XAMP installation problems on Redhat and Centos

[germancerda]

Dear, I am German Cerda, Soyde Ecuador and do not speak English so I beg your understanding
When installing Xampp on CentOS 5.2 32-bit or 64-bit Redhat 6 I get the following error:
In a Window
Waring
Problem running post-inslall