# Library on Crystal doesn't allow 1.0

**URL:** <https://travis-ci.community/t/library-on-crystal-doesnt-allow-1-0/11355>\
**Category:** Crystal\
**Tags:** travis-build\
**Created:** [March 25, 2021, 12:18pm UTC](https://travis-ci.community/t/library-on-crystal-doesnt-allow-1-0/11355 "2021-03-25T12:18:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![roduquen](https://sea1.discourse-cdn.com/flex015/user_avatar/travis-ci.community/roduquen/32/6362_2.png) [@roduquen](https://travis-ci.community/u/roduquen)\
**Post date:** [March 25, 2021, 12:18pm UTC](https://travis-ci.community/t/library-on-crystal-doesnt-allow-1-0/11355/1 "2021-03-25T12:18:17Z")

</div>

Hi everyone, glad you updated travis-ci with the new crystal 1.0 but I met an issue now, I have this error :  
$ pip install --user awscli

before\_install.2

0.00s$ export PATH=$PATH:$HOME/.local/bin

5.58s$ shards install

Resolving dependencies

Fetching [https://github.com/kemalcr/kemal.git](https://github.com/kemalcr/kemal.git)

Fetching [https://github.com/luislavena/radix.git](https://github.com/luislavena/radix.git)

Fetching [https://github.com/jeromegn/kilt.git](https://github.com/jeromegn/kilt.git)

Fetching [https://github.com/crystal-loot/exception\_page.git](https://github.com/crystal-loot/exception_page.git)

Fetching [https://github.com/elbywan/cryomongo.git](https://github.com/elbywan/cryomongo.git)

Fetching [https://github.com/elbywan/bson.cr.git](https://github.com/elbywan/bson.cr.git)

Fetching [https://github.com/crystal-lang/crystal-db.git](https://github.com/crystal-lang/crystal-db.git)

Unable to satisfy the following requirements:

- `crystal (~> 0.35, >= 0.35.0)` required by `kemal 0.27.0`

- `crystal (~> 0.35, >= 0.35.0)` required by `cryomongo 0.3.3+git.commit.d2e1f31fdf879c26aaf961eda2cb55dfa3f69f0a`

- `crystal (< 1.0.0)` required by `radix 0.3.9`

- `crystal (< 1.0.0)` required by `kilt 0.4.0`

- `crystal (~> 0.33, >= 0.33.0)` required by `exception_page 0.1.4`

Failed to resolve dependencies, try updating incompatible shards or use --ignore-crystal-version as a workaround if no update is available.

What is the best solution to troubleshoot this problem on travis ? Actually on my own dockers I just changed and add --ignore-crystal-version and it is working.  
Thanks Robin

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<div class="post-metadata">

**Author:** ![Blacksmoke16](https://sea1.discourse-cdn.com/flex015/user_avatar/travis-ci.community/blacksmoke16/32/6452_2.png) [@Blacksmoke16](https://travis-ci.community/u/Blacksmoke16)\
**Post date:** [April 13, 2021, 1:51am UTC](https://travis-ci.community/t/library-on-crystal-doesnt-allow-1-0/11355/2 "2021-04-13T01:51:17Z")

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This isn’t a Travis issue. See [Weird "shards outdated" output (Crystal 1.0.0) - Help & Support - The Crystal Programming Language Forum](https://forum.crystal-lang.org/t/weird-shards-outdated-output-crystal-1-0-0/3065).