Nick,
You didn't declare print_mesh_info and you need to replace
template <int dim>
void print_mesh_info(const Triangulation<dim>& triangulation, const
std::string& filename) {...}
by
template <int dim>
void ElasticProblem<dim>::print_mesh_info(const Triangulation<dim>&
triangulation, const std::string& filename) {...}
You have the same two problems with grid_1(). These are C++ problems
not deal.II, so I would advise you to read a few tutorials/books on
C++. I cannot debug your entire code for you.
Best,
Bruno
Le ven. 6 nov. 2020 à 03:04, Nick Wang <wjs641731...@gmail.com> a écrit :
>
> Thanks, Bruno
> I try to end the fuction print_mesh_info() at line 107 and re-run the step
> again, while it still errors that i can't understand.
>
> 2>step-8.obj: error LNK2019: Unresolved external symbol "private: void
> __cdecl Step8::ElasticProblem<2>::print_mesh_info(void)"
> (?print_mesh_info@?$ElasticProblem@$01@Step8@@AEAAXXZ) , The symbol is
> referenced in the function "public: void __cdecl
> Step8::ElasticProblem<2>::run(void)"
> (?run@?$ElasticProblem@$01@Step8@@QEAAXXZ) 2>D:\dealii-9.2.
> 0\dealii-9.2.0\examples\step-8d\Debug\step-8.exe: fatal error LNK1120: 1
> unresolved external command
>
> Nick
> 在2020年11月6日星期五 UTC+8 上午6:14:01<bruno.t...@gmail.com> 写道：
>>
>> Hi,
>>
>> The function print_mesh_info() ends at line 269. It should end at line 107.
>>
>> Best,
>>
>> Bruno
>>
>> On Wednesday, November 4, 2020 at 9:40:57 PM UTC-5 wjs641...@gmail.com wrote:
>>>
>>> Okay, I re-run the program I wrote
>>> vs told me that ,what that mean?
>>>
>>> 2>step-8.obj: error LNK2019: Unresolved external symbol "public: void
>>> __cdecl Step8::ElasticProblem<2>::run(void)"
>>> (?run@?$ElasticProblem@$01@Step8@@QEAAXXZ) , The symbol is quoted in the
>>> function main
>>> 2>D:\dealii-9.2.0\dealii-9.2.0\examples\step-8a\Debug\step-8.exe: fatal
>>> error LNK1120: 1 unresolved external command
>>> 在2020年11月4日星期三 UTC+8 上午11:09:17<Wolfgang Bangerth> 写道：
>>>>
>>>> On 11/3/20 7:33 PM, Nick Wang wrote:
>>>> >
>>>> > After I studied and understood the tutorials of step-8 and step-49. I
>>>> > tried
>>>> > to use step-49 to import external grids to to calculate the force
>>>> > condition
>>>> > and stress analysis,
>>>> > So I modified the statement of step8 grid generation,
>>>> > while failed...
>>>> > Did I make a mistake or are there other ways to finish the force
>>>> > analysis
>>>> > from external grids?
>>>>
>>>> Help us understand what the error message is that you get. You already
>>>> have it
>>>> on your screen, but we would need to download your program, put it
>>>> somewhere,
>>>> compile it, maybe run it. It would take someone a couple of minutes to do
>>>> that
>>>> -- time we wouldn't have for answering someone else's problems.
>>>>
>>>> Best
>>>> WB
>>>>
>>>> --
>>>> ------------------------------------------------------------------------
>>>> Wolfgang Bangerth email: bang...@colostate.edu
>>>> www: http://www.math.colostate.edu/~bangerth/
>>>>
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