.7/dist-packages/fmbttizen.py", line 591, in init
self.open()
File "/usr/lib/python2.7/dist-packages/fmbttizen.py", line 667, in open
raise TizenConnectionError('Connecting to a Tizen device/emulator with "sdb -s %s shell" failed.' % (self._serialNumber,))
fmbttizen.TizenConnectionError: Connecting to a Tizen device/emulator with "sdb -s emulator-26101 shell" failed.

$sdb -s emulator-26101 shell
->shell opens successfully

$python -c 'print "hello"'
hello

$/opt/python/bin/python -c 'print "hello"'
bash: /opt/python/bin/python: File or directory not found

$/usr/bin/python -c 'print "hello"'
hello

$python
Python 2.7.6 (default, Mar 22 2014, 22:59:56)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.

import os
os.getenv("PATH")
'/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib:/home/tizen/tizen-sdk/tools'

$echo $PATH
$/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib:/home/tizen/tizen-sdk/tools

Please, can you help me?

[askervin]

The fmbttizen library tries to execute pythonCommand on the emulator / device. If neither of the following launches Python, the problem is that it is not installed on the emulator:

sdb shell python
sdb shell /opt/python/bin/python

Please see issue #18 to find Python RPMs.

[erbett]

Thank you for your prompt reply.

I installed (on emulator) the files bellow:
libpython-2.7.1-1.4.i586.rpm
python-base-2.7.1-1.4.i586.rpm

The results:
$sdb shell python
Python 2.7.1 (r271:86832, Jul 10 2013, 10:38:32) [GCC] on linux3
Type "help", "copyright", "credits" or "license" for more information.

sdb shell /opt/python/bin/python
-l: /opt/python/bin/python: No such file or directory

For some reason, Python isn't being installed in /opt/python/bin

I'm not sure if it is the correct procedure. Unfortunately, the error message persists:
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python2.7/dist-packages/fmbttizen.py", line 179, in init
pythonCommand=pythonCommand)
File "/usr/lib/python2.7/dist-packages/fmbttizen.py", line 591, in init
self.open()
File "/usr/lib/python2.7/dist-packages/fmbttizen.py", line 667, in open
raise TizenConnectionError('Connecting to a Tizen device/emulator with "sdb -s %s shell" failed.' % (self._serialNumber,))
fmbttizen.TizenConnectionError: Connecting to a Tizen device/emulator with "sdb -s emulator-26101 shell" failed.

[askervin]

Ok, in that case you can drop pythonCommand in the test script, that is, use plain d=fmbttizen.Device(). In my opinion, this would be the correct thing to do, because the only thing this assumes about Python (on the emulator/device) is that it is in PATH. Unfortunately, it turned out at some point, that it is possible to install Python RPMs without python ending up to PATH. Therefore I added pythonCommand to allow launching it from any directory path.

If you need to write code that has to work with both typical Python and "/opt/python/bin/python", I would suggest using

import fmbttizen
try:
    d = fmbttizen.Device()
except fmbttizen.TizenConnectionError:
    d = fmbttizen.Device(pythonCommand="/opt/python/bin/python")

[erbett]

I'm beginning to suspect that the problem can be with my environment configuration (running Tizen 2.3b in a virtual machine with Ubuntu 14.04).

The issue #18 refers to version 2.2. However, I could install those RPMs in new emulator.

Is it a problem of the new version of Tizen? Please, can you recommend me a stable configuration (environment)?

The project fMBT is very interesting and I'd like to test it.

[askervin]

I installed Tizen 2.3b to Ubuntu 14.04 that runs on a virtual machine. I installed libpython and python-base RPMs from Tizen 2.2 repos. And I'm able to reproduce the issue.

The root cause seems to be that emulator:/tmp/fmbttizen-agent.py cannot connect to the X server (on emulator) when running as a "developer". Try whoami. However, if fmbttizen-agent.py is executed as root, X server accepts the connection.

As a quick solution, I would suggest running sdb root on on the host. After that fmbttizen-agent.py will be executed as root. I got python -c "import fmbttizen; fmbttizen.Device()" working, and fmbt-scripter gives screenshot from the Tizen emulator as expected.

I will see if I could make the root cause of the error visible to the user.

[askervin]

Error messages are now more informative. I also noticed that input devices on Tizen 2.3b emulator differ from those on earlier Tizen emulators. So a patch was needed to get pressBack(), pressHome(), pressMenu(), pressVolumeUp(), pressVolumeDown() working. The patch is now in fMBT devel branch.

Please use fMBT from github devel branch or fMBT packages for Ubuntu from my PPA repo in order to test Tizen 2.3b.

[erbett]

Yes!!! I followed your instructions and everything is working now.

Thank for your help and patience, Attin. I hope you continue to maintain this excellent work.

[askervin]

Glad to hear that, @ehro. Thanks for your contribution to the project! Closing the issue.

[amazpyel]

I'm glad to hear about support of Tizen 2.3!

[Rosi061]

Hi @ehro,
How you installed the rpm files on Tizen.
Every time i try to install rpm files on Tizen device, i got an error message just same as
https://bugs.tizen.org/jira/browse/TC-321

[erbett]

@Rosi061, my installation was Ubuntu-based. I just followed the instructions described on Tizen website.

Are you using another distro?

[amazpyel]

my installation was Ubuntu-based. I just followed the instructions described on Tizen website.

@ehro Could you provide a link, please?

[askervin]

@Rosi061, you should be able to install Python rpms by running rpm -i *.rpm as root on the device/emulator.

[erbett]

Sorry, @Rosi061 and @amazpyel, I made a mistake in my answer. @askervin is correct.

On device/emulator, type "su" to grant root access. Then, install libpython-2.7.1-1.4.i586.rpm and python-base-2.7.1-1.4.i586.rpm. The answer above shows how.

[Rosi061]

Dear Askervin,
After i enter "rpm -i libpython-2.7.1-1.6.armv7l.rpm", i got the following message
"installing package libpython-2.7.1-1.6.armv7l needs 2MB on the / filesystem"
Can you help me with this?

Thank you.

[madhav-pai]

Hi,

Please try this

"sdb root on"
"sdb shell"
"change-booting-mode.sh --update"

and let me know if it works for you

Thanks

[Rosi061]

Hi Madhav,
Thanks ... Thank you so very much.
It solves the problem.

[yuvraj12]

Hi Madhav,

Thanks a lot.
It worked for me as also