I followed an online article *to remove my Apache* from my system.  

I removed Apache through these commands

```
sudo apt-get purge apache2 apache2-utils
sudo rm -rf /etc/apache2-bin
sudo apt-get autoremove

```

Then in the article they mentioned to remove the files and directories of the results of `whereis apache2`.

After running the command `whereis apache2` I found

```
/usr/sbin/apache2/usr/share/apache2
/usr/lib/apache2
/usr/share/man/man8/apache2.8.gz
/etc/apache2

```

I removed the above directories and files through command `sudo rm -rf file_or_directory_name`.

Then I tried

```
sudo apt-get install apache2

```

I clicked **'y'** when the system asked `do you want to continue?`.

Then the error came:

```
Setting up apache2 (2.4.7-1ubuntu4.4) ...
cp: cannot stat ‘/usr/share/apache2/default-site/index.html’: No such file or directory
dpkg: error processing package apache2 (--configure): subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:  apache2 E: Sub-process /usr/bin/dpkg returned an error code (1)

```

I tried `sudo apt-get install apache2` again after running the `sudo apt-get update` command, but still got the same error results.