I've got an issue with OpenCV 3.0.0.
I have built it from sources with Cmake and Visual Studio 2013, because I needed to add a loading method from a "string" in the "StatModel" class. To do so, I edited the "ml.hpp" file (where there is already a "load" method).
I'm trying to use the library in a C++/CLI project. Everything is fine with classes like "Mat" for exemple, but when I use "SVM" in my code, Visual Studio show me this error:
IntelliSense: identifier "SVM" undefined
The funny thing is that I can access to the definition of it with a right-click and get a defined identifier with cv::ml::SVM.
The tutorial I followed to link OpenCV libraries in my project can be seen here.
I don't know what is wrong with it and didn't found anything related, perhaps I miss something related to my edit?
Can you help me please?
as of opencv3.0, you will have to use:
Ptr<ml::SVM> svm = ml::SVM::create();
(no, you can't use a 'stack instance, like SVM svm; anymore. also note the additional namespace)
(( also, if all you got is a youtube video, you basically got nothing ))
Related
I'm trying to compile a c++ mex function that I created according to the specifications given by mathworks here (Create a C++ MEX Source File). However, after following the steps of the answer in this thread to link Eclipse 4.4.2 and Matlab R2015a in a linux enviroment (old but the only one I've found about it), I get the following error:
undefined reference to `get_function_ptr' mpi_pevd_mex_f line 79, external location: C:\Program Files\MATLAB\R2021a\extern\include\MatlabDataArray\detail\ExceptionHelpers.hpp C/C++ Problem
I don't know what else is missing. I've been trying to find a solution, but nothing useful so far.
Thank you for your help.
I have found the problem. Apparently, I needed to add additional libraries to those detailed in most of the posts related to MEX files, i.e. libmex/ libmat/libmx.
Making use of the verbose mode in Matlab (mex -v MexFunction.cpp), I realized that these libraries were missing: libmwlapack, m, libmwblas, libMatlabEngine, libMatlabDataArray. After adding them, the error disappeared.
I'm using CLion and I need to get some data from the Kinect, but when it comes to #include <Kinect.h> I get the following error:
In file included from C:/PROGRA~1/MICROS~2/Kinect/V2D305~1.0_1/inc/Kinect.h:547,
from C:\Users\fredd\CLionProjects\3D_avatar\main.cpp:19:
C:/PROGRA~1/MICROS~2/Kinect/V2D305~1.0_1/inc/Kinect.INPC.h:109:13: error: '_Out_' has not been declared
_Out_ WAITABLE_HANDLE *waitableHandle) = 0;
^~~~~
And an endless list of similar errors. I think I miss some kind of library that defines this data format, but I really don't know (if that's the problem) which one. I've searched all over the internet and googled for about 3 hours without any result.
How can I solve the error?
Also, is there a better way to make Kinect works with CLion?
I've managed to understand what was going on: MinGW couldn't compile SAL annotations, so I had to switch compiler to MSVC, bundled with Visual Studio. Also, I had to link MatLab with my project since there's no library (except for libfreenect2, which has driven me mad) that can handle a Kinect v2.
This is a strange error. When I run my code, I had to update the location of ulldiv.asm via
implementation of unsigned long long division
the line in question matched exactly the one used in the link:http://objectmix.com/c/68732-dynamic-memory-allocation-c.html
tim = (__time64_t)((nt_time.ft_scalar - EPOCH_BIAS) / 10000000i64);
Anyways, the first link gave me the right answer and I relocated ulldiv.asm to C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\crt\src\intel\ulldiv.asm.
Now when I run my code this line gives me trouble
double NOISE_SIGMA = NOISE_DENSITY*sqrt(SYS_CLK_FREQ);
the sqrt function becomes undefined (?). The debugger stops and asks me for the location of sqrt.asm.
You need to find sqrt.asm to view the source for the current call stack frame
This is a similar error that I found in a German website: http://www.c-plusplus.de/forum/324725-full
but it doesn't seem to get resolved there.
I don't understand what's going on. If you need more information regarding the code, let me know. Thank you in advance.
If it makes any difference I step through my code using F11.
While most of the source files for the Visual C++ libraries are included with the Visual Studio installation, some files are not included. Notably, the sources for the math library are not included.
The fact that the debugger cannot automatically find ulldiv.asm is a bug; this has been fixed in Visual Studio "14" (I think the fix was present in CTP1; I know for sure the fix is present in CTP3 which was released today).
I've been using CodeBlocks for a while now as I make a little hobby game in C++. Come across a snag whereby I want to see the current values of all the data in my arrays at any point, CodeBlocks doesn't seem to have that ability. Have been told by workmates (professional game programmers) that I should use Visual Studio.
Have previously used Visual Studio C# in the past, was very handy being able to use a break point while debugging other small games I've made and then going through the big list of watches to look at particular array values or any other value from within my program at that time.
So I've created a new blank project in VC2010 and added all my code files to the project. I know I have to link libraries and such, have spent the last few hours trying to figure out how to do that. But even after all that is done, I'm still getting link errors (I think)
First problem is this:
fatal error C1083: Cannot open include file: 'gl\glext.h': No such file or directory
So I commented it out to see how much further I could get.
