Ubuntu :: Simple Script Errors Out At Setup Commands

I am trying to make a simple script. The first part works to untar a file. When I try to CD from within my simple script.sh file to the new directory just untared and run the setup commands it just errors out and says something about having no directory or something and saying that it cant make without configuring or something.

#!/bin/bash
for file in *.tar.gz
do
tar -xvzf $file
done

cd some-directory
./configure
make
make install