Pipfile requirements cannot be fulfilled (cause: djangocms-cascade)

[jhonvidal]

What happened?

full install cannot be fulfilled due to incompatibility of djangocms-cascade requirements

Steps to reproduce

https://dpaste.org/ReXu

[jhonvidal]

Any solution please 😔

[ay0000]

I'm having the same issue. If you just want to build/run the local demo you can use

pipenv install --sequential --skip-lock

It should still install the dependencies but you're pretty much stuck if you want to use the docker version.

[jhonvidal]

I understand, it is a forced solution, it gives a lot of uncertainty, does anyone know what is the incompatibility? Other solution?

[ay0000]

It's definitely not a good solution and doesn't work properly for docker setups. If you have a list of all of the requirements then you could modify the Cookiecutter to generate them yourself, but again, this is not ideal.

[ay0000]

I think I have a workaround now to get the runserver Docker going.

In the folder where your Cookiecutter is being downloaded (~/.cookiecutters for me) look for the cookiecutter-django-shop/hooks directory. There should be a file called post_gen_project.py

Replace the pipenv_to_requirements function with the following:

def pipenv_to_requirements():

    req=['Django>=2.1,<3.1',
         'django-shop==1.2.4',
         'django-allauth',
          'django-angular>=2.3',
          'django-filer',
          'django-ipware',
          'django-sass-processor',
          'django-select2',
          'django-filter',
          'django-parler',
          'django-parler-rest',
          'psycopg2-binary<2.8',
          'django-redis-cache',
          'django-redis-sessions',
          'schedule',
          'uWSGI',
          'djangorestframework',
          'django-rest-auth',
          'django-polymorphic>=2.1',
          'django-admin-sortable2',
          'django-fsm',
          'django-fsm-admin',
          'django-phonenumber-field',
          'django-post_office',
          'phonenumbers',
          'django-cms>=3.7.2',
          'djangocms-bootstrap',
          'djangocms-cascade>=1.3.1',
          'djangocms-text-ckeditor>=3.9.1',
          'libsass',
          'django-shop>=1.2.1',
          'django-elasticsearch-dsl',
          'elasticsearch-dsl>=7',
          'djangoshop-stripe>=1.2',
          'stripe<2',
          'djangoshop-paypal>=1.2',
          'paypalrestsdk<2',
          'djangoshop-sendcloud>=1.2',
          'django-treebeard==4.4'
          ]
      with open('requirements.txt', 'w') as fh:
          for line in req:
              fh.write("{}\n".format(line))

Run the Cookiecutter again but DO NOT redownload the files (first question in the process, just say no!). I haven't tested everything but it should work like normal again. Or at least until the dev team has a better idea of what's going on/way forward.

[jhonvidal]

And what does the development team say why it does not comment on it. Will there be any solid and stable improvements to start a store from now on?

[ay0000]

It seems from the other threads that they're at least aware of it. I'm sure they're trying their damndest to figure it out.

[jhonvidal]

I hope they solve it, I will be attentive, please let me know any news

[jrief]

OK. I'll have a look soon.
Everything used to work, but I didn't pin requirements to an upper version, so after Django's ecosystem evolved, things started to break. I'm currently buried in other feature requests.

[ay0000]

so after Django's ecosystem evolved, things started to break.

As is tradition.

[jhonvidal]

OK. I'll have a look soon.
Everything used to work, but I didn't pin requirements to an upper version, so after Django's ecosystem evolved, things started to break. I'm currently buried in other feature requests.

Thank you very much, I will be very attentive to the update solution

[alsolskjaer]

I think I have a workaround now to get the runserver Docker going.

In the folder where your Cookiecutter is being downloaded (~/.cookiecutters for me) look for the cookiecutter-django-shop/hooks directory. There should be a file called post_gen_project.py

Replace the pipenv_to_requirements function with the following:

def pipenv_to_requirements():

    req=['Django>=2.1,<3.1',
         'django-shop==1.2.4',
         'django-allauth',
          'django-angular>=2.3',
          'django-filer',
          'django-ipware',
          'django-sass-processor',
          'django-select2',
          'django-filter',
          'django-parler',
          'django-parler-rest',
          'psycopg2-binary<2.8',
          'django-redis-cache',
          'django-redis-sessions',
          'schedule',
          'uWSGI',
          'djangorestframework',
          'django-rest-auth',
          'django-polymorphic>=2.1',
          'django-admin-sortable2',
          'django-fsm',
          'django-fsm-admin',
          'django-phonenumber-field',
          'django-post_office',
          'phonenumbers',
          'django-cms>=3.7.2',
          'djangocms-bootstrap',
          'djangocms-cascade>=1.3.1',
          'djangocms-text-ckeditor>=3.9.1',
          'libsass',
          'django-shop>=1.2.1',
          'django-elasticsearch-dsl',
          'elasticsearch-dsl>=7',
          'djangoshop-stripe>=1.2',
          'stripe<2',
          'djangoshop-paypal>=1.2',
          'paypalrestsdk<2',
          'djangoshop-sendcloud>=1.2'
          ]
      with open('requirements.txt', 'w') as fh:
          for line in req:
              fh.write("{}\n".format(line))

Run the Cookiecutter again but DO NOT redownload the files (first question in the process, just say no!). I haven't tested everything but it should work like normal again. Or at least until the dev team has a better idea of what's going on/way forward.

Thank you very much I can bypass it now

[ay0000]

Thank you very much I can bypass it now

No worries. Make sure that you the list to include 'django-treebeard==4.4' as the latest version causes issues.

see here:
#44 (comment)

I've updated my original reply to include it now.

[hero4barca]

I am facing this same issue, I want to know what the dev teams response is

[greyhare]

The problem is that Django-shop runs on 3.0 at most and djangocms-cascade-2 needs Django 3.1 for some native JSON field support. So you need to add ,<2 to the djangocms-cascade line in Pipfile, and wherever else that dep shows up.

[Turmer]

Run the Cookiecutter again but DO NOT redownload the files (first question in the process, just say no!).

Unfortunately, Cookiecutter finishes with Error: "my-shop" directory already exists and there seem to be no changes.

[Turmer]

After creating project through cookiecutter with all default answers, manually edit Pipfile:

1. Replace the line djangocms-cascade = ">=1.3.1" with djangocms-cascade = ">=1.3.1,<2.0.0", per this suggestion
2. Add the line django-treebeard = "4.4", per this suggestion
   On Ubuntu 16.04 prior to running pipenv install one also needs to export CRYPTOGRAPHY_ALLOW_OPENSSL_102=1 and export ENV CRYPTOGRAPHY_DONT_BUILD_RUST=1.
   pipenv install is then able to lock and install. To avoid compilation errors, instead of npm install run

npm i [email protected] --save
npm i popper.js@^1.16.1 --save
npm install --no-optional

Then the remaining commands from tutorial get you functional page on localhost:8000.

[Turmer]

#41 (comment)
A bit less "invasive" way to build dockerized version is to clone the repo locally git clone https://github.com/awesto/cookiecutter-django-shop, navigate to cookiecutter-django-shop/{{cookiecutter.project_slug}} and manually edit Pipfile there:

1. Replace the line djangocms-cascade = ">=1.3.1" with djangocms-cascade = ">=1.3.1,<2.0.0", per this suggestion
2. Add the line django-treebeard = "4.4", per this suggestion
   Cooikecutter the project from local clone with corrected Pipfile: cookiecutter cookiecutter-django-shop. Answering 3 for uwsgi, use_compressor [n]: y and debug [y]: n builds the dockerized django-shop version, browse to http://<virtual host>:9009 for functional page.