# MeshView and MixedFunctionSpace

**URL:** <https://fenicsproject.discourse.group/t/meshview-and-mixedfunctionspace/3466>\
**Category:** installation\
**Created:** [June 8, 2020, 4:48am UTC](https://fenicsproject.discourse.group/t/meshview-and-mixedfunctionspace/3466 "2020-06-08T04:48:23Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![joh\_annes](https://avatars.discourse-cdn.com/v4/letter/j/ecd19e/32.png) [@joh\_annes](https://fenicsproject.discourse.group/u/joh_annes)\
**Post date:** [June 8, 2020, 4:48am UTC](https://fenicsproject.discourse.group/t/meshview-and-mixedfunctionspace/3466/1 "2020-06-08T04:48:23Z")

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Hello,

I tried to run the Poisson example from [https://zenodo.org/record/3525001#.Xt29RpZpw5k](https://zenodo.org/record/3525001#.Xt29RpZpw5k) which should work with dolfin version 2019.1, but I get the error message NameError: name ‘MeshView’ is not defined and NameError: name ‘MixedFunctionSpace’ is not defined. My current dolfin version is 2019.1.0. Is there some newer version or do I have to include these functions additionally?

Kind regards,  
Johannes

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**Author:** ![dokken](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/dokken/32/1560_2.png) [@dokken](https://fenicsproject.discourse.group/u/dokken)\
**Post date:** [June 8, 2020, 5:10am UTC](https://fenicsproject.discourse.group/t/meshview-and-mixedfunctionspace/3466/2 "2020-06-08T05:10:50Z")

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You should use the latest development version of dolfin, Which you can find at [https://quay.io/repository/fenicsproject/dev](https://quay.io/repository/fenicsproject/dev).  
Or at [https://hub.docker.com/r/ceciledc/fenics\_mixed\_dimensional](https://hub.docker.com/r/ceciledc/fenics_mixed_dimensional)

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**Author:** ![dparsons](https://avatars.discourse-cdn.com/v4/letter/d/5e9695/32.png) [@dparsons](https://fenicsproject.discourse.group/u/dparsons)\
**Post date:** [June 8, 2020, 5:49am UTC](https://fenicsproject.discourse.group/t/meshview-and-mixedfunctionspace/3466/3 "2020-06-08T05:49:42Z")

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A snapshot is available in the next Debian and Ubuntu releases currently being tested (debian testing and ubuntu Groovy Gorilla. Also available on the FEniCS PPA for Ubuntu Eoan)

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**Author:** ![joh\_annes](https://avatars.discourse-cdn.com/v4/letter/j/ecd19e/32.png) [@joh\_annes](https://fenicsproject.discourse.group/u/joh_annes)\
**Post date:** [June 8, 2020, 10:59pm UTC](https://fenicsproject.discourse.group/t/meshview-and-mixedfunctionspace/3466/4 "2020-06-08T22:59:05Z")

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Is there any information when the new version will be released? (I struggle with the installation of the development version)

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**Author:** ![dparsons](https://avatars.discourse-cdn.com/v4/letter/d/5e9695/32.png) [@dparsons](https://fenicsproject.discourse.group/u/dparsons)\
**Post date:** [June 9, 2020, 7:31pm UTC](https://fenicsproject.discourse.group/t/meshview-and-mixedfunctionspace/3466/5 "2020-06-09T19:31:50Z")

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Developers have been focusing on dolfinx, which is still in development. No word on releasing the dolfin update yet.

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**Author:** ![dokken](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/dokken/32/1560_2.png) [@dokken](https://fenicsproject.discourse.group/u/dokken)\
**Post date:** [June 9, 2020, 7:41pm UTC](https://fenicsproject.discourse.group/t/meshview-and-mixedfunctionspace/3466/6 "2020-06-09T19:41:31Z")

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@dparsons i think it could be done now, as there have been no contributions to master of dolfin since March. I guess it might be worth while to get @jackhale involved.

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**Author:** ![dparsons](https://avatars.discourse-cdn.com/v4/letter/d/5e9695/32.png) [@dparsons](https://fenicsproject.discourse.group/u/dparsons)\
**Post date:** [June 10, 2020, 5:56am UTC](https://fenicsproject.discourse.group/t/meshview-and-mixedfunctionspace/3466/7 "2020-06-10T05:56:11Z")

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Changes are still rolling into fiat and some in ufl, which are still common between dolfin and dolfinx. Jack will be able to say how close release is.