# Modern Front-End Development for Rails (beta 6 pg 37) - Stimulus targets issues

**URL:** <https://forum.devtalk.com/t/modern-front-end-development-for-rails-beta-6-pg-37-stimulus-targets-issues/1449>\
**Category:** PragProg Customers\
**Tags:** book-modern-front-end-development-for-rails, errata\
**Created:** [1 September 2020 21:28 UTC](https://forum.devtalk.com/t/modern-front-end-development-for-rails-beta-6-pg-37-stimulus-targets-issues/1449 "2020-09-01T21:28:01Z")\
**Posts on this page:** 1\
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**Author:** ![noelrappin](https://forum.devtalk.com/user_avatar/forum.devtalk.com/noelrappin/32/481_2.png) [@noelrappin](https://forum.devtalk.com/u/noelrappin)\
**Post date:** [8 September 2020 14:15 UTC](https://forum.devtalk.com/t/modern-front-end-development-for-rails-beta-6-pg-37-stimulus-targets-issues/1449/2 "2020-09-08T14:15:01Z")

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This error is related to the Webpacker and Babel setup that changed in Webpacker 5.1, so it is related to targets in that targets cause the `static` elements to be used and the Babel setup has some trouble with that language feature.

it’s possible that some of the directories in the sample code weren’t updated properly, I’ll take a look.

Thanks!

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