C++ , using g++ to compile works fine if new file else got issues
<p>I got this issue is after i run countryServer in background and then i kill it. I try recompile a new version and this is what i get</p>

<pre><code>root@ubuntu:/home/baoky/shell_assignment/shell_assn2# g++ -o countryServer CountryServer.cpp
root@ubuntu:/home/baoky/shell_assignment/shell_assn2# ./countryServer &amp;
[1] 3097
root@ubuntu:/home/baoky/shell_assignment/shell_assn2# 
Running server program 'css' ...... 

Country Directory server started

root@ubuntu:/home/baoky/shell_assignment/shell_assn2# ps
  PID TTY          TIME CMD
 2993 pts/3    00:00:00 su
 3001 pts/3    00:00:00 bash
 3097 pts/3    00:00:00 countryServer
 3098 pts/3    00:00:00 ps
root@ubuntu:/home/baoky/shell_assignment/shell_assn2# kill 3097
[1]+  Terminated              ./countryServer
root@ubuntu:/home/baoky/shell_assignment/shell_assn2# g++ -o countryServer CountryServer.cpp
/usr/bin/ld: cannot open output file countryServer: No such device or address
collect2: ld returned 1 exit status

root@ubuntu:/home/baoky/shell_assignment/shell_assn2# ls -l
total 60
-rw-r--r-- 1 baoky baoky 19545 Aug  2 10:33 Countries.txt
-rwxr-xr-x 1 root  root  14756 Aug  4 03:17 countryClient
-rw-r--r-- 1 baoky baoky  3514 Aug  4 03:19 CountryClient.cpp
-rw-r--r-- 1 baoky baoky  4740 Aug  4  2012 CountryData.c
-rw-r--r-- 1 baoky baoky  2022 Aug  2 10:33 CountryData.h
srwxr-xr-x 1 root  root      0 Aug  4 03:29 countryServer
-rw-r--r-- 1 baoky baoky  7762 Aug  4 03:18 CountryServer.cpp
</code></pre>

<p>I get an error that return me this 
/usr/bin/ld: cannot open output file countryServer: No such device or address
collect2: ld returned 1 exit status</p>

<p>I can fix it if i do rm -rf countryServer</p>

<p>but how do i fix it so it can overwrite the old countryServer ( after i kill its process and recompile it)</p>
