[SOLVED] Main.cpp:2:29: fatal error: opencv2/opencv.hpp: No such file or directory c++

Issue

i know this question has been asked before but i can't understand their explanation. i am completely new to coding , help if you can.

here is my file image: src="https://i.stack.imgur.com/j03aj.png" alt="here is my file image" />

here is my task jason files:

{
    "version": "2.0.0",
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: g++ build active file",
            "command": "/usr/bin/g++",
            "args": [
                "-g",
                "${file}",
                "-o",
                "${fileDirname}/${fileBasenameNoExtension}",
                "`pkg-config",
                "--cflags",
                "--libs",
                "opencv4`"
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "compiler: /usr/bin/g++"
        }
    ]
}

and here is my CMakeLists.txt:

cmake_minimum_required(VERSION 3.10)

project(ObjectDetection)

set(OpenCV_DIR C:/Users/prana/OneDrive/Desktop/last_attempt/opencv)
find_package(OpenCV REQUIRED)

add_executable(${PROJECT_NAME} src/Main.cpp)

target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBS})

Solution

The error:

The error you describe is a result of executing a line of code attempting to access the file opencv2/opencv.hpp. Since this extension is hpp, it is a header file: simply put, header files help different files within the source code all share the same core variables. The error associated with failure to access a header file likely occurs in the preamble of one of the opencv2 source files.

In general, when implementing downloaded source code, this is the result of failure to configure the file structure in the expected way (assuming you downloaded everything). Make sure to check that you have both OpenCV_contrib AS WELL AS OpenCV.

Solution:

Make sure that your '/build' path is included.

Since this question is already answered in a very thorough manner (by Faisal_L), for a particular solution I direct you to follow the instructions they laid out below.

https://stackoverflow.com/a/73186585/21977063

Answered By - Mike H

Answer Checked By - Terry (WPSolving Volunteer)