I try to run diagnostic tools in Visual Studio 2015 Community for a test project.
My code:
#include<iostream>
int main()
{
for (;;)
{
std::cout << "Hello, World!";
getchar();
}
return 0;
}
I use x64 platform in configuration Debug. The Window Diagnostic Tools fail unexpectedly, saying the following:
The diagnostic tools failed unexpectedly. The Diagnostic Hub output
in the Output window may contain additional information.
Diagnostic Hub:
The scratch directory cannot have a trailing junction point.
What does it mean? How do I correct this error?
It's complaining that the "scratch directory" isn't actually a directory but some kind of reparse point. Reparse points are used to implement various NTFS file system features, notably junction points and symbolic links.
I'm not sure which directory the scratch directory is supposed to be, but my guess is that it's your TEMP directory (normally something like C:\Users\ROSSRI~1\AppData\Local\Temp) and you've done something like moved it to another drive using a junction point or symbolic link. You can check to see if your TEMP directory isn't really a directory by entering the following command in the Windows command prompt:
for /d %i in ("%TEMP%") do #echo %~ai
If it prints d-------- then it's a normal directory, but if it prints d-------l then it's a junction point.
Assuming I'm correct the solution would be either to move the TEMP directory back or point the TEMP and TMP environment variables to the location where you moved it.
Just :) restart your computer (yes nothing else helped me).
Related
i just started to code in cpp and nothing is working idk if i didn't install the gcc properly or what but i already set the path of the bin file idk why it refuses to run
the code:
#include<iostream>
int main()
{
std::cout<<"hello";
}
and the problem is that when I try to use the "code runner extension" it is not working so I just press f5 and then when I get the error messages which says at first "could not find the task file'c/c++:g++.exe build active file' " and I get three options 1:debug anyway
2:configure task
3:cancel
when I choose debug anyway I get this error here
Since you're on windows consider installing Visual Studio or CLion. They're more beginner friendly - VSCode can get tricky to run c++ on windows. Either way, looks like you're trying to run your project without building it first. There should be a build option right next to the run option. Try building it, then running. The build is what compiles and creates the project.exe file, which is what the compiler is saying isn't there.
The referenced IDE's always auto-build on run, so there's that
If you're familiar with using the command line, these commands will do what you want, assuming the .cpp file is in your current directory.
g++ <FILENAME>
./a.out
There are wonderful flags you can add to the first command (the compiling command) like -Wall, -Wextra, -o, and many more. But, since it seems like you're just starting out, there's no need to worry about those!
If you're not familiar with the command line, I would encourage you to become familiar! It is an extremely powerful tool for a programmer. Here is a YouTube video that talks about it.
I'm trying to get into SDL2 in C++ and I have followed all the steps in a variety of YouTube tutorials. I am using vs2019, and every time I try to run anything I get this error: Failed to locate: "CL.exe". The system cannot find the file specified.
For example, it happens when I try running this code:
#include "SDL.h"
#undef main
#include <iostream>
int main() {
int x = 1;
std::cout << "Hello World!\n";
std::cin.ignore();
return 0;
}
I have followed all of the steps, but nothing seems to work. Similar questions have been asked, but their solutions don't work for me. I'm just running it in the editor. Can anybody help me?
You need to run VCVARSALL.BAT for Visual studio 2019 in the console for making cl.exe available.
Alternatively you can run "Developer Command Prompt for VS 2019" from the Start menu and run cl.exe there (after changing the appropriate working directory to one containing your code).
I am going to post this as a potential answer, pending OP’s clarification to what he means by “running it in the editor”.
MSVS does not install with the C and C++ compiler and libraries unless you specifically ask for them. To install them you must re-run the installer. You will eventually get a screen with a lot of different options on it. It is a tabbed page with “Workloads”, “Individual Components”, and “Language Packs” at the top.
Find and make sure that you select both:
“Universal Windows Platform development”
“Desktop development with C++”
Continue as usual. The installer will update MSVS with the ability to compile C and C++ programs.
You can also read Microsoft’s instructions.
I have this well known c++ program in my Visual Studio 2015 Prof:
#include <iostream>
int main(int argc, char* argv[]) {
std::cout << "Hello World!" << std::endl;
return 0;
}
As expected, it shows "Hello World!" if I hit Ctrl+F5. However, if I go to the directory within an cmd.exe and execute the HelloWorld.exe file, it doesn't show anything as output, but does quit (I can type in again).
According to a similar question I checked the settings of the project but I did not need to change anything, the Configuration Properties -> Linker -> System -> SubSystem already is at Console (/SUBSYSTEM:CONSOLE).
Flushing the std::cout also didn't help anything. It is reproducable on every freshly created project of VS2015 on my Win 7 64-bit machine and seems to be presistent after rebooting.
What is wrong with my IDE / settings?
After the hint of #Scheff I threw the exe file into "Dependency Walker". It gave me a missing UCRTBASED.DLL and lots of second and third level missing dlls (I think this is usually the case on every application?).
I somehow think my (recently installed) anti virus did interfere with that, because it shows some messages in the log regarding my HelloWorld.exe.
