# Processing prompt does not install G4P, how to solve it?

**URL:** <https://discourse.processing.org/t/processing-prompt-does-not-install-g4p-how-to-solve-it/8549>\
**Category:** Libraries\
**Created:** [February 20, 2019, 12:46am UTC](https://discourse.processing.org/t/processing-prompt-does-not-install-g4p-how-to-solve-it/8549 "2019-02-20T00:46:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![aienzer](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@aienzer](https://discourse.processing.org/u/aienzer)\
**Post date:** [February 20, 2019, 12:46am UTC](https://discourse.processing.org/t/processing-prompt-does-not-install-g4p-how-to-solve-it/8549/1 "2019-02-20T00:46:06Z")

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![11](https://canada1.discourse-cdn.com/flex036/uploads/processingfoundation1/original/2X/f/fb67d48432bfc33a78d82a87d9b6f0f9de5b2021.png)

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**Author:** ![kll](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/kll/32/964_2.png) [@kll](https://discourse.processing.org/u/kll)\
**Post date:** [February 20, 2019, 2:09am UTC](https://discourse.processing.org/t/processing-prompt-does-not-install-g4p-how-to-solve-it/8549/2 "2019-02-20T02:09:15Z")

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i think you are in  
Contribution Manager / Tools / G4P GUI Builder ( v 4.3 )  
but need to install also:  
Contribution Manager / Libraries / G4P ( v4.2.0 )

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**Author:** ![quark](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/quark/32/26_2.png) [@quark](https://discourse.processing.org/u/quark)\
**Post date:** [February 20, 2019, 9:39am UTC](https://discourse.processing.org/t/processing-prompt-does-not-install-g4p-how-to-solve-it/8549/3 "2019-02-20T09:39:24Z")

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This warning is given if you launch GUI Builder but you have not installed G4P.

@kll is correct you need to install G4P via the Contributions Manager 😄

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<div class="post-metadata">

**Author:** ![aienzer](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@aienzer](https://discourse.processing.org/u/aienzer)\
**Post date:** [February 23, 2019, 5:43pm UTC](https://discourse.processing.org/t/processing-prompt-does-not-install-g4p-how-to-solve-it/8549/4 "2019-02-23T17:43:48Z")

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Thank you for helping me solve this problem.