# Web Development with Clojure, Third Edition: jsonista dependency missing on pdf p. 218

**URL:** <https://forum.devtalk.com/t/web-development-with-clojure-third-edition-jsonista-dependency-missing-on-pdf-p-218/14292>\
**Category:** PragProg Customers\
**Tags:** book-web-development-with-clojure-third-edition, errata\
**Created:** [22 July 2021 15:29 UTC](https://forum.devtalk.com/t/web-development-with-clojure-third-edition-jsonista-dependency-missing-on-pdf-p-218/14292 "2021-07-22T15:29:20Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![lycheese](https://forum.devtalk.com/letter_avatar_proxy/v4/letter/l/58f4c7/32.png) [@lycheese](https://forum.devtalk.com/u/lycheese)\
**Post date:** [22 July 2021 15:29 UTC](https://forum.devtalk.com/t/web-development-with-clojure-third-edition-jsonista-dependency-missing-on-pdf-p-218/14292/1 "2021-07-22T15:29:20Z")

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@Dmitri @svmbrown

On page 218 in the pdf jsonista.core/keyword-keys-object-mapper is used, but this variable is only introduced in version “0.3.0” and the previous dependencies only go up to “0.2.X” leading to a no such var error.

When looking in the supplied source code in guestbook-profile/project.clj a new line with [metosin/jsonista “0.3.1”] is added but there is no mention of that change in the book.

(PDF Version B17.0)

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**Author:** ![jasonwu](https://forum.devtalk.com/letter_avatar_proxy/v4/letter/j/9de053/32.png) [@jasonwu](https://forum.devtalk.com/u/jasonwu)\
**Post date:** [31 July 2021 22:15 UTC](https://forum.devtalk.com/t/web-development-with-clojure-third-edition-jsonista-dependency-missing-on-pdf-p-218/14292/2 "2021-07-31T22:15:35Z")

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Thanks for posting this. I’ve been stuck on this issue for the past day, and that just solved it for me. I appreciate you.

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**Author:** ![kentbull](https://forum.devtalk.com/user_avatar/forum.devtalk.com/kentbull/32/1308_2.png) [@kentbull](https://forum.devtalk.com/u/kentbull)\
**Post date:** [16 August 2021 04:00 UTC](https://forum.devtalk.com/t/web-development-with-clojure-third-edition-jsonista-dependency-missing-on-pdf-p-218/14292/3 "2021-08-16T04:00:00Z")

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I had this same problem. As I added that dependency I noticed many other dependencies in my generated project.clj were different than what the author has in the `guestbook-profile` directory of the sample code. I upgraded all of them to the author’s version and everything worked.

It seems like technical editing should have caught this. I’m surprised they released the book with this issue.

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**Author:** ![pm9999](https://forum.devtalk.com/letter_avatar_proxy/v4/letter/p/13edae/32.png) [@pm9999](https://forum.devtalk.com/u/pm9999)\
**Post date:** [18 August 2021 23:26 UTC](https://forum.devtalk.com/t/web-development-with-clojure-third-edition-jsonista-dependency-missing-on-pdf-p-218/14292/4 "2021-08-18T23:26:15Z")

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Dependency is still missing in PDF version P1.0