Hi,
i'm new to fenics, i've installed a version on ubuntu xenial and was trying to run the demo files installed in /usr/share/dolfin/demo, most of the examples works fine and i get the plots which means the installation was succesful, however when i try to run the python version under /undocumented/elasticity i get the following error:
In instant.import_module_directly: Failed to import module 'ffc_element_5ff93ed5beed77d8178dd5a0f0a4bc868806fbc1' from '/home/hossam/.instant/cache';
ImportError:libboost_math_tr1.so.1.61.0: cannot open shared object file: No such file or directory;
Failed to import module found in cache. Modulename: 'ffc_element_5ff93ed5beed77d8178dd5a0f0a4bc868806fbc1';
Path: '/home/hossam/.instant/cache';
ImportError:libboost_math_tr1.so.1.61.0: cannot open shared object file: No such file or directory;
Traceback (most recent call last):
File "demo_elasticity.py", line 89, in <module>
V = VectorFunctionSpace(mesh, "Lagrange", 1)
File "/usr/lib/python2.7/dist-packages/dolfin/functions/functionspace.py", line 551, in VectorFunctionSpace
constrained_domain=constrained_domain)
File "/usr/lib/python2.7/dist-packages/dolfin/functions/functionspace.py", line 204, in __init__
self._init_from_ufl(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/dolfin/functions/functionspace.py", line 224, in _init_from_ufl
dolfin_element, dolfin_dofmap = _compile_dolfin_element(element, mesh, constrained_domain=constrained_domain)
File "/usr/lib/python2.7/dist-packages/dolfin/functions/functionspace.py", line 89, in _compile_dolfin_element
ufc_element, ufc_dofmap = jit(element, mpi_comm=mesh.mpi_comm())
File "/usr/lib/python2.7/dist-packages/dolfin/compilemodules/jit.py", line 65, in mpi_jit
return local_jit(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/dolfin/compilemodules/jit.py", line 124, in jit
result = ffc.jit(ufl_object, parameters=p)
File "/usr/lib/python2.7/dist-packages/ffc/jitcompiler.py", line 201, in jit
module = jit_build_with_instant(ufl_object, module_name, parameters)
File "/usr/lib/python2.7/dist-packages/ffc/jitcompiler.py", line 72, in jit_build_with_instant
module = instant.import_module(module_name, cache_dir=cache_dir)
File "/usr/lib/python2.7/dist-packages/instant/cache.py", line 171, in import_module
return check_disk_cache(modulename, cache_dir, moduleids)
File "/usr/lib/python2.7/dist-packages/instant/cache.py", line 139, in check_disk_cache
module = import_and_cache_module(path, modulename, moduleids)
File "/usr/lib/python2.7/dist-packages/instant/cache.py", line 87, in import_and_cache_module
instant_assert(module is not None, "Failed to import module found in cache. Modulename: '%s';\nPath: '%s';\n%s:%s;" % (modulename, path, type(e).__name__, e))
File "/usr/lib/python2.7/dist-packages/instant/output.py", line 91, in instant_assert
raise AssertionError(text)
AssertionError: Failed to import module found in cache. Modulename: 'ffc_element_5ff93ed5beed77d8178dd5a0f0a4bc868806fbc1';
Path: '/home/hossam/.in
can you please help me to understand what is the source of this error?