calllib issue... library not found...

2014 1 26
4 个回答
回答已采纳
更新时间：2024 10 21
15 次查看（30 天）

0 个投票

For some reason I have an error that says "Error using calllib Library was not found" yet I know it is in the MATLAB generals file, I even added the path manually to ensure my files are going there and it still can not find it. I was hoping to have some help if someone knows what the issue is, they would let me know what is up. Thanks!

5 个评论
显示 3更早的评论 隐藏 3更早的评论

Image Analyst
Image Analyst 2014-1-26
Hard to say without seeing any code, don't you think? What if you specify the full file name with fullfile() before you call loadlibrary()?
Chris E.
Chris E. 2014-1-27
Hello, I'm sorry if it did not make since or something, I had two responses that said essentially, need more info, but it was the matlab example, found here:
http://www.mathworks.com/help/matlab/ref/calllib.html#btgwu6s
if ~libisloaded('shrlibsample')
addpath(fullfile(matlabroot,'extern','examples','shrlib'))
loadlibrary('shrlibsample')
end
libfunctionsview shrlibsample
struct.p1 = 4; struct.p2 = 7.3; struct.p3 = -290;
[res,st] = calllib('shrlibsample','addStructByRef',struct);
res
For whatever reason I can not seem to use calllib. Still says the library is not found. I don't know why... That is why I was seeing if it was something someone else ran into.
Walter Roberson
Walter Roberson 2014-1-27
You might have to compile the example first.
If you
cd(fullfile(matlabroot,'extern','examples','shrlib'))
then what does
ls
report as being present? And are you using 32 bit MATLAB or 64 bit MATLAB? With which operating system?
Chris E.
Chris E. 2014-1-27
Thanks I think that did it (somehow)... I'm using 64 but now it is not running into the same issue. thanks
Chris Bresee
Chris Bresee 2022-1-5
编辑：Chris Bresee 2022-1-5
Just for future people who may have a similar problem: Try adding the directory to your Windows environment system variables, either directly or in matlab, with: setenv('LibraryName', 'c:\Your\Install\Path\Library')

请先登录，再进行评论。

请先登录，再回答此问题。

 采纳的回答

Walter Roberson
Walter Roberson 2014-1-26

0 个投票

You are generating 32 bit libraries and trying to use them on a 64 bit MATLAB. Or the moon is still in the 6th house and Jupiter has not quite aligned with Mars. Take your pick; one is as good as another with the information you gave us.

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

Chris E.
Chris E. 2014-1-27
Thanks for letting me know, but the code was the example of MATLAB's calllib. it just is not working. I was seeing if someone else ran into this problem. Sorry if it was not enough info, but it was the simple example that MATLAB website gave. However Jupiter was not quite lined up with mars, so it could of been that.....

请先登录，再进行评论。

更多回答（3 个）

Image Analyst
Image Analyst 2014-1-27

0 个投票

Worked for me. Can you go here C:\Program Files\MATLAB\R2013a\extern\examples\shrlib and tell us what files you see? Change the version number if you need to, and change Program Files to Program Files (x86) if you have a 64 bit system but are running 32 bit MATLAB. You should see shrlibsample.mexw64, shrlibsample.c, and shrlibsample.h.
Chris Bresee
Chris Bresee 2022-1-5
编辑：Chris Bresee 2022-1-5

0 个投票

I had a similar problem. I was adding .dll and .lib files to my matlab path, but had forgotten to add them to my Windows path. Try: setenv('CEDS64ML', 'c:\Your\Install\Path\CEDS64ML');
parisa
parisa 2024-10-19

0 个投票

Error using calllib
Library was not found

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

Image Analyst
Image Analyst 2024-10-21
This is not an Answer. If you have any questions, then ask them, and attach your data and code to read it in with the paperclip icon after you read this:
TUTORIAL: How to ask a question (on Answers) and get a fast answer

请先登录，再进行评论。

类别

在 帮助中心 和 File Exchange 中查找有关 Programming 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by