I recently changed from Microsoft Visual Studio Community 2015 (which worked fine) to the 2017 version, and at first, it was working fine. I save my projects in C:/_Dev/C++/My projects/. However, after using 2017 for less than 3 hours, I now get this message whenever I try to run a project:
"This project is out of date:
[insert file name]-Debug Win32"
Then I have the option to build it or not, and building does still work, but I don't like that something is going slightly wrong.
Note that since I got this error, I went back to my first C++ program to see if it now displays the message too, which it does. The code is as follows:
#include <iostream>
using namespace std;
void main()
{
cout << "Hello World!";
system("pause");
}
...So I'm fairly confident it's not my code causing the issue. It's been a couple of days since I started getting the error, and I've tried re-installing VSC 2017, deleting the *tlog files, cleaning, and rebuilding the project. I have not moved the project to a new file directory since its creation.
Does anyone know if this will turn into a big problem, or is it just something I have to put up with? If anyone knows more, I'd appreciate the advice.
Related
I'm just trying to print hello world using C++ but all I get is build errors. The error list shows 412 errors and they're mostly "Cannot open source file" followed by a file name that I haven't heard of.
It also says the WindowsSDKDir property is not defined and the solution I found was to repair visual studio when I looked up this problem. I completed repairing visual studio and I have the C++ selected in the workloads.
Even when I select "Console App" during initial set up it'll end up giving me the same errors even though that is supposed to set up a basic environment for Hello World.
My code is simply just to print out hello world.
#include <iostream>
void output();
int main()
{
output();
}
void output()
{
std::cout << "Hello World!" << std::endl;
}
So I just uninstalled Visual Studio completely and then reinstalled it. I realized I could have just modified it using the installer, but basically after selecting the C++ workload I made sure every box was selected on the right hand side. I don't know if I needed it all but I just installed everything to be sure and it finally worked.
Installed c++ in visual studio 2019 some time ago and it worked perfectly. Today when I launched I got 490 errors. This is a screenshot of what a Hello World looks like: https://imgur.com/yxIs9Np
I am completely new to c++ so I dont know whats wrong, I have tried to search for the error but I could not find anything. I have tried to reinstall c++ in vs and updated vs to the newest version.
code:
#include <iostream>
int main() {
std::cout << "Hello World!\n";
}
its nothing wrong with the code, I think something is wrong with the librarys. For some reason I get 17 errors " cannot open file "[Some name].h" "
Reinstalled visual studio, this worked. The problem was that it dident include C:\Program Files (x86)\Windows Kits\10
I have found two similar questions this and this .
But they both use opencv, and opencv indeed provide the corresponding lib. I don't use opencv, and my project is very simple, just hello world.I have changed project default configuration like this
except for these configurations, others all take defaults
I just want to test my project configuration，that works find for win32 debug and release. But not work for x64 debug and release, they all tell me LINK : fatal error LNK1104: cannot open file 'opencv_world341d.lib'
I indeed know my project does not use any opencv lib, but why they tell me I need to use opencv_world341d.lib
my code
#include<iostream>
using namespace std;
int main()
{
cout << "hello world" << endl;
}
Thanks for everyone who comments on the question. I have solved the problem, although this problem not relevant to OpenCV to much, but I think the solution to the problem may be helpful to others. When I build project, visual studio 2019 tell me cannot link opencv_world341d.lib, so I go to Project->Properties->Linker->Input->Additional Dependencies , and I found opencv_world341d.lib. So I need to remove it, but it's readonly. From this we know visual studio using settings file (Microsoft.cpp..users.props) to control global settings including Global search path. These files are located at $(USERPROFILE)\appdata\local\microsoft\msbuild\v4.0 directory. Then I reedit Microsoft.cpp.<Platform>.users.props, delete opencv_world341d.lib, reboot visual studio, problem solved.
I am having an odd issue getting libtcod to work with Visual Studio 2015.
I have followed all the steps found on this blog post to get everything linked.