However, deinstalling anti virus and restarting machine did the trick. I can finally see Hello World! on cmd.exe.
I am MFC guy working on visual studio 2010 create some executables using visual studio!! but on linux and mac my executables are not working as usual windows!!.
So i decided to use "MinGW" compiler to create executables.
Note:-Please give me one suggestion is that," is minGW is best compiler for cross plateform working ??or any thing else is there??"
I successfully install WinGW compiler on my C drive and start working with following program..
#include <iostream>
using namespace std;
int main ()
{
cout << "Hello ";
return 0;
}
I compile it using following command,
g++ -static-libgcc -static-libstdc++ Main.cpp
I found one executable in same folder with name a.exe :).Working fine:)
But after some time i decide to modified same program in following manner like,
int main ()
{
return 0;
}
I compile it with same command but when i execute it using command line it show me error "Access is denied so i goto that folder and run same executable as "Run as Administrator" it show me one messagebox with the message windows cannot access the specified device path or file. you may not have appropriate permissions
---EDIT--
follwing code is NOT WORKING:-
int main ()
{
int k;
return 0;
}
but this program WORKING :-
int main()
{
int k;
k = 0;
return 0;
}
If you are getting this access denied error, then the most likely cause is that the executable file is open in another process, probably the linker or debugger. Try installing Process Explorer and hit Ctrl+F and type in the name of your .exe. This should show the processes that the .exe file open. Kill those processes (or if you are still debugging, then end debugging first). You then should be able to build again.
Note that this has nothing to do with Microsoft APIs, as in any case you're using gcc.
EDIT: If there are no processes holding the .exe then it may be that there is some other kind of permission problem. Does the .exe file exist? Can you delete the file and rebuild? Another thing to try is run Process Monitor and filter for the name of the .exe -- that may show a regular permission denied error, or perhaps another error such as a sharing conflict.
Note:-Please give me one suggestion is that," is minGW is best compiler for cross plateform working ??or any thing else is there??"
No. And there's nothing else out there.
Use whatever compiler is available on target platform, ensure your code compiles on all of them.
Avoid platform-specific and compiler-specific code at all costs (use cross-platform frameworks).
I successfully install WinGW
There are many different versions of mingw provided by different sites. If you install compiler from mingw.org using mingw-get, it'll probably work. If you install mingw from some other site, it may or may not work.
I compile it using following command,
Use a build systems. cmake, qmake or something similar.
it show me error "Access is denied
Launch process monitor and see after which system call it terminates. It is also possible that your antivirus software interferes with your program, or maybe there's some stray dll in your path or something like that.
Check the permissions for the entire folder in which the executable resides. Trying to 'Run as Administrator' doesn't have any effect if the folder doesn't allow the permissions.
It doesn't have anything to do with your code. This is an environmental problem, something is pretty messed up about the permissions your user account has for one or more of the directories on your hard disk. The generic diagnostic is that the default working directory for the program does not permit read or list access.
A possible starting point would be to use Explorer and right-click the directory where MinGW is installed. Use the Security tab and ensure that your user account has all permissions enabled. Further narrow it down to trying to run the program from the command prompt, using different directories as the default directory.
When I run on my working machine (win7 VS2010 ultimate sp1)
int main()
{
unsigned i = 5;
i %= 0;
return 0;
}
or
int main()
{
int * ip = 0;
*ip = 4;
return 0;
}
and I get Integer division by zero unhandled exception. When I hit break button, to see the problem, my Call stack contains only msvcrt100d and ntdll and Visual studio breaks me inside file mlock.c on the LeaveCriticalSection( _locktable[locknum].lock ); line.
When I run this code on another machine(win7 VS2010 proff sp1), VS breaks it exactly on the problematic line i %= 0; od *ip = 4.
This mistake was hidden somewhere within my project and I wasn't able to find it till I run it on another machine. How can I fix this behavior? I need to see it on my working machine.
I have a clean installation of Windows 7, clean installation Visual Studio 2010 and VS-SP1.
My project should not be ruined. I generate it using CMake and same project working fine on non-working machine.
Any advice would be greatly appreciated.
Ok, I have found a solution.
In VS go to exceptions settings (ctrl + alt + e) and check Thrown in required Win32 Exceptions.
More info can be found
here and here.
SO related question here.
When you compile a program with VS it creates the EXE file and a PDB file with all the relevant debugging information of the program. Also, the absolute path of the PDB if embedded into the EXE.
When the EXE crashes and you use VS to debug it, it tries to find the corresponding PDB, both in the same folder than the EXE and in the absolute path embedded in the file. If you want it to be able to debug the program, then you must copy the PDB along with the EXE. Note that these two files must come from exactly the same compilation, or else it will not work.
Then, the VS debugger will try to show you the sources of the program, again using the absolute path of the *.c or *.cpp files embedded in the PDB. Obviously, if you want it to stop in the relevant line, you need a copy of the sources! If you copy the sources to the very same path than in the original machine it should work without problems. If not, you have to open the Call stack window, double-click over the main function and it will ask you to browse for the actual sources.
Or maybe your setup is screwed...