# 将 vBulletin 4 论坛迁移到 Discourse

**URL:** <https://meta.discourse.org/t/migrate-a-vbulletin-4-forum-to-discourse/54881>\
**Category:** Sysadmins\
**Tags:** how-to\
**Created:** [2016年十二月28日 14:59 UTC](https://meta.discourse.org/t/migrate-a-vbulletin-4-forum-to-discourse/54881 "2016-12-28T14:59:29Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![prakarshupmanyu](https://avatars.discourse-cdn.com/v4/letter/p/c68b51/32.png) [@prakarshupmanyu](https://meta.discourse.org/u/prakarshupmanyu)\
**Post date:** [2017年三月12日 09:32 UTC](https://meta.discourse.org/t/migrate-a-vbulletin-4-forum-to-discourse/54881/7 "2017-03-12T09:32:34Z")

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I was following your guide to import my vBulletin forum to Discourse. I am using a docker container for Discourse. I ran the following command:

> [@enigmaty](#):
>
> su discourse -c ‘bundle install --no-deployment --without test --without development’

I got a long list of errors:

```
sudo: no tty present and no askpass program specified
sudo: no tty present and no askpass program specified
[...]
sudo: no tty present and no askpass program specified
sudo: no tty present and no askpass program specified

Bundler::SudoNotPermittedError: Bundler requires sudo access to install at the moment. Try installing again, granting Bundler sudo access when
prompted, or installing into a different path.
An error occurred while installing rake (11.2.2), and Bundler cannot continue.
Make sure that `gem install rake -v '11.2.2'` succeeds before bundling.

```

I am new to ruby on rails and dockers. I do understand the concept of gems and Bundler.  
What do these errors mean and how can I resolve them?

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_[View the full topic](https://meta.discourse.org/t/migrate-a-vbulletin-4-forum-to-discourse/54881)._