I've been testing some stuff in Visual Studio after some time not working with VS, And I ran into a problem where I include a file and I get this error:
Cannot open include file 'spdlog/spdlog.h': No such file or directory
but I have the right path, in Project settings I have the right path set as an additional Include directory and the file is there. but the Thing is, when I take the file and move it one directory up and change the include path so that it now points one directory up (where the file is now) it suddenly works. Example:
File Path: Project/lib/spdlog/spdlog.h
Include directory: Project/lib
this Works
File Path: Project/lib/spdlog/spdlog/spdlog.h
Include directory: Project/lib/spdlog
This doesn't work
I don't want to include the lib directory since I have more libraries in it and it would just mess some stuff up, so I want to include every library (like spdlog for instance) separately. Does anyone know what might be causing the issue ? Also the error isn't shown when writing the code only when I try to build the Project.
Maybe you are missing spdlog library.
I suggest you check out this issue.
For debian-like distros you should be able to download it via apt-get: apt-get install libspdlog-dev.
Related
I just started using VSCode on linux Ubuntu environment and for past one day trying to include some header files from a sub-Directory (the project screen shot is shown below).
I have tired adding the header file path in include path but showing error.(Image below)
I also tired by provided complete path e.g. /home/user/Work/Cpp_Test_Project/OpenFace/FaceAnalyser/include/ still it couldn't find the header file.
Also, If I try to include the header with local path e.g.
#include <OpenFace/LandmarkDetector/LandmarkCoreIncludes.h
then all the internally linked header file doesn't work.
any help will be highly appreciated.
The c_cpp_properties.json file is for configuring IntelliSense. The compiler you are using does not read from this file, so you will need to configure the include path for that separately. From what you have posted, it is unclear how you have set up your build.
I created a project, which includes MiXiM.
The problem is that when I build the project I get this error:
/MiXiM/src/base/connectionManager/ConnectionManagerAccess.h:40:26: fatal error: BaseMobility.h: No such file or directory
I don't understand. The problem seems related to the MiXiM library but if I close my project, I can successfully compile every MiXiM example.
Is it a bug or am I doing smomething wrong?
You are probably trying to build MiXiM with a recent version of OMNeT++ (5.0 or later?). Since 5.0 OMNeT++ does NOT add all directories in the source tree as an include dir one by one. Only the root of the source folder is added. It means that ALL files that include other headers from a directory other than the current one MUST be prefixed with the path relative to the source folder root. Adding all directories to the include path was a very bad idea and was removed from OMNeT 5.
This leads to the next question: Why are you using MiXiM which is abandoned long ago and most of its functionality was merged into INET 3.x? Why not INET?
I don't know,if I can help you or not;but I had the same experience.
If you try to execute an old project in MIXIM with different version,you get this error.
For example,in MIXIM-2.2.1 there is BaseMobility;but in MIXIM-2.3 there is MobilityBase.Therefore,If your project was written in MIXIM-2.2.1,you should change it according to MIXIM-2.3.
I am a "very" beginner of OpenCV. I just downloaded it for my Windows and extracted.
I have read this post: http://opencv-srf.blogspot.ro/2011/09/capturing-images-videos.html about how to read webcam and I copied and pasted the code in a C++ file I created in "include" folder of OpenCV extracted archive.
When I try to run the program I get this error: Error in: /opencv/build/include/opencv2/highgui/highgui.hpp - opencv2/highgui.hpp: No such file or directory.
What should I do?
Thank you all!
EDIT
I opened: "/opencv/build/include/opencv2/highgui/highgui.hpp" and I can see that it includes this path "opencv2/highgui.hpp". If I change it to "../highgui.hpp" it works but I get other errors like this for other files... What should I do?
The problem is that you are not supposed to create your "cpp" file in the OpenCV "include" directory. You need to create it in a separate directory and then add OpenCV "include" as additional include directory for the compilation step.
The way to achieve this depends on your C++ development environment. If you are using Visual Studio, then you need to open project property pages, go to "C/C++ -> General" and add the path to OpenCV "include" directory to "Additional Include Directories". In case of some other compiler/IDE, you can find out how to do this by reading the corresponding documentation.
I am trying to compile an existing C++ project but get this error:
fatal error C1083: Cannot open include file: 'occi.h': No such file or directory
What I did is I went to this link:
http://www.oracle.com/technetwork/topics/winsoft-085727.html
and downloaded the first (basic) package.
Then unzipped the folder and modified PATH variable like this:
C:\Program Files\Atmel\sam-ba_2.12\drv\;C:\Program Files\Atmel\sam-ba_2.12;C:\Program Files\ATMEL Corporation\AT91-ISP v1.4\Library;C:\MSYS\1.0\bin;C:\MSYS\1.0\local\bin;C:\cygnus\cygwin-b20\H-i586-cygwin32\bin;D:\instantclient_12_1
last being path to oracle.
But I still get the error, can someone help?
PS I noticed in my project there are lines like:
#include "occi.h"
Maybe it is because of this?
The basic package isn't enough. Its description says "All files required to run OCI, OCCI, and JDBC-OCI application" (emphasis added); with just that you can run an OCI program, but you can't compile one. You need to download other instant client components. Specifically for the occi.h header you need the fifth file listed:
*Instant Client Package - SDK: Additional header files and an example makefile for developing Oracle applications with Instant Client
If you download and unzip that in the same place you unzipped the basic package, your instant client directory will gain an sdk folder, which includes all the OCI header files.
You'll then need to compile with -I D:\instantclient_12_1\sdk\include so your compiler knows where to look for the occi.h and other header files. You may also need -L to tell it where to find the Oracle libraries; presumably you already have -lclntsh and/or -locci, which refer to libraries you should have already from the basic package.
I'm a complete beginner with Code::Blocks and SQLite, and have some basic knowledge with C++. I'm currently using Ubuntu 11.04.
I have downloaded SQLite Amalgamation here. When I extracted the zip file, there are four files inside: shell.c, sqlite3.c, sqlite3.h, and sqlite3ext.h. If I simply add those files to a (for example) a console project, it gives out an error: the .c's of the downloaded sqlite each have their own main function. Removing those from the project, the errors are gone and I can call #include "sqlite3.h". I am trying to follow this, and tried the first two lines of code from here and it gives out an error: undefined reference to sqlite3_open.
I think adding those .h's directly to a console project isn't the right way to use it, though I'm not sure.
How exactly should I use those? What should I do to use those for my C++ program?
Any help is greatly appreciated. :)
EDIT: I also tried to create a .a file of those sqlite files by following this. When I try it, it gives out an error: cannot find -lsqlite.
I got it! Though there was something that I did that caused problems.. I forget to remove the .a file that I added at Project > Build Options > Linker Settings earlier, which caused problems..
Here are the steps I made to add SQLite: (for those that might have the same problems)
Copy the files extracted from the SQLite Amalgamation to the directory of the project.
Add the sqlite files (Project > Add Files) EXCEPT the shell.c (it is the one that causes the multiple function error)
Compile it (Yes, a simple Ctrl+f9).
here are errors: undefined reference to pthread_mutexattr..... These are fixed by going to Project > Build Options > Highlight 'the Project Name' above Debug and Release at the top left corner > Linker settings, and adding "-lpthread" (without quotes) to Other linker options:.
Some more errors are found: undefined reference to dlopen, dlerror..... Add '"-ldl"' just below the '"-lpthread"' added earlier.
DONE :)
I didn't find a complete answer for Windows as a beginner, and at the beginning it is very painful to understand everything. So here's what worked for me.
Download the SQlite Amalgamation file.
Open Code::Blocks -> New Project -> Choose static library
Unzip the file you have downloaded and copy the folder/contents to your new project directory. Add all the files to the project and build the project.
You will find a ProjectName.a file in the bin/Debug or bin/Release directory. Copy that file to your actual SQlite project directory.
Go to Code::Blocks Project->Build options. Select 'Linker Settings' tab and add the path to the .a file. Don't close it yet!!!
In 'Search Directories' tab, select the 'Compiler' tab, add the path to the Amalgamation header files, or copy the header files to your directory (you can add the header files to your project) and in the 'Linker' tab add the path to the .a file
Now Compile!!! Hopefully this will run
That is all, I wish it'll save some searching time for another noob
You will need to compile the sqlite code first, and then just #include "sqlite3.h" into your project where you need it.
UPD:
Try this:
Download this package from sqlite site and extract it somewhere, say, into a folder called "sqlite". Open terminal, and go into this folder. Inside of it, run
./configure
sudo make
sudo make install
and see what happens. It should build itself automatically. Consult the README file that is inside the archive too.