"cakephp.tar.gz" error not in gzip format

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http://forums.fedoraforum.org – I am a newborn in the world of Linux. I am using Fedora 14 on my PC. I installed cake php version with the help of wget and entered the following command, [root@localhost www]# wget http://cakeforge.org/frs/download.ph...ation=complete Then I entered [root@localhost www]# mv donation\=complete cakephp.tar.gz [root@localhost www]# ls it showed that cakephp.tar.gz ios now in my /var/www/ folder. But when i try to extract it using tar zxvf cakephp.tar.gz, it gives follwing error gzip: stdin: not in gzip format tar: Child returned status 1 tar: Error is not recove (HowTos)