# AssertionError: \ has no docstring **URL:** https://discuss.tryton.org/t/assertionerror-class-trytond-pool-stock-configuration-sequence-has-no-docstring/3137 **Category:** System Administrator **Tags:** stock **Created:** [August 18, 2020, 4:10pm UTC](https://discuss.tryton.org/t/assertionerror-class-trytond-pool-stock-configuration-sequence-has-no-docstring/3137 "2020-08-18T16:10:14Z") **Posts on this page:** 6 **Page:** 1
### Author: ![yoeldiomedez](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/yoeldiomedez/32/943_2.png) [@yoeldiomedez](https://discuss.tryton.org/u/yoeldiomedez) #### Post date: [August 18, 2020, 4:10pm UTC](https://discuss.tryton.org/t/assertionerror-class-trytond-pool-stock-configuration-sequence-has-no-docstring/3137/1 "2020-08-18T16:10:15Z")
Hello everyone, I’m trying to upgrade from 4.2 to 5.0, so I followed the migration steps: - [4.2 to 4.4](https://discuss.tryton.org/t/migration-from-4-2-to-4-4/264) - [4.4 to 4.6](https://discuss.tryton.org/t/migration-from-4-4-to-4-6/383) - [4.6 to 4.8](https://discuss.tryton.org/t/migration-from-4-6-to-4-8/440) - [4.8 to 5.0](https://discuss.tryton.org/t/migration-from-4-8-to-5-0/596) Then to upgrade the new series, I run the [command line](https://docs.tryton.org/projects/server/en/latest/topics/setup_database.html#update-a-database) (`trytond-admin -c -d --all`) and a dependency error happens: ``` (env) connecttix@ip-172-26-6-37:~/tryton$ ./trytond/bin/trytond-admin -c ./conf/trytond.conf -d connecttix_tryton --all Traceback (most recent call last): File "./trytond/bin/trytond-admin", line 21, in admin.run(options) File "/home/connecttix/tryton/trytond/trytond/admin.py", line 54, in run activatedeps=options.activatedeps) File "/home/connecttix/tryton/trytond/trytond/pool.py", line 160, in init lang=lang, activatedeps=activatedeps) File "/home/connecttix/tryton/trytond/trytond/modules/ __init__.py", line 418, in load_modules _load_modules(update) File "/home/connecttix/tryton/trytond/trytond/modules/ __init__.py", line 382, in _load_modules graph = create_graph(module_list) File "/home/connecttix/tryton/trytond/trytond/modules/ __init__.py", line 159, in create_graph raise MissingDependenciesException(list(missing)) trytond.exceptions.MissingDependenciesException: Missing dependencies: stock_package_shipping ``` So, to fix that error, I ran next command line: (`trytond-admin -c -d -u --activate-dependencies`), without any success: ``` (env) connecttix@ip-172-26-6-37:~/tryton$ ./trytond/bin/trytond-admin -c ./conf/trytond.conf -d connecttix_tryton -u stock_package_shipping --activate-dependencies Traceback (most recent call last): File "./trytond/bin/trytond-admin", line 21, in admin.run(options) File "/home/connecttix/tryton/trytond/trytond/admin.py", line 54, in run activatedeps=options.activatedeps) File "/home/connecttix/tryton/trytond/trytond/pool.py", line 160, in init lang=lang, activatedeps=activatedeps) File "/home/connecttix/tryton/trytond/trytond/modules/ __init__.py", line 418, in load_modules _load_modules(update) File "/home/connecttix/tryton/trytond/trytond/modules/ __init__.py", line 388, in _load_modules load_module_graph(graph, pool, update, lang) File "/home/connecttix/tryton/trytond/trytond/modules/ __init__.py", line 216, in load_module_graph cls. __register__ (module) File "/home/connecttix/tryton/trytond/trytond/modules/stock_package/stock.py", line 53, in __register__ super(ConfigurationSequence, cls). __register__ (module_name) File "/home/connecttix/tryton/trytond/trytond/modules/stock/configuration.py", line 165, in __register__ super(ConfigurationSequence, cls). __register__ (module_name) File "/home/connecttix/tryton/trytond/trytond/model/modelsql.py", line 201, in __register__ super(ModelSQL, cls). __register__ (module_name) File "/home/connecttix/tryton/trytond/trytond/model/model.py", line 119, in __register__ model_id = Model_.register(cls, module_name) File "/home/connecttix/tryton/trytond/trytond/ir/model.py", line 97, in register [[model. __name__ , model._get_name(), model. __doc__ , File "/home/connecttix/tryton/trytond/trytond/model/model.py", line 101, in _get_name assert cls. __doc__ , '%s has no docstring' % cls AssertionError: has no docstring ``` - Could anyone tell me what’s wrong? - What can I do to fix it? ---
### Author: ![formateli](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/formateli/32/579_2.png) [@formateli](https://discuss.tryton.org/u/formateli) #### Post date: [August 18, 2020, 4:48pm UTC](https://discuss.tryton.org/t/assertionerror-class-trytond-pool-stock-configuration-sequence-has-no-docstring/3137/2 "2020-08-18T16:48:19Z")
It seems like you are missing the stock\_package\_shipping module in your trytond/modules path. ---
### Author: ![yoeldiomedez](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/yoeldiomedez/32/943_2.png) [@yoeldiomedez](https://discuss.tryton.org/u/yoeldiomedez) #### Post date: [August 18, 2020, 5:05pm UTC](https://discuss.tryton.org/t/assertionerror-class-trytond-pool-stock-configuration-sequence-has-no-docstring/3137/3 "2020-08-18T17:05:18Z")
@formateli No, It is installed ![image](https://discuss-cdn.tryton.org/uploads/default/original/2X/2/28d45c36ab0b04a71efb1793bd4ca44abae39433.png) ---
### Author: ![formateli](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/formateli/32/579_2.png) [@formateli](https://discuss.tryton.org/u/formateli) #### Post date: [August 18, 2020, 5:33pm UTC](https://discuss.tryton.org/t/assertionerror-class-trytond-pool-stock-configuration-sequence-has-no-docstring/3137/4 "2020-08-18T17:33:44Z")
Have you updated the modules in each version upgrade? ---
### Author: ![pokoli](https://discuss-cdn.tryton.org/user_avatar/discuss.tryton.org/pokoli/32/22_2.png) [@pokoli](https://discuss.tryton.org/u/pokoli) #### Post date: [August 18, 2020, 6:04pm UTC](https://discuss.tryton.org/t/assertionerror-class-trytond-pool-stock-configuration-sequence-has-no-docstring/3137/5 "2020-08-18T18:04:28Z")
> [@yoeldiomedez](#): > > Could anyone tell me what’s wrong? There is a module that adds the ‘stock.configuration.sequence’ model which is missing the DocString. > [@yoeldiomedez](#): > > What can I do to fix it? You should set the docstring or remove the module (if you do not use it) that has declared this model. ---
### Author: ![system](https://discuss-cdn.tryton.org/uploads/default/original/1X/c6f8ec0a40525cdcd50058c734283450a4b3d38b.png) [@system](https://discuss.tryton.org/u/system) #### Post date: [September 17, 2020, 6:04pm UTC](https://discuss.tryton.org/t/assertionerror-class-trytond-pool-stock-configuration-sequence-has-no-docstring/3137/6 "2020-09-17T18:04:34Z")
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