Hello Deal.II community,
I am working on deal.II via the VM image (release 9.1.1). I am having
trouble reading the .msh file. I even tried running running step 49 and
received this error:
----------------------------------------------------
Exception on processing:
--------------------------------------------------------
An error occurred in line <1408> of file
</home/ubuntu/deal.II/dealii/source/grid/grid_in.cc> in function
void dealii::GridIn<dim, spacedim>::read_msh(std::istream&) [with int
dim = 2; int spacedim = 2; std::istream = std::basic_istream<char>]
The violated condition was:
in
Additional information:
An input/output error has occurred. There are a number of reasons why
this may be happening, both for reading and writing operations.
If this happens during an operation that tries to read data: First, you may
be trying to read from a file that doesn't exist or that is not readable
given its file permissions. Second, deal.II uses this error at times if it
tries to read information from a file but where the information in the file
does not correspond to the expected format. An example would be a truncated
file, or a mesh file that contains not only sections that describe the
vertices and cells, but also sections for additional data that deal.II does
not understand.
If this happens during an operation that tries to write data: you may be
trying to write to a file to which file or directory permissions do not
allow you to write. A typical example is where you specify an output file
in a directory that does not exist.
--------------------------------------------------------
Aborting!
----------------------------------------------------
I checked the detailed.log file and found DEAL_II_WITH_GMSH is OFF.
I also tried to install the latest version of gmsh (4.7.1) and ran the
cmake command for deal ii installation with -DGMSH_DIR=/path/to/gmsh added
to it. But it gives me warning
CMake Warning:
Manually-specified variables were not used by the project:
GMSH_DIR
Can someone please suggest if I am missing anything here?
--
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