error while image conversion in Ubuntu using latest version of every dependencies with latest version of scp and qgis

[swtfmly06-ui]

2025-08-31T11:23:48 WARNING Traceback (most recent call last):
File "/home/rohit/.local/share/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/interface/image_conversion_tab.py", line 43, in input_image
populate_table(input_path=path)
File "/home/rohit/.local/share/QGIS/QGIS3/profiles/default/python/plugins/SemiAutomaticClassificationPlugin/interface/image_conversion_tab.py", line 75, in populate_table
cfg.rs.preprocess_products.create_product_table(
File "/home/rohit/.local/lib/python3.12/site-packages/remotior_sensus/tools/preprocess_products.py", line 1170, in create_product_table
product_table = tm.add_product_to_preprocess(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/rohit/.local/lib/python3.12/site-packages/remotior_sensus/core/table_manager.py", line 1071, in add_product_to_preprocess
np.array(
ValueError: setting an array element with a sequence. The requested array has an inhomogeneous shape after 1 dimensions. The detected shape was (15,) + inhomogeneous part.

[semiautomaticgit]

Hello @swtfmly06-ui ,
the issue could be related to input data.
To understand if there are plugin errors please enable "Records detailed events in a log file" and copy the log file as described here https://semiautomaticclassificationmanual.readthedocs.io/en/latest/faq.html#how-can-i-report-an-error

[swtfmly06-ui]

An error has occurred while executing Python code:

