--- title: Which version of core ends up in your lockfile? | daily.dev description: A dependency resolution puzzle about a failure mode that hides from normal debugging. Three packages share a single dependency, and each declares its own... canonical: https://daily.dev/posts/which-version-of-core-ends-up-in-your-lockfile--peggvql3y twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Which version of core ends up in your lockfile? | daily.dev og:description: A dependency resolution puzzle about a failure mode that hides from normal debugging. Three packages share a single dependency, and each declares its own... og:url: https://daily.dev/posts/which-version-of-core-ends-up-in-your-lockfile--peggvql3y og:image: https://api.daily.dev/og/posts/PeGGvqL3Y.png og:image:alt: Which version of core ends up in your lockfile? og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Which version of core ends up in your lockfile? **[Google for Developers](https://daily.dev/sources/googledevelopers)** · 1 min read · 0 upvotes · 0 comments ## Summary A dependency resolution puzzle about a failure mode that hides from normal debugging. Three packages share a single dependency, and each declares its own version constraint. Checked in pairs, every combination is compatible. The question is what happens when all three are installed together. Watch the clip and comment: which version of the shared dependency gets installed? Subscribe to Google for Developers → https://goo.gle/developers Speakers: Jasmyne Roberts ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#general-programming](https://daily.dev/tags/general-programming), [#google](https://daily.dev/tags/google) [View this post on daily.dev](https://daily.dev/posts/which-version-of-core-ends-up-in-your-lockfile--peggvql3y) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Which version of core ends up in your lockfile?","url":"https://daily.dev/posts/which-version-of-core-ends-up-in-your-lockfile--peggvql3y","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/which-version-of-core-ends-up-in-your-lockfile--peggvql3y"},"datePublished":"2026-08-03T13:11:30.845Z","dateModified":"2026-08-03T14:58:36.893Z","description":"A dependency resolution puzzle about a failure mode that hides from normal debugging.\nThree packages share a single dependency, and each declares its own...","image":"https://i.ytimg.com/vi/qwUM4Sk1_nE/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/qwUM4Sk1_nE/sddefault.jpg","isAccessibleForFree":true,"articleSection":"Google for Developers","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Google for Developers","logo":"https://media.daily.dev/image/upload/s--jj3nxRoG--/f_auto/v1725035497/logos/googledevelopers","url":"https://daily.dev/sources/googledevelopers"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/which-version-of-core-ends-up-in-your-lockfile--peggvql3y","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"general-programming,google","timeRequired":"PT1M","video":{"@type":"VideoObject","name":"Which version of core ends up in your lockfile?","description":"A dependency resolution puzzle about a failure mode that hides from normal debugging.\nThree packages share a single dependency, and each declares its own...","thumbnailUrl":"https://i.ytimg.com/vi/qwUM4Sk1_nE/sddefault.jpg","uploadDate":"2026-08-03T13:11:30.845Z","duration":"PT1M","url":"https://api.daily.dev/r/PeGGvqL3Y","embedUrl":"https://www.youtube.com/embed/qwUM4Sk1_nE"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Google for Developers","item":"https://daily.dev/sources/googledevelopers"},{"@type":"ListItem","position":3,"name":"Which version of core ends up in your lockfile?"}]} ```