### Author:  [@edbo](https://discuss.tryton.org/u/edbo)
#### Post date: [September 10, 2021, 1:24pm UTC](https://discuss.tryton.org/t/unable-to-init-server-could-not-connect-connection-refused/4609/21 "2021-09-10T13:24:09Z")
> [@Caroline](#):
>
> But this is my old version 5.0 , previously it works normally
I see, I think you have to downgrade or upgrade the `csb43` package with
`pip install --upgrade csb43==`
You can look at the history at [csb43 · PyPI](https://pypi.org/project/csb43/#history) , choose a version and try again. That’s the nice thing of `pip` 😄
> [@Caroline](#):
>
> so should i install again trytond version 5.0!
No, it’s a problem with your `csb43` package.
---
### Author:  [@dave](https://discuss.tryton.org/u/dave)
#### Post date: [September 10, 2021, 1:40pm UTC](https://discuss.tryton.org/t/unable-to-init-server-could-not-connect-connection-refused/4609/22 "2021-09-10T13:40:19Z")
> [@edbo](#):
>
> No, it’s a problem with your `csb43` package.
Which may have been fixed here: [Bitbucket](https://bitbucket.org/wmj/csb43/commits/9ce13546699c448b7eb7e9f3b898171f704af9c3)
Which would suggest you need to be using a version of csb43 \>= 0.8.2
---
### Author:  [@Caroline](https://discuss.tryton.org/u/Caroline)
#### Post date: [September 10, 2021, 2:15pm UTC](https://discuss.tryton.org/t/unable-to-init-server-could-not-connect-connection-refused/4609/23 "2021-09-10T14:15:08Z")
> [@edbo](#):
>
> You can look at the history at [csb43 · PyPI](https://pypi.org/project/csb43/#history) , choose a version and try again. That’s the nice thing of `pip`
> [@dave](#):
>
> Which may have been fixed here: [wmj / csb43 / commit / 9ce13546699c — Bitbucket](https://bitbucket.org/wmj/csb43/commits/9ce13546699c448b7eb7e9f3b898171f704af9c3)
Thanks M.@edbo and M. @dave i have solve it \<3 and now after update the database it goes normally and no errors.
But there was a thing i would to verify it, when i type `trytond --version` and `tryton --version` it gives me `command not found` in the virtual environment` 5.0`
If yes ,i want now to complete installing tryton version 6.0 in my another virtual environment so i have gone to the virtual enironment by` (workon project_tryton6.0)`where i already i have installed 6.0.0 this morning , but now when i put` trytond-admin -vv -c trytond.conf -d database_tryton6 --all`
Here it gives me `-bash: trytond-admin: command not found`,
This command become not workfull after uninstalling tryton globally, so
should i reinstall tryton 6.0 or what i should do !!
---
### Author:  [@edbo](https://discuss.tryton.org/u/edbo)
#### Post date: [September 10, 2021, 2:19pm UTC](https://discuss.tryton.org/t/unable-to-init-server-could-not-connect-connection-refused/4609/24 "2021-09-10T14:19:54Z")
I would normally install Tryton with the `pip` command, so in order to do that:
- go into your virtual environment
- activate it!
- `pip install trytond` (you are installing the most recent version, so no versioning is needed
- `pip install trytond-` for every module you want to install
If you have installed Tryton the same as in your other virtual environment, use the same commands.
---
### Author:  [@Caroline](https://discuss.tryton.org/u/Caroline)
#### Post date: [September 10, 2021, 2:34pm UTC](https://discuss.tryton.org/t/unable-to-init-server-could-not-connect-connection-refused/4609/25 "2021-09-10T14:34:20Z")
> [@edbo](#):
>
> - go into your virtual environment
> - activate it!
Just for verifying about those two steps,so then i don’t complicate things for me;
Here in my linux server you mean should i do :
`workon projecttryton6.0` (to go to the virtual environment)
and then
`. bin/activate`
and after that i type `pip install trytond`
---
### Author:  [@edbo](https://discuss.tryton.org/u/edbo)
#### Post date: [September 10, 2021, 2:39pm UTC](https://discuss.tryton.org/t/unable-to-init-server-could-not-connect-connection-refused/4609/26 "2021-09-10T14:39:41Z")
> [@Caroline](#):
>
> > [@edbo](#):
> >
> > - go into your virtual environment
> >
> > > - activate it!
>
> Just for verifying about those two steps,so then i don’t complicate things for me;
>
> Here in my linux server you mean should i do :
>
> `workon projecttryton6.0` (to go to the virtual environment)
I don’t know what you mean with `workon projecttryton6.0` Is this a command?
Imagine your virtual environment lives in `/home/caroline/venv/projecttryton6.0/`:
- cd into it `cd /home/caroline/venv/projecttryton6.0/`
- activate it `. bin/activate`
And now you can do everything you want with Python. It should stay in that virtual environment.
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