# Build Fails while it successfully runs locally with Fastlane

**URL:** <https://discuss.circleci.com/t/build-fails-while-it-successfully-runs-locally-with-fastlane/18655>\
**Category:** Build Environment\
**Tags:** ios\
**Created:** [December 8, 2017, 1:15pm UTC](https://discuss.circleci.com/t/build-fails-while-it-successfully-runs-locally-with-fastlane/18655 "2017-12-08T13:15:43Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![RahulVKasar](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/rahulvkasar/32/9839_2.png) [@RahulVKasar](https://discuss.circleci.com/u/RahulVKasar)\
**Post date:** [December 8, 2017, 1:15pm UTC](https://discuss.circleci.com/t/build-fails-while-it-successfully-runs-locally-with-fastlane/18655/1 "2017-12-08T13:15:43Z")

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Hi,

I am unable to build and submit the app to testflight. I am getting the following error

**^D^Dchruby: unknown Ruby: 2.4.2**  
**Warning: the running version of Bundler (1.15.1) is older than the version that created the lockfile (1.16.0). We suggest you upgrade to the latest version of Bundler by running `gem install bundler`.**  
**Your Ruby version is 2.0.0, but your Gemfile specified 2.4.2**  
**Exited with code 18**

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**Author:** ![levlaz](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/levlaz/32/36978_2.png) [@levlaz](https://discuss.circleci.com/u/levlaz)\
**Post date:** [December 10, 2017, 1:35am UTC](https://discuss.circleci.com/t/build-fails-while-it-successfully-runs-locally-with-fastlane/18655/2 "2017-12-10T01:35:52Z")

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Are you using CircleCI 1.0 or 2.0?

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**Author:** ![RahulVKasar](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/rahulvkasar/32/9839_2.png) [@RahulVKasar](https://discuss.circleci.com/u/RahulVKasar)\
**Post date:** [December 11, 2017, 6:59am UTC](https://discuss.circleci.com/t/build-fails-while-it-successfully-runs-locally-with-fastlane/18655/3 "2017-12-11T06:59:17Z")

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Hi

I am using CircleCI 2.0?

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**Author:** ![vfn](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/vfn/32/411_2.png) [@vfn](https://discuss.circleci.com/u/vfn)\
**Post date:** [December 21, 2017, 4:26am UTC](https://discuss.circleci.com/t/build-fails-while-it-successfully-runs-locally-with-fastlane/18655/4 "2017-12-21T04:26:01Z")

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If you can, just specify `2.4` on your `.ruby-version`

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**Author:** ![levlaz](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/levlaz/32/36978_2.png) [@levlaz](https://discuss.circleci.com/u/levlaz)\
**Post date:** [December 23, 2017, 10:14pm UTC](https://discuss.circleci.com/t/build-fails-while-it-successfully-runs-locally-with-fastlane/18655/5 "2017-12-23T22:14:20Z")

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> [@vfn](#):
>
> If you can, just specify 2.4 on your .ruby-version

This should work. @RahulVKasar could you give this a try?

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**Author:** ![system](https://global.discourse-cdn.com/circleci/original/3X/5/1/511608acda8e85906e15909b57bd0a46c1dbe291.png) [@system](https://discuss.circleci.com/u/system)\
**Post date:** [June 18, 2018, 11:40am UTC](https://discuss.circleci.com/t/build-fails-while-it-successfully-runs-locally-with-fastlane/18655/6 "2018-06-18T11:40:09Z")

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