ZeroDivisionError: division by zero
Traceback (most recent call last):
File "/home/rohit/.local/share/QGIS/QGIS3/profiles/SCP Trial/python/plugins/SemiAutomaticClassificationPlugin/interface/image_conversion_tab.py", line 127, in perform_conversion
output = cfg.rs.preprocess_products.perform_preprocess(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/rohit/.local/lib/python3.12/site-packages/remotior_sensus/tools/preprocess_products.py", line 548, in perform_preprocess
cfg.multiprocess.run_separated(
File "/home/rohit/.local/lib/python3.12/site-packages/remotior_sensus/core/multiprocess_manager.py", line 501, in run_separated
p, cfg.temp, int(available_ram / n_processes),
~~~~~~~~~~~~~~^~~~~~~~~~~~~
ZeroDivisionError: division by zero

Python version: 3.12.3 (main, Aug 14 2025, 17:47:21) [GCC 13.3.0]
QGIS version: 3.34.4-Prizren Prizren, exported

Python Path:
/usr/share/qgis/python
/home/rohit/.local/share/QGIS/QGIS3/profiles/SCP Trial/python
/home/rohit/.local/share/QGIS/QGIS3/profiles/SCP Trial/python/plugins
/usr/share/qgis/python/plugins
/usr/lib/python312.zip
/usr/lib/python3.12
/usr/lib/python3.12/lib-dynload
/home/rohit/.local/lib/python3.12/site-packages
/usr/local/lib/python3.12/dist-packages
/usr/lib/python3/dist-packages
/home/rohit/.local/share/QGIS/QGIS3/profiles/SCP Trial/python

[swtfmly06-ui]

I am unable to get detailed log because after clicking run the scp windows is getting freezed.

[semiautomaticgit]

Hello @swtfmly06-ui

it seems an error related to installation or configuration of the plugin.
I suggest to delete the QGIS user directory (warning: this will delete all installed plugins and QGIS preferences so you may want to backup it first) in your case /home/rohit/.local/share/QGIS/QGIS3/profiles/SCP Trial, and try to reinstall the plugin again.

[swtfmly06-ui]

I have tried that but getting same error.

…

On Sat, 13 Sept, 2025, 18:33 Luca Congedo, ***@***.***> wrote: *semiautomaticgit* left a comment (semiautomaticgit/SemiAutomaticClassificationPlugin#405) <#405 (comment)> Hello @swtfmly06-ui <https://github.com/swtfmly06-ui> it seems an error related to installation or configuration of the plugin. I suggest to delete the QGIS user directory (warning: this will delete all installed plugins and QGIS preferences so you may want to backup it first) in your case /home/rohit/.local/share/QGIS/QGIS3/profiles/SCP Trial, and try to reinstall the plugin again. — Reply to this email directly, view it on GitHub <#405 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BWXMZKRWFOWSBDGEP3BD7R33SQIZHAVCNFSM6AAAAACFHWH762VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTEOBYGMZTAOBZGY> . You are receiving this because you were mentioned.Message ID: <semiautomaticgit/SemiAutomaticClassificationPlugin/issues/405/3288330896@ github.com>

[semiautomaticgit]

Can you please check what version of Remotior Sensus is installed by running the following command in QGIS Python console:
import remotior_sensus
remotior_sensus.__version__

[swtfmly06-ui]

import remotior_sensus
remotior_sensus.version
'0.5.2'

[swtfmly06-ui]

whenever i tried to run this process using 7.10 version is get processed but getting error by latest version

[swtfmly06-ui]

I tried both version of qgis i.e. LTR and latest, but getting the same.

[swtfmly06-ui]

I can give remote access to my pc if you wish to look at it. It will mean a lot to me, since i am using this for my graduation project and got stuck at this.

…

On Sat, Sep 13, 2025 at 6:40 PM Luca Congedo ***@***.***> wrote: *semiautomaticgit* left a comment (semiautomaticgit/SemiAutomaticClassificationPlugin#405) <#405 (comment)> Can you please check what version of Remotior Sensus is installed by running the following command in QGIS Python console: import remotior_sensus remotior_sensus.__version__ — Reply to this email directly, view it on GitHub <#405 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BWXMZKTG2KMW46X5BEBYFM33SQJT7AVCNFSM6AAAAACFHWH762VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTEOBYGM2DAMJWGI> . You are receiving this because you were mentioned.Message ID: <semiautomaticgit/SemiAutomaticClassificationPlugin/issues/405/3288340162@ github.com>

[swtfmly06-ui]

remotior sensus version 0.5.2 i have installed all the dependecies like pytorch scikit learn etc.

…

On Sat, Sep 13, 2025 at 6:49 PM Rohit Rao ***@***.***> wrote: I can give remote access to my pc if you wish to look at it. It will mean a lot to me, since i am using this for my graduation project and got stuck at this. On Sat, Sep 13, 2025 at 6:40 PM Luca Congedo ***@***.***> wrote: > *semiautomaticgit* left a comment > (semiautomaticgit/SemiAutomaticClassificationPlugin#405) > <#405 (comment)> > > Can you please check what version of Remotior Sensus is installed by > running the following command in QGIS Python console: > import remotior_sensus > remotior_sensus.__version__ > > — > Reply to this email directly, view it on GitHub > <#405 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/BWXMZKTG2KMW46X5BEBYFM33SQJT7AVCNFSM6AAAAACFHWH762VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTEOBYGM2DAMJWGI> > . > You are receiving this because you were mentioned.Message ID: > <semiautomaticgit/SemiAutomaticClassificationPlugin/issues/405/3288340162 > @github.com> >

[semiautomaticgit]

Unfortunately I can't reproduce the error.

The error message

p, cfg.temp, int(available_ram / n_processes),
ZeroDivisionError: division by zero

means that n_processes (the number of processed use by SCP) is 0, but this is a configuration parameter that is 2 by default.

Can you please check the tab Settings > Processing setting the value of CPU threads?
Also, you may try to uninstall the previous version 7

[swtfmly06-ui]

i have uninstalled previous version and installed everything to fresh, cpu threads are set to 2 and available ram to 8018, these were default settings

…

On Sat, Sep 13, 2025 at 6:54 PM Luca Congedo ***@***.***> wrote: *semiautomaticgit* left a comment (semiautomaticgit/SemiAutomaticClassificationPlugin#405) <#405 (comment)> Unfortunately I can't reproduce the error. The error message p, cfg.temp, int(available_ram / n_processes), ZeroDivisionError: division by zero means that n_processes (the number of processed use by SCP) is 0, but this is a configuration parameter that is 2 by default. Can you please check the tab Settings > Processing setting the value of CPU threads? Also, you may try to uninstall the previous version 7 — Reply to this email directly, view it on GitHub <#405 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BWXMZKX45OL2ZD3NHJ2UUDL3SQLJLAVCNFSM6AAAAACFHWH762VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTEOBYGM2TMOJQGQ> . You are receiving this because you were mentioned.Message ID: <semiautomaticgit/SemiAutomaticClassificationPlugin/issues/405/3288356904@ github.com>