i am learning vc++ and i make my first application win32 console and just write simple code and i get 20 error from external files automatic included
i change compile as to c++ and not using precompiled headers but stil have errors
here is my code
#include <iostream>
int main()
{
//cout << "hello !" << endl;
return 0;
}
how can i fix it ?
Edit :
i have win7 and vs2015 perhaps helps
Edit 2:
last picture is for an empty project this one is for a win32 console app
I think you have created a project set to use precompiled header. Can you start with an empty project and add source file?
And don't forget to set "Not using precomplied header" in file option
First time using Visual C++ in Visual Studio and I'm trying to teach myself C++ from some books. I am just trying to do a basic "Hello World" program and its getting a couple errors that I don't know anything about, as well as a bizarre warning. The missing source file seems to be standard and I can't figure it out.
The errors:
Error 2 error : Required file "tracker.exe" is missing.
Error 3 IntelliSense: cannot open source file "SDKDDKVer.h"
The warning:
warning MSB8003: Could not find WindowsSDKDir variable from the registry. TargetFrameworkVersion or PlatformToolset may be set to an invalid version number.
The code:
#include "stdafx.h"
#include <iostream>
using namespace std;
int main()
{
cout << "Hello World!" ;
// This prevents the Console Window from closing during debug mode
cin.ignore(cin.rdbuf()->in_avail());
cout << "\nPress only the 'Enter' key to exit program: ";
cin.get();
return 0;
}
Any explanations or help would be huge! Thanks.
Here's a standard C++03 "hello, world!":
#include <iostream>
using namespace std;
int main()
{
cout << "Hello, world!" << endl;
}
Turn off precompiled headers in the project settings. Make that compile without adding anything. Run it via Ctrl F5 (alternatively place a breakpoint on the final } and run it via the debugger, e.g. keypress F5).
If that doesn't work then you have configuration error. Then try first a new project. If that doesn't work, uninstall VS and reinstall it.
I've reinstalled Visual Studio 2010 Professional several times to try to get it to work.
I had to uninstall Visual Studio 2012 Professional because it wasn't compiling something we did in class.
I completely uninstalled everything including SQL Server..
I went to VC/include and the iostream header file is not there.
#include <iostream>
int main () {
cout << "hello";
system ("PAUSE");
return 0;
}
This is all I'm trying to do because nothing else is working.
It's really driving me crazy because I need to get it working so that I can do my project!!!
Every time I do; new project => empty project => add an item to source =>.cpp
I'm running windows 8.
It just says Error cannot open source file
Also, error cout identifier is undefined....
I'm wondering if I should do a system restore?
Or if I should just completely reinstall windows 8 from my recovery media?
One problem is that you did not include the namespace std.
This is what your code should look like:
#include <iostream>
using namespace std;
int main (void) {
cout << "hello" << endl;
system("pause");
return 0;
}
or you could have done something like this: std::cout << "Hello" << std::endl;
This may be a problem because you did not set your environment to C++. This is how you do it:
Go to Tools > Import and Export settings. If you cannot find it, just search for it in Quick Search
Then go to reset all settings.
Then simply select "Visual C++"
Restart.
That should do the trick. If it does not, you might consider re-installing Visual C++ itself. For VS 2012. If that does not work, then re-install the program.
if it is problem with visual studio 2012, install this update.
I am new to C++. I just started! I tried a code on Visual C++ 2010 Express version, but I got the following code error message.
------ Build started: Project: abc, Configuration: Debug Win32 ------
ugo.cpp
c:\users\castle\documents\visual studio 2010\projects\abc\abc\ugo.cpp(3): fatal error C1083: Cannot open include file: 'iostream': No such file or directory
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
This is the code:
// first.cpp -- displays a message
#include <iostream> // A PREPROCESSOR directive
int main(void) // Function header
{ // Start of a function body
using namespace std;
cout << "Come up and C++ me sometime.\n"; // Message
// Start a new line
cout << "Here is the total: 1000.00\n";
cout << "Here we go!\n";
return 0;
}
Replace
#include <iostream.h>
with
using namespace std;
#include <iostream>
Some things that you should check:
Check the include folder in your version of Visual Studio (in "C:\Program Files\Microsoft Visual Studio xx.x\VC\include", check for the file which you are including, iostream, make sure it's there).
Check your projects Include Directories in <Project Name> → Properties → Configuration Properties → VC++ Directories → Include Directories (it should look like this: $(VCInstallDir)include;$(VCInstallDir)atlmfc\include;$(WindowsSdkDir)include;$(FrameworkSDKDir)\include;)
Make sure that you selected the correct project for this code
(menu File → New → Project → Visual C++ → Win32 Console Application)
Make sure that you don't have <iostream.h> anywhere in your code files, Visual Studio doesn't support that (in the same project, check your other code files, .cpp and .h files for <iostream.h> and remove it).
Make sure that you don't have more than one main() function in your project code files (*in the same project, check your other code files, .cpp and .h files for the* main()` function and remove it or replace it with another name).
Some things you could try building with:
Exclude using namespace std; from your main() function and put it after the include directive.
Use std::cout without using namespace std;.
I had this exact same problem in Visual Studio 2015. It looks like as of Visual Studio 2010 and later you need to include #include "stdafx.h" in all your projects.