Eventually had to add to my main.cpp file
#pragma comment (lib, "opengl32.lib")
#pragma comment (lib, "glu32.lib")
#pragma comment (lib, "libsoil.lib")
I ended up copying the libsoil.a file to C:\Program Files\Microsoft Visual Studio 10.0\VC\lib and renaming it to libsoil.lib (as stated on the authors's website http://www.lonesock.net/soil.html)
So now I get this when I compile
1>libsoil.lib(stb_image_aug.o) : error LNK2019: unresolved external symbol ___chkstk referenced in function _stbi_zlib_decode_noheader_buffer
1>libsoil.lib(image_helper.o) : error LNK2019: unresolved external symbol _sqrtf referenced in function _RGBE_to_RGBdivA2
1>C:\Repositories\HappyHelperPuppy\CppVer\HappyHelperPuppy\Debug\HappyHelperPuppy.exe : fatal error LNK1120: 2 unresolved externals
..And I have no idea what to do next. I've spent ages in Google and trawling through forums and I really just don't know what to do.
So as a last ditch effort I'm zipping up all my code and project files and letting anyone whos interested to have a look and see if they can find a solution. It's not like this game will have any secret feature I want to keep under wraps, and all the art is from an open game competition from ages ago ("TIGSource Assembly" for those who know what it is) or from DeviantArt (just wanted something to look at while I made it, wouldn't be final game release art)
The code/game can be found here http://users.on.net/~infernoraven/hhp_busted_code.zip (27mb)
The SOIL library should be in the main directory in its own soil.zip
Any help would be good, but I'm just getting really depressed as I seem to spend most of my time either fighting with the IDE/Compilers or some annoying syntax problem.
The CodeBlocks project files should be in there also, so if you..
un-comment out glext.h
link to SOIL
link to libopengl32 and libglu32
Hopefully it'll compile for you. Otherwise there should be an HappyHelperPuppy.exe that's precompiled by CodeBlocks that should hopefully run and give you an idea of what is suppose to happen
In the SOIL package there are a number of project files for visual studio. When I try to load up the VC9 one and convert it to VC10, I get conversion errors.
Conversion Report - SOIL.vcproj:
Converting project file 'C:\Documents and Settings\Administrator\My Documents\Downloads\soil\Simple OpenGL Image Library\projects\VC9\SOIL.vcproj'.
Failed to upgrade platform 'x64'. Please make sure you have it installed under '%vctargetspath%\platforms\x64'
VCWebServiceProxyGeneratorTool is no longer supported. The tool has been removed from your project settings.
Attribute 'Detect64BitPortabilityProblems' of 'VCCLCompilerTool' is not supported in this version and has been removed during conversion.
Attribute 'Detect64BitPortabilityProblems' of 'VCCLCompilerTool' is not supported in this version and has been removed during conversion.
Failed to upgrade 'Debug|x64'. Please make sure you have the corresponding platform installed under '%vctargetspath%\platforms\x64'
The project configuration dimension name/value "(Platform, Win32)" was not found in the project manifest.
Project upgrade failed.
If I use the VC8 project file and try to upgrade that, a libSOIL.lib file is generated by VC2010 throws an error saying "Unable to start program ... \SOIL.lib The specified file is an unrecognized or unsupported binary format"
But the author on his site states that I can simply rename the libSOIL.a file to a libSOIL.lib file and it should work.
The soil.zip file contains some .sln files under the folder projects. Use the proper .sln file to build the library, then link your project against this library. It worked fine on my side.
i have converted a C++ library to managed and get the following error on this code line:
std::ifstream fin(filename, std::ifstream::in);
Errors:
Error 30 error LNK2022: metadata operation failed (80131195) : Custom attributes are not consistent: (0x0c0003b5). C:\Users\Freeman\Documents\Visual Studio 2010\Projects\testsharp1\cpp1\MSVCMRTD.lib(locale0_implib.obj)
Error 32 error LNK2034: metadata inconsistent with COFF symbol table: symbol '??0_Container_base12#std##$$FQAE#XZ' (06000493) has inconsistent metadata with (0A000075) in MSVCMRTD.lib(locale0_implib.obj) C:\Users\Freeman\Documents\Visual Studio 2010\Projects\testsharp1\cpp1\LINK
Error 59 error LNK2034: metadata inconsistent with COFF symbol table: symbol '?memcpy##$$J0YAPAXPAXPBXI#Z' (060004DD) has inconsistent metadata with (0A0003E3) in MSVCMRTD.lib(locale0_implib.obj) C:\Users\Freeman\Documents\Visual Studio 2010\Projects\testsharp1\cpp1\LINK
Error 60 error LNK1255: link failed because of metadata errors C:\Users\Freeman\Documents\Visual Studio 2010\Projects\testsharp1\cpp1\LINK
How to fix that or how to change that code line without having to change the rest of the code?
Essentially, you're compiling your managed code which includes the <fstream> header. That means that all declarations from <fstream> are compiled as if they're managed, too. Yet the CRT DLL contains unmanaged versions of <fstream>.
At link time, this is detected when the import lib MSVCMRTD.lib contains the unmanaged std::_Container_base class, but your .obj files need a managed std::_Container_base.
(The _C tells us it's an implementation helper class).
I know this question is old, but after 1 week struggling to solve this I feel committed to post the solution I found to whoever could be fighting with a similar error.
In my case I'd two projects, one unmanaged with std's all over the place (list, vectors and queues, this is a project which should work on linux too so I cannot use .net collections), and pure standard C++ code, on the second project I create a managed project to wrap this classes to be used in .net projects, I was using Visual Studio 2010, trying to use framework 2.0, unfortunatelly VS 2010 does not have a nice support to VC++, and I tried everything to force it to use 2.0, without success, everytime I compiled I got the same annoying message "Inconsistent blah".
I installed VS 2008, ported the projects to 2008 and voila! everything worked in 10 mins, I spend 1 week trying to solve this in VS 2010 and 2008 did the trick.
I hope this might save a lot of hours trying to solve something that appears to be unsolvable on VS 2010.