The vscode report an error while building a c program. The error message is as below.
Cannot build and debug because the active file is not a C or C++ source file.
The terminal process failed to launch (exit code: -1).
The task config file is as below.
{
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++ build active file",
"command": "/usr/bin/gcc",
"args": [
"-fdiagnostics-color=always",
"-g",
"/home/xxx/tmp/test/main.c"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
}
}
]
}
I have a c file named main.c under the folder /home/xxx/tmp/test which is the workspace folder. What might be the cause of the problem?
As seen in this reply from Sean McManus, you need to get rid of all ${file} references in your tasks.json, for example:
"args": [
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
}
change to
"args": [
"-g",
"test.cpp",
"-o",
"libs/test.o"
],
"options": {
"cwd": "${fileDirname}"
}
And change type of build from cppBuild to shell.
Related
I have an executable file a.out in my workspace that I am trying to call with the argument hello.txt.
When I run ./a.out hello.txt in the terminal, it works. However, when try to do this with VSC, hello.txt is not getting passed to the executable.
I've verified my json files extensively, but I cannot figure out where the issue is coming from. Any help would be greatly appreciated. My tasks.json and launch.json are below:
tasks.json:
{
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: gcc-9 build active file",
"command": "/usr/bin/gcc-9",
"args": [
"-fdiagnostics-color=always",
"-g",
"${file}",
"-o",
"${fileDirname}/a.out"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}
launch.json:
{
"name": "C Launch",
"request": "launch",
"program": "${workspaceFolder}/a.out",
"args": ["${workspaceFolder}/hello.txt"],
"cwd": "${workspaceFolder}"
}
I'm running VS Code on freshly installed Ubuntu 22.04 LTS. Whatever I try, my language standard is stuck at c++17. I use gcc compiler.
To check the issue I run the following code:
#include <iostream>
int main()
{
if (__cplusplus == 201703L) std::cout << "C++17\n";
return 0;
}
Output is always the same: C++17
I've set "cppStandard": "c++23", in c_cpp_proporties.json.
I've set C++ standard in C/C++ Configurations settings to c++23.
I've set compiler arguments to -std=c++23.
I've been resetting VS Code, creating new files, reinstalling extensions, nothing.
Snippet from my tasks.json:
{
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++ build active file",
"command": "/usr/bin/g++",
"args": [
"-fdiagnostics-color=always",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": "build",
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}
Installed extensions:
C/C++ by Microsoft
C/C++ Extension Pack by Microsoft
C/C++ Themes by Microsoft
CMake Tools by Microsoft
Better C++ Syntax by Jeff Hykin
As many of the commentators pointed out, tasks.json is used for compiling. #Some programmer dude correctly explained that I should put argument inside it. Updating task.json with the following code is the solution:
{
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++ build active file",
"command": "/usr/bin/g++",
"args": [
"-std=c++23",
"-fdiagnostics-color=always",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}
I am following the tutorial here which shows how to use the VS C++ in Visual Studio Code.
Everything runs smoothly. The only problem is the auto-generated files (.lnk, .pdb, .exe and the likes) get generated in my src itself. How do I get the task to generate an output folder and store the auto-generated files there?
tasks.json:
{
"version": "2.0.0",
"tasks": [
{
"type": "shell",
"label": "cl.exe build active file",
"command": "cl.exe",
"args": [
"/Zi",
"/EHsc",
"/Fe:",
"${fileDirname}\\${fileBasenameNoExtension}.exe",
"${file}"
],
"problemMatcher": ["$msCompile"],
"group": {
"kind": "build",
"isDefault": true
}
}
]
}
launch.json:
{
"version": "0.2.0",
"configurations": [
{
"name": "cl.exe build and debug active file",
"type": "cppvsdbg",
"request": "launch",
"program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
"args": [],
"stopAtEntry": false,
"cwd": "${workspaceFolder}",
"environment": [],
"externalConsole": false,
"preLaunchTask": "cl.exe build active file"
}
]
}
VSCode : 1.61.0
Linux: Ubuntu 20.04.3 LTS
I'm trying to build c++ program using by VSCode.
when the run build, VSCode showing this message.
I know build tasking need matching launch.json file's preLaunchTask with tasks.json file's label. and I'm already set it.
tasks.json
{
"tasks": [
{
"type": "cppbuild", // but "shell" is working
"label": "C/C++: g++ build active file",
"command": "/usr/bin/g++",
"args": [
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}
launch.json
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "g++ - Build and debug active file",
"type": "cppdbg",
"request": "launch",
"program": "${fileDirname}/${fileBasenameNoExtension}",
"args": [],
"stopAtEntry": false,
"cwd": "${fileDirname}",
"environment": [],
"externalConsole": false,
"MIMode": "gdb",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
],
"preLaunchTask": "C/C++: g++ build active file",
"miDebuggerPath": "/usr/bin/gdb"
}
]
}
The problem is, if I change the "type" value in tasks.json, from shell to cppbuild, It doesn't work and show the error message like to.
showing error message when the run build
what is different "cppbuild" and "shell"? and What should I do how using "cppbuild" value?
Te values of cppbuild are fine. Try changing in launch.json the value:
"preLaunchTask": "C/C++: g++ build active file",
to:
"preLaunchTask": "cppbuild",
The difference between shell and cppbuild is that the first open the BASH and runs a command you write, the second, cppbuild, runs an specific binary (or program).
I would like to run my simple program in Visual Studio Code without debugging but all programs run in debugging mode.
I used CTRL + F5 (Run without debugging) but automatically go to debugging mode.
Could you please help me?
Tasks.json
{
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: g++.exe build active file",
"command": "C:\\MinGW\\bin\\g++.exe",
"args": [
"-g",
"${file}",
"-o",
"${fileDirname}\\${fileBasenameNoExtension}.exe"
],
"options": {
"cwd": "C:\\MinGW\\bin"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "compiler: C:\\MinGW\\bin\\g++.exe"
}
]
}