I am trying to run this code that should open the webcam and take frames.
However, I am getting this error. Cannot open source file "opencv2/highgui/highgui.hpp"
I download opencv and VS15, I followed online guides on how to install opencv 3.1 on VS15 using CMAKE.
However, It gives the error I mentioned above along side some more errors
Cannot open source file "opencv2/highgui/highgui.hpp"
Cannot open source file "opencv2/imgproc/imgproc.hpp"
I am really new to this and it got me frustrated. Any help will be apreciated. Thanks in advance!
I copied the files into the project folder and just included the file names rather than the filepath, then I used tools -> NuGet package manager -> NuGet Package Console and entered
PM > Install-Package opencvdefault
If you use OpenCV on Windows, VS, I think you had better download opencv.exe and extract and compile automatically.
Add this dll and header file to the VS path. And add opencv path to the system environment, then restart Windows
Related
When building the Windows C++ version of quantlib 1.9.1, I get this error of missing payoffs.hpp. When I browse to the directories, I see payoffs.cpp, but not payoffs.hpp:
Severity Code Description Project File Line Suppression State
Error C1083 Cannot open include file: 'ql/instruments/payoffs.hpp': No such file or directory FittedBondCurve c:\users\administrator\google drive\quantlib-1.9.1\ql\cashflows\conundrumpricer.hpp 27
I also get this for #include <ql/instruments/swap.hpp> [and possibly others]. I am able to build the windows quantlib library ok. Just not the examples.
I just checked the QuantLib 1.9.1 release available from the project downloads (did you get your version from there?) and the files you're looking for are contained in the release zip and tarball. Also, it's pretty weird that you could compile the library without them, so I'd double check if they're there. If they really aren't—well, hard to know how they got displaced; anyway, you can download the release again and replace them. If that doesn't fix the problem (or if they're already there after all), it's possible that you have to fix the include path for the example you're trying to compile. Does it include the QuantLib directory?
im just starting out with FreeSwitch, i downloaded via git, and am trying to build in VS
all i need i believe are the dlls of mod_managed, as my goal is to manage FS via .net
but i get 248 errors, most look something like this:
Error 5 error C1083: Cannot open source file: '....\jpeg-8d\jaricom.c': No such file or directory D:\FreeSwitch\freeswitch\libs\win32\libjpeg\c1 libjpeg
btw, i searched windows and cannot find any such file anywhere on my pc.
I tried
cleaning the solution first, but it did not help
moving the file to a path without spaces
downloading with autocrlf=false
building on another machine
but none of these steps helped
anybody have any idea?
if i can just download the dlls i need, i wouldnt mind skipping this step altogether
environment
win 8 64bit
visual studio 2012
thanks a million
The libjpeg sources are not in the git sources but are normally downloaded during the build process. If you build the entire solution that should not be a problem since it has the project dependencies set: libjpeg.2012 depends on Download libjpg.2012, which means the latter gets built before the first. All Download libjpg.2012 is run a cscript which downloads libjpeg from http://www.ijg.org/files/jpegsrc.v8d.tar.gz (see inside the project file).
So if you do not have the sources, either you are building incorrectly (not in VS for instance, or with a broken solution file) or the download script is broken. In that case, you should inspect the output: I assume it shows errors when it can not download the libs.
I'm trying to compile the qtdensity example from the RInside examples folder, using Qt, Windows 7, R 32bit.
I have followed all the instructions posted online on how to set up these tools since my ultimate goal is to develop a C++/R application in Qt.
When I try to build the project I get the following error:
E:\dev\R-2.15.2\library\RInside\lib\i386\libRInside.a:-1: error: file not recognized: File truncated
Indeed, the libRInside.a file is empty as well as the libRInside.dll file in the same folder.
I have installed, uninstalled, installed again the RInside package using the install.packages("RInside", type="source") command.
The same problem does not occur with the Rcpp package, installed the same way.
I would greatly appreciate any insights on this. I've recently started with C++ and as a result it has taken me a lot of effort to set up everything so far.
Thank you!
Laura
Not sure what I did wrong but I solved it by copy-paste the same files from the archive available at the CRAN page of RInside
I have the latest Qt SDK. I'm trying to configure it for static building with VS2010 (dynamic linking works fine) I have it at this location: C:\QtSDK\Desktop\Qt\4.8.0\msvc2010
When I go there with the VS2010 command prompt and try to run configure -static, or configure -static I get some output but in the end it fails with
Generating Makefiles...
