My launch doesn't stop when pre launch task fails...

[ialvata]

tasks.json

{
    "tasks": [
        {
            "type": "shell",
            "label": "Build",
            "command": "/usr/bin/g++",
            "args": [
                "-fdiagnostics-color=always",
                "-fmax-errors=1",
                "-g",
                "${file}",
                "-o",
                "${fileDirname}/${fileBasenameNoExtension}"
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "Task generated by Debugger."
        },
        {

            "label": "Confirm",
            "dependsOn": [
                "Build"
            ],
            "command": "${fileDirname}/${fileBasenameNoExtension}",
            "dependsOrder": "sequence",
            "group": "none"
        }
    ],
    "version": "2.0.0"
}

launch.json

{
    "configurations": [
        {
            "name": "C/C++: gcc 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
                },
                {
                    "description": "Set Disassembly Flavor to Intel",
                    "text": "-gdb-set disassembly-flavor intel",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "Build",
            "miDebuggerPath": "/usr/bin/gdb"
        }
    ],
    "version": "2.0.0"
}

Then when I launch vscode, in the build process shell, I get:

• The terminal process "/usr/bin/bash '-c', '/usr/bin/g++ -fdiagnostics-color=always -fmax-errors=1 -g '/home/ivo/Trabalho/cpp_gaddis/Gaddis-CPP_10e_SourceCode/Chapter 12/Pr12-6.cpp' -o '/home/ivo/Trabalho/cpp_gaddis/Gaddis-CPP_10e_SourceCode/Chapter 12/Pr12-6''" terminated with exit code: 1.

And yet, the launch still continues, by running an old version of the executable.

I've search and found this closed thread... They suggest to issue against the C/C++ extension, however this doesn't solve my problem. Also, the build also terminates with error code 1, which supposedly should work according to user @weinand.