# Unfolding maps in 2D renderer

**URL:** <https://discourse.processing.org/t/unfolding-maps-in-2d-renderer/4843>\
**Category:** Libraries\
**Created:** [October 24, 2018, 11:09pm UTC](https://discourse.processing.org/t/unfolding-maps-in-2d-renderer/4843 "2018-10-24T23:09:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![cooki](https://avatars.discourse-cdn.com/v4/letter/c/e19adc/32.png) [@cooki](https://discourse.processing.org/u/cooki)\
**Post date:** [October 24, 2018, 11:09pm UTC](https://discourse.processing.org/t/unfolding-maps-in-2d-renderer/4843/1 "2018-10-24T23:09:03Z")

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#### I am trying to run a sketch with a visualization of tweets on a map of Barcelona using the UnfoldingMaps library I made some time ago. I have been encountering the error:

#### java.lang.NoSuchFieldError: quality

#### I tried running the example called “BikeObjectsMap” the library provides and the same error pops up, other examples are also not working.

#### Any help would be much appreciated.

---

<div class="post-metadata">

**Author:** ![hamoid](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/hamoid/32/58_2.png) [@hamoid](https://discourse.processing.org/u/hamoid)\
**Post date:** [October 25, 2018, 6:40am UTC](https://discourse.processing.org/t/unfolding-maps-in-2d-renderer/4843/2 "2018-10-25T06:40:37Z")

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Seems to be a known error:

> <https://github.com/tillnagel/unfolding/issues/128>
>
> This example (\\unfolding-master\\examples-processing\\ChoroplethMapApp)
> does not w…ork. It complains about missing "quality" parameter.
> 
> If I remove P2D from size, the application runs but no markers are colored.
> 
> Any suggestions would be appreciated.

There someone recommends to

> Try using OPENGL instead of P2D.

Maybe that works? Otherwise it is also suggested to ask the developers for a Processing 3 version of the library via e-mail:

> <https://github.com/tillnagel/unfolding/issues/116>