WARNING: c:\QtSDK\Desktop\Qt\4.8.0\msvc2010\projects.pro:44: Unable to find file
for inclusion src\src.pro
WARNING: c:\QtSDK\Desktop\Qt\4.8.0\msvc2010\projects.pro:46: Unable to find file
for inclusion doc\doc.pri
Reading C:/QtSDK/Desktop/Qt/4.8.0/msvc2010/tools
Reading C:/QtSDK/Desktop/Qt/4.8.0/msvc2010/translations/translations.pro
Reading C:/QtSDK/Desktop/Qt/4.8.0/msvc2010/examples
Reading C:/QtSDK/Desktop/Qt/4.8.0/msvc2010/demos
Qmake failed, return code 3
Please help
I downloaded the source zip file instead of trying to work with what came in the SDK and it's working now. Just download the source from here, unzip it, and run the configure.exe in the unzipped folder. My guess (although I have inspected this) is that there's missing source files or other resources in the SDK version.
I have a freshly downloaded Visual Studio C++ 2010 Express and wxWidgets 2.9.1. The build folder under wx\build\msw has solution files for VC++ versions 6 through 9 (2008).
I tried to open the latest solution, wx_vc9.sln. It converted all the projects with a bunch of warnings. When I try to build every project gets the error:
C:\Program Files
(x86)\MSBuild\Microsoft.Cpp\v4.0\Microsoft.CppCommon.targets(151,5):
error MSB6001: Invalid command line
switch for "cmd.exe". The path is not
of a legal form.
Trying to open the previous version of the solution, wx_vc8.sln, generates the same conversion warnings and the same build errors.
I Googled for some hints and found a suggestion to start with the .dsw file. I opened wx.dsw and it generated an error for each of the project files:
D:\3rdParty\wx\build\msw\wx_wxregex.dsp
: error : Project upgrade failed.
Finally in desperation I tried nmake /f makefile.vc and was greeted with yet another error:
NMAKE : fatal error U1077: 'cl' :
return code '0xc0000135'
Anybody have any hints? Thanks.
There are two ways of solving this, firstly if you update to a more recent version of the wxWidgets SVN trunk this is fixed (and so it will be fixed in 2.9.2 when it is released). If you don't want to work from trunk of wait for 2.9.2 then if you do a find and replace over all .vcxproj files and replace
>$(INTDIR) $(OUTDIR);%(AdditionalInputs)
with
>%(FullPath);%(AdditionalInputs)
it should then compile fine.
For future reference, trust me people, avoid all nonsense and start up your Visual Studio 2010 Command Prompt and navigate to [wxwidgets directory]\build\msw
Then compile using the makefile with the following command :
nmake -f makefile.vc BUILD=release MONOLITHIC=0 SHARED=0 UNICODE=1
Of course change the options as needed.
You will be saving a lot of trouble this way, this is the way I did.
The Key to Compilation using Visual C++ 2010 Express and wxWidgets 2.9.3 is to keep Pressing F7 Again-and-Again-and-again.... till you you get '0 Failed' Message below. Because many Projects have dependencies which are not satisfied immediately, so it is necessary to keep compiling with 'F7' till all are satisfied.
Download wxWidgets. I downloaded the .7-Zip File (only 12 MB ! ), and installed it at C:\wxWidgets The Structure should be like so that you see the following Folders like C:\wxWidgets\lib and C:\wxWidgets\build etc etc...
Basically the process should be to go to C:\wxWidgets\build\msw , and open wx_vc9 Solution File for VC-2008, and convert it to VC-2010 when asked. Then Choose 'DLL-Release Win32' on Top, and Press F7. Wait for Compilation to take place and see the Message. Then keep Pressing F7 again and again till you get '0 Failed' Message below. Then you would want to Compile 'DLL-Debug' Release in the same manner.
The compiled DLL Files can then be found at C:\wxWidgets\lib\vc_dll. Now, To Add vc_dll Folder to your PATH, Right-Click on My-Computer -> Properties -> Advanced System Settings -> Environment-Variables -> User-Variables. Search for 'Path' -> 'Edit', and then Just Append ;C:\wxWidgets\lib\vc_dll to the End.
This makes running your compiled Application easier, as your .EXE can now easily find DLLs.
When you are packaging, then you obviously need to bundle specific Release-DLL'S along.
Then you can compile the Samples located at C:\wxWidgets\samples.
I just go to individual Project Folder, like for e.g. C:\wxWidgets\samples\drawing, and Open drawing_vc9 Project, then Convert it as Prompted, and then hit F7 to create Release Version. Now if you go inside C:\wxWidgets\samples\drawing\vc_mswudll\ Folder, you have your 'drawing.exe' ready-to-be-run !
Have fun !
Use the wx.dsw, took me a while to finally get it but it'll build fine after that. I also suggest using one of the sample projects such as 'minimal' as the base and just fix all the config paths to match what you want to build (as manually setting up I encountered issues).
If you already used the wx_vc9 (like you said you did) you are probably best off just deleting all of wx and restarting with it and using wx.dsw like I said above.