On 7/7/22 09:46, ME20D503 NEWTON wrote:
*** Caution: EXTERNAL Sender ***
Dear all,
i am getting error while running a code based on step-44.
i am not able to understand the error output,
can anyone please help me out ?
ME20D503 NEWTON: As I think others have already pointed out, many error
messages in deal.II are quite detailed. This one has three paragraphs:
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.
Which part of this is not clear to you? The error is produced by a function
called 'block_read', so the second paragraph clearly applies. What could we
help you with that goes beyond what the error message already says?
Best
WB
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Wolfgang Bangerth email: [email protected]
www: http://www.math.colostate.edu/~bangerth/
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