# Parallel execution is an incubating feature

**URL:** <https://discuss.bitrise.io/t/parallel-execution-is-an-incubating-feature/5906>\
**Category:** Builds\
**Tags:** android\
**Created:** [August 13, 2018, 3:45pm UTC](https://discuss.bitrise.io/t/parallel-execution-is-an-incubating-feature/5906 "2018-08-13T15:45:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![p.val](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/p.val/32/1506_2.png) [@p.val](https://discuss.bitrise.io/u/p.val)\
**Post date:** [August 13, 2018, 3:45pm UTC](https://discuss.bitrise.io/t/parallel-execution-is-an-incubating-feature/5906/1 "2018-08-13T15:45:32Z")

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# Bitrise Build Issue Report template

## Description of the issue

The build fails on a step `install-missing-android-tools@2.2.0` with `exit code: 1`. I’ve tried the local build from cloned repo using Gradle `assemble` and it worked. The issue started a few days ago and it appears on different branches that were changed independently. I can’t define the piece of code change that causes this exception.

## Environment:

Ubuntu 18.04. The issue happens during `install-missing-android-tools@2.2.0`

## Reproducibility

- Rebuilding does not help
- Rebuild without caches does not help (I excluded caches steps from the workflow)
- The issue happens every build/rebuild
- It’s the latest version of the step
- It started a few days ago

### Local reproduction

It can’t be reproduced locally because this step is not required for local builds. It gets skipped.

## Build log

Link to the build: [https://app.bitrise.io/build/b2da8b2673e1a7b6](https://app.bitrise.io/build/b2da8b2673e1a7b6)

# UPD

The same workflow step works fine for another workflow of the same branch. E.g.: I’ve tried [1st workflow](https://app.bitrise.io/build/d1cfab7d6bf92899) that has the same step `install-missing-android-tools@2.2.0` and it finished successfully. Then I’ve tried [another workflow](https://app.bitrise.io/build/4a7a74d475bcc995) for the same commit and it failed.

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**Author:** ![bitce](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/bitce/32/1639_2.png) [@bitce](https://discuss.bitrise.io/u/bitce)\
**Post date:** [August 15, 2018, 7:59am UTC](https://discuss.bitrise.io/t/parallel-execution-is-an-incubating-feature/5906/2 "2018-08-15T07:59:00Z")

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Hi @p.val!  
Sorry to hear about the issue.

Thanks for contacting us here, we’ll look into it and ger back to you ASAP!

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**Author:** ![tamasbazsonyi](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/tamasbazsonyi/32/1654_2.png) [@tamasbazsonyi](https://discuss.bitrise.io/u/tamasbazsonyi)\
**Post date:** [August 25, 2018, 1:28am UTC](https://discuss.bitrise.io/t/parallel-execution-is-an-incubating-feature/5906/3 "2018-08-25T01:28:54Z")

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Adding the solution here also: The solution was to make sure that there was a default versionCode and versionName set in the build.gradle file as the build was picking up these and started failing for PR builds. Usually the default values would look like:

versionCode 1  
versionName “1.0”

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**Author:** ![tamasbazsonyi](https://sea2.discourse-cdn.com/flex016/user_avatar/discuss.bitrise.io/tamasbazsonyi/32/1654_2.png) [@tamasbazsonyi](https://discuss.bitrise.io/u/tamasbazsonyi)\
**Post date:** [August 25, 2018, 1:29am UTC](https://discuss.bitrise.io/t/parallel-execution-is-an-incubating-feature/5906/4 "2018-08-25T01:29:00Z")

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