#include "stdafx.h"
#include <iostream>
using namespace std;
The above worked for me. The below did not:
#include <iostream>
using namespace std;
This also failed:
#include <iostream>
using namespace std;
#include "stdafx.h"
You are more than likely missing $(IncludePath) within Properties → VC++ Directories → Include Directories.
Adding this should make iostream and others visible again. You probably deleted it by mistake while setting up your program.
If your include directories are referenced correctly in the VC++ project property sheet → Configuration Properties → VC++ directories → Include directories, the path is referenced in the macro $(VC_IncludePath).
In my Visual Studio 2015 this evaluates to:
"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include"
using namespace std;
#include <iostream>
That did it for me.
It is possible that your compiler and the resources installed around it were somehow incomplete. I recommend re-installing your compiler: it should work after that.
I got this error when I created an 'Empty' console application in Visual Studio 2015. I recreated the application, leaving the 'Empty' box unchecked. It added all of the necessary libraries.
Make sure you have Desktop Development with C++ installed.
I was experiencing the same problem, because I only had Universal Windows Platform Development installed.
Microsoft Visual Studio is funny. When you're using the installer, you must checkbox a lot of options to bypass the .NET framework (somewhat) to make more C++ instead of C# applications, such as the CLR options under desktop development... in the Visual Studio installer.... the difference is the C++ Win32 console project or a C++ CLR console project.
So what’s the difference? Well, I'm not going to list all of the files CLR includes, but since most good C++ kernels are in Linux... So CLR allows you to bypass a lot of the Windows .NET framework because Visual Studio was really meant for you to make applications in C#.
Here’s a C++ Win32 console project!
#include "stdafx.h"
#include <iostream>
using namespace std;
int main()
{
cout << "Hello, World!" << endl;
return 0;
}
Now here’s a C++ CLR console project!
#include "stdafx.h"
using namespace System;
int main(array<System::String ^> ^args)
{
Console::WriteLine("Hello, World!");
return 0;
}
Both programs do the same thing .... the CLR just looks more frameworked class overloading methodology, so Microsoft can great its own vast library you should familiarize yourself with if so inclined.
Keywords (C++)
Other things you'll learn from debugging to add for error avoidance:
#ifdef _MRC_VER
#define _CRT_SECURE_NO_WARNINGS
#endif
If you created an environment variable with the name IncludePath, try renaming it to something else.
This name will override $(IncludePath) inside project properties.
Quick fix for small programs:
Add: #include <cstdlib>
In my case, my Visual Studio 2015 installed without selecting C++ package, and Visual Studio 2017 is installed with the C++ package. If I use Visual Studio 2015, opening a C++ project will show this error, and using Visual Studio 2017 will be no error.
I had this problem too. I used this code (before main();) in Visual Studio 2022, and it turned OK:
#include "pch.h"
#include <iostream>
using namespace std;
using namespace winrt;
using namespace Windows::Foundation;
In my case, the error occurred when I created a file in VS Code, without giving the .cpp extension. It resolved when I renamed it with the .cpp.
// first.cpp -- displays a message
#include <iostream> // a PREPROCESSOR directive
using namesapce std;
int main() // function header
{ // start of a function body
///using namespace std;
cout << "Come up and C++ me sometime.\n"; // message
// start a new line
cout << "Here is the total: 1000.00\n";
cout << "Here we go!\n";
return 0;
}
I have installed visual studio express 2010 c++. However when trying to follow a beginners book and make the hello world program, visual studio opens up a project with this in it:
#include "stdafx.h"
using namespace System;
int main(array<System::String ^> ^args)
{
Console::WriteLine(L"Hello World");
return 0;
}
The thing is, this looks nothing like the c++ in the book i have just started reading (C++ Without Fear). In fact, if i type 'cout',even after entering using namespace std, cout is not found.
This is the books example:
#include "stdafx.h"
#include <iostream>
using namespace std;
int main() {
cout << "Never fear, C++ is here!";
return 0;
}
Am i missing something here?
Create Windows (or Win32, don't remember exactly) C++ Console Application project, don't select C++/CLI project type.
C++/CLI is very special language, which is used only for interoperability between managed and unmanaged code. It is better to forget about C+++/CLI at this stage...
As Alex said start with C++ Win32 console project, but select empty project so that the IDE don't fill things out automatically! Go to Source Files in your Solution Explorer, right click on it and add new item and choose C++ file (call it main.cpp for example).
At that point you should be ready to go.
Try this sample code that I prepared for you...
#include <iostream>
using namespace std;
int main(char *argv[], int argc) {
cout << "Hello World!" << endl;
return 0;
}
It should print out Hello World! in the console.
You want to start with a Visual C++ Win32 Console Application.
If you want to create your own files completely (i.e. no stub file with a main defined), you can check "Empty Project" in the options of the Win32 Application Wizard.
This is not C++. This is so called "managed" C++. Basically, a totally different language by Microsoft that is compatible with their .NET platform. For example, you can mix C# code and managed C++ code in single binary. This technology is very Microsoft specific and is not portable to any other compiler/OS (even Mono, which is C# for Linux, doesn't have it). See Managed Extensions for C++ for more details.