The problem is that during debugging or running it inside Visual Studio the application will always close at initRoot with exit code 1, no other information or errors.
Running the produced EXE outside of Visual Studio has no issues whatsoever - starts up and works as expected!
The only information I could find related to this was a forum post that turned ugly in 2012
I did make a modification to the blog post's code to include a setCustomFont as well, which did not change anything.
Does anyone have any ideas on what might be going on?
Code:
#include <cstdio>
#include "libtcod.hpp"
// Hide the console window
#pragma comment(linker, "/SUBSYSTEM:windows /ENTRY:mainCRTStartup")
int main()
{
TCODConsole::setCustomFont("terminal12x12_gs_ro.png", TCOD_FONT_LAYOUT_ASCII_INROW | TCOD_FONT_TYPE_GRAYSCALE);
TCODConsole::initRoot(80, 50, "C++ libtcod tutorial");
TCODConsole::root->printEx(40, 25, TCOD_BKGND_NONE, TCOD_CENTER, "Hello world");
TCODConsole::flush();
TCODConsole::waitForKeypress(true);
return 0;
}
For anyone that stumbles upon this later, the above blog post is correct for setting up the vast majority of the application - if you run into the same issue I did (crashing / exiting in initRoot) make sure you have the terminal png in the source directory, this is what fixed it for me.
I was using Visual C++ 6.0 just now, and I keep getting this error:
fatal error C1083: Cannot open include file: 'streambuf': No such file or directory
My code is just a simple hello world program.
#include "stdafx.h"
#include <iostream>
using namespace std;
int main(int argc, char* argv[])
{
cout<<"Hello World.";
return 1;
}
Then I went and checked my INCLUDE folder and found a file called STREAMBF, but the compiler was looking for STREAMBUF. Notice that the file that is present is missing the U, between the B and the F. This was from a good copy of VC++6.0, directly from the actual CD, not a pirated copy. So there should be all the files needed. But it appears that a file is missing! Is this MS being stupid again, and yet making another big mistake, and forgetting to include an important file on their CDs? I'd hate to think that every single CD for VC++6.0 that was pressed that came out of MS factories had this problem. And I know that it is a missing file, not just a misnamed file, as renaming STREAMBF to STREAMBUF just led to more errors.
Anybody know where I can find a copy of the file STREAMBUF? Or am I just overlooking something here? Is this exact error a known problem with running old copies of VC++ on modern OS's like Windows 7? Is it possible that the only reason that it's looking for STREAMBUF is that this is a newer file associated with Win7, and that if it was running in a different environment (an older OS), it would actually be looking for the correct file, STREAMBF? Can somebody help me here?
Your installation is either broken, deprecated or interpretes your code in wrong way.
You should only use older compiles if you are trying to build project developed entirely for this version.
Try to compile same code with new compiler, if you want to use VS then you should look for Visual Studio Express 2013.
Your code does not have any errors.
Modify your program to, you should be able to see it okay.
#include <iostream.h>
using namespace std;
int main()
{
cout<<"Hello World.";
return 1;
}
However,
your compiler is pretty old. You need to an upgrade.
There are C++ compilers for Windows from Microsoft Express Visual Studios Link and Info VS2013 to
some other non-Microsoft like GCC for Windows.
If you don't have installation access there are some portable c++ compilers.
Finally there are some online compilers for simple test. web based online compilers.
For my win 10 installation of VC 6.0, I had the same problem ... fatal error C1083: Cannot open include file: 'streambuf': No such file or directory
Replacing with <iostream.h> does not solve the problem.
I have checked the header file installation folder (Program files\VS98\VC98\INCLUDE). For some (unknown) reason, some file names have been changed during installation. Restoring the original name has solved the problem, in my case, in example:
Turn STREAMBF into STREAMBUF, STDXCEPT into STDEXCEPT, XCEPTION into EXCEPTION, FCTIONAL into FUNCTIONAL.
Notice: other header file names might be wrong. I have listed above the file names wrong in my installation.
I hope this may help.