expected a declaration RRS feed

  • Question

  • when I wrote the code to set up vscode (.json):

    	"version": "2.0.0",
    	"tasks": [
    			"type": "shell",
    			"label": "C/C++: g++.exe build active file",
    			"command": "C:\\Program Files (x86)\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin\\g++.exe",
    			"args": [
    			"options": {
    				"cwd": "C:\\Program Files (x86)\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin"
    			"problemMatcher": [
    			"group": "build"

    and it gives an error: expected a declaration.

    I don't understand why this error is happening, especially when the system reports the error at {at the top and elsewhere.


        // 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": "C/C++: Build and debug active file",
                "type": "cppdbg",
                "request": "launch",
                "program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
                "args": [],
                "stopAtEntry": false,
                "cwd": "${workspaceFolder}",
                "environment": [],
                "externalConsole": true,
                "MIMode": "gdb",
                "miDebuggerPath": "C:\\Program Files (x86)\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin\\gdb.exe",
                "setupCommands": [
                        "description": "Enable pretty-printing for gdb",
                        "text": "-enable-pretty-printing",
                        "ignoreFailures": true
                "preLaunchTask": "C/C++: g++.exe build active file"

    that is similar to the launch.json file, and with this code, it highlights the following half

    Sunday, November 8, 2020 12:43 PM

All replies

  • Questions

    • Which IDE e.g. VS2019 or VS Code?
    • Where does this file reside?

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    Sunday, November 8, 2020 4:35 PM
  • Vs Code.

    I created this file to assist in compiling, located in the .vscode folder. I tried several things but couldn't handle it, even just by writing "{" it was an error.

    at line (7,5)  I also got the error "Match multiple schemas when there is only one schema to validate.", this error corresponds to yellow.

    I write about c ++

    • Edited by Hào Ca Monday, November 9, 2020 12:55 PM
    Monday, November 9, 2020 12:51 PM
  • Hi ,

    This does not seem to be a programming problem, but a problem of using VS code.

    So I think you'd better raise this issue in the VS code GitHub repository.

    The Visual C# forum discusses and asks questions about the C# programming language, IDE, libraries, samples, and tools.

    Best Regards,


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    Tuesday, November 10, 2020 7:59 AM