[deal.II] tutorial step-36 failed with PETSc error number 76 while calling a SLEPc function

[Pragalv Karki]

I was trying to run the tutorial 36 but it shows up with following errors:

[0]PETSC ERROR: --------------------- Error Message --------------------------------------------------------------

[0]PETSC ERROR: Error in external library

[0]PETSC ERROR: Error in LAPACK subroutine steqr: info=0

[0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for trouble shooting.

[0]PETSC ERROR: Petsc Release Version 3.10.0, Sep, 12, 2018 

[0]PETSC ERROR: ./step-36 on a  named Pragalvs-MacBook-Air.local by pragalvkarki Tue Sep 10 15:29:22 2019

(Lot of unnecessary stuff (I think ) in between these error messages)

An error occurred in line <182> of file </Applications/deal.II.app/Contents/Resources/spack/src/dealii-v9.1.1/source/lac/slepc_solver.cc> in function

    void dealii::SLEPcWrappers::SolverBase::solve(const unsigned int, unsigned int *)

The violated condition was: 

    ierr == 0

Additional information: 

        An error with error number 76 occurred while calling a SLEPc function 

One of the error says " Petsc Release Version 3.10.0" . Is dealii not compatible with this version yet? I would really appreciate your help.

- Pragalv