I have tried a numbers of dolfin scripts and all throw an error when the run hit a line-code with V = FunctionSpace (mesh,‘Lagrange’, 1) produces Error: ‘no attribute _cpp object’ Furthermore, the call to DirichletBC (V, u0, u0_boundary) produces Error: ‘no attribute _ufl_element’`. I think I have…

We would need a minimal example that can reproduce the error. Right now, it is not clear what the issue is, as you have not shown Your imports how you define your mesh It is also unclear how you get to the next line when the code throws an error further up.

Just a few hours ago I resolved similar problem I had encountered on my Docker image (i.e. Fenics crash on FunctionSpace calling). This thread helped me: https://fenicsproject.discourse.group/t/error-running-demo-code/290 Basically what I did was: apt-get -y install build-essential

Thank. I was so distress that I remove FEniCS from Ubuntu PPA fully and Load Anaconda and followed the instruction given by fenicsproject. Simply something was wrong with FEniCS software for Ubuntu. The most simply examples of FEniCS (dolfin) in any elementary textbook did not run on a python termin…

Thank. If you are working on a Docker surely you will not witnesses the problem some users of FEniCS have, specially using Spyder IDE (on Ubuntu) to run FEniCS code. So far, appears, no one has a firm and proper way to solve this problem of having difficulties running FEniCS code on Spyder. I will …

Hello, The system responds 'build-essential is already the newest version (12.8ubuntu1). Thank for your time.

As i said above, you should change your spyder Python path: https://stackoverflow.com/questions/11919615/how-to-change-the-path-of-python-in-spyder

The link you offer to solve the problems of Spyder ‘not working with Fenics’ code is relatively outdated and not of help. I have already solved the problem after reading the following link: https://www.digitalocean.com/community/tutorials/how-to-install-the-anaconda-python-distribution-on-ubuntu-20-…

Fenics 2019.1.0 cannot acess C++ source

dokken June 10, 2020, 9:26am 5

See the previous post that I replied to for you: FEniCS 2019.1.0 in Ubuntu 2020.04

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Fenics 2019.1.0 cannot acess C++ source

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