From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Thu, 20 Mar 2014 21:13:50 +0000 (+0000)
Subject: Improve error message.
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ff26882f03d8117b7e2fe832609d49ca59cb0443;p=dealii-svn.git

Improve error message.

git-svn-id: https://svn.dealii.org/trunk@32676 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/source/lac/petsc_solver.cc b/deal.II/source/lac/petsc_solver.cc
index bf1cdbb142..4524e91c37 100644
--- a/deal.II/source/lac/petsc_solver.cc
+++ b/deal.II/source/lac/petsc_solver.cc
@@ -803,7 +803,9 @@ namespace PETScWrappers
 #else  // PETSC_HAVE_MUMPS
     Assert (false,
             ExcMessage ("Your PETSc installation does not include a copy of "
-                        "MUMPS package necessary for this solver"));
+                        "the MUMPS package necessary for this solver. You will need to configure "
+                        "PETSc so that it includes MUMPS, recompile it, and then re-configure "
+                        "and recompile deal.II as well."));
 
     // Cast to void to silence compiler warnings
     (void) A;