# Build recommended

**URL:** <https://renku.discourse.group/t/build-recommended/139>\
**Category:** General\
**Created:** [19 June 2020 07:33 UTC](https://renku.discourse.group/t/build-recommended/139 "2020-06-19T07:33:35Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![LiliGasser](https://yyz2.discourse-cdn.com/free1/user_avatar/renku.discourse.group/liligasser/32/89_2.png) [@LiliGasser](https://renku.discourse.group/u/LiliGasser)\
**Post date:** [19 June 2020 07:33 UTC](https://renku.discourse.group/t/build-recommended/139/1 "2020-06-19T07:33:35Z")

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After starting a new environment, there was the following message:  
 ![Screenshot from 2020-06-19 09-18-55](https://global.discourse-cdn.com/free1/uploads/renku/original/1X/4cf05437bbb0c5c1b8fb39375c3efb27032ac09c.png)

Clicking Build led to the following:  
(see first comment)

Do I need to do anything?

Thanks in advance!  
Lili

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**Author:** ![LiliGasser](https://yyz2.discourse-cdn.com/free1/user_avatar/renku.discourse.group/liligasser/32/89_2.png) [@LiliGasser](https://renku.discourse.group/u/LiliGasser)\
**Post date:** [19 June 2020 07:33 UTC](https://renku.discourse.group/t/build-recommended/139/2 "2020-06-19T07:33:44Z")

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![Screenshot from 2020-06-19 09-23-44](https://global.discourse-cdn.com/free1/uploads/renku/original/1X/9da4991479cd1c0828fb1b4307890a97a8f19ad4.png)

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**Author:** ![emmjab](https://avatars.discourse-cdn.com/v4/letter/e/ed8c4c/32.png) [@emmjab](https://renku.discourse.group/u/emmjab)\
**Post date:** [19 June 2020 07:36 UTC](https://renku.discourse.group/t/build-recommended/139/3 "2020-06-19T07:36:19Z")

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This looks to me like you have a different version of jupyterlab in your project than the one provided in the image – do you happen to have it pinned in requirements.txt or environment.yml?

We provide the versions for jupyter\* related libraries in the default image, so you shouldn’t pin them. Maybe we should be explicit about this in comments in the template dockerfile.

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**Author:** ![LiliGasser](https://yyz2.discourse-cdn.com/free1/user_avatar/renku.discourse.group/liligasser/32/89_2.png) [@LiliGasser](https://renku.discourse.group/u/LiliGasser)\
**Post date:** [19 June 2020 10:07 UTC](https://renku.discourse.group/t/build-recommended/139/4 "2020-06-19T10:07:26Z")

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No, I don’t pin them. Anything else that could cause this?

If you want to have a closer look at it, it is the same repo as last time [https://renkulab.io/gitlab/gasserli/raw-data-preprocessing](https://renkulab.io/gitlab/gasserli/raw-data-preprocessing)

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**Author:** ![LiliGasser](https://yyz2.discourse-cdn.com/free1/user_avatar/renku.discourse.group/liligasser/32/89_2.png) [@LiliGasser](https://renku.discourse.group/u/LiliGasser)\
**Post date:** [29 July 2020 06:44 UTC](https://renku.discourse.group/t/build-recommended/139/5 "2020-07-29T06:44:57Z")

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Hi there,

the first message still appears. When I now click build, there is no more error “Build Failed”.

Cheers,  
Lili