Could you post the smallest possible complete program that reproduces the error?
-- Assigning a Function to another Function does not work. https://bugs.launchpad.net/bugs/453207 You received this bug notification because you are subscribed to DOLFIN. Status in DOLFIN: New Bug description: There is an error when one wants to assign a Function to a new one: Function copy = orig; or Function copy(orig); raise both an error as /scratch-second/priesen/FEniCS/build/include/boost/smart_ptr/shared_ptr.hpp:412: typename boost::detail::shared_ptr_traits<T>::reference boost::shared_ptr< <template-parameter-1-1> >::operator*() const [with T = dolfin::GenericVector]: Assertion `px != 0' failed. in #3 0x00007f98fc291a09 in dolfin::Function::operator= (this=0x7fff047d2810, v...@0x7fff047d29c0) at /scratch-second/priesen/FEniCS/build/include/boost/smart_ptr/shared_ptr.hpp:412 #4 0x00007f98fc291d09 in Function (this=0x7fff047d2810, v...@0x7fff047d29c0) at dolfin/function/Function.cpp:113 Workaround: use Function copy(V_orig); copy.vector() = orig.vector(); _______________________________________________ DOLFIN-dev mailing list DOLFIN-dev@fenics.org http://www.fenics.org/mailman/listinfo/dolfin-dev