Dear all, I’m trying to update my firedrake on ARCHER. I updated all relevant packages (fiat, petsc, coffee, ufl, ffc, PyOP2 and firedrake) but when I try to run firedrake-clean I get the error below. Any idea what this could be? Thanks, Eike /opt/modules/default/init/bash: line 11: unalias: pip: not found Traceback (most recent call last): File "/var/opt/cray/alps/spool/13759147/firedrake-clean", line 3, in <module> from firedrake.ffc_interface import clear_cache, FFCKernel File "/fs2/n02/n02/eike/git_workspace/firedrake/firedrake/__init__.py", line 2, in <module> import petsc File "/fs2/n02/n02/eike/git_workspace/firedrake/firedrake/petsc.py", line 4, in <module> petsc4py.init(sys.argv) File "/work/n02/n02/eike/git_workspace/petsc4py/cray-gnu-shared/lib/python2.7/site-packages/petsc4py/__init__.py", line 42, in init PETSc = petsc4py.lib.ImportPETSc(arch) File "/work/n02/n02/eike/git_workspace/petsc4py/cray-gnu-shared/lib/python2.7/site-packages/petsc4py/lib/__init__.py", line 29, in ImportPETSc return Import('petsc4py', 'PETSc', path, arch) File "/work/n02/n02/eike/git_workspace/petsc4py/cray-gnu-shared/lib/python2.7/site-packages/petsc4py/lib/__init__.py", line 64, in Import module = imp.load_module(fullname, fo, fn, stuff) ImportError: /work/n02/n02/eike/git_workspace/petsc/cray-gnu-shared/lib/libpetsc.so.3.05: undefined symbol: PetscDLLibraryRegister_petscts -- Dr Eike Hermann Mueller Lecturer in Scientific Computing Department of Mathematical Sciences University of Bath Bath BA2 7AY, United Kingdom +44 1225 38 5557 e.mueller@bath.ac.uk<mailto:e.mueller@bath.ac.uk> http://people.bath.ac.uk/em459/