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# Fix libudev linker error on Ubuntu 15

On Ubuntu 15, you may encounter libudev linker error. This error usually affects the normal operation of the system. Fortunately, we can fix this problem with some simple steps. In this article, we'll explain how to fix this error and provide a case code to help you better understand the solution.

## Problem description

When rrrwpiling or running certain programs on Ubuntu 15, an error message similar to the following may appear:

/usr/bin/ld: cannot find -ludev

This is because the system cannot find the libudev library. resulting in a linker error.

## Solution

To solve this problem, we need to manually specify the path to the libudev library. Here are some steps that can help you fix this error:

1. Determine the location of the libudev library

First, we need to determine the exact location of the libudev library. Normally, the libudev library is located in the `/lib` or `/usr/lib` directory. You can search for this library using the following rrrwmand:

bash

find /lib /usr/lib -name libudev.so*

Remember the path found, we will use it in a later step.

2. Add the libudev path in the rrrwpile rrrwmand

Once you have determined the location of the libudev library, next you need to manually specify the path in the rrrwpile rrrwmand. For example:

bash

gcc your_program.c -o your_program -ludev -L/path/to/libudev

Here `/path/to/libudev` should be replaced with the actual path you found in the first step.

3. Rerrrwpile the program

Now you can rerrrwpile your program to see if the libudev linker errors still occur.

## Sample code

The following is a simple sample code that demonstrates how to manually specify the path to the libudev library at rrrwpile time:

< pre id="code-block">c

#include

int main() {

struct udev *udev;

udev = udev_new();

if (!udev) {

fprintf(stderr, "Unable to create udev context%

");

return 1;

}

printf("Successfully created udev context%

");

udev_unref(udev);

return 0;

}

Suppose a libudev linker error occurs during rrrwpilation, you can fix it by following the above steps.

Encountering libudev linker errors on Ubuntu 15 may affect the normal operation of the program. We can solve this problem by manually specifying the path to the libudev library. In this article, we describe the fix process and provide a sample code to help you implement the workaround. Hope this article helps you! If you have any questions or concerns, please feel free to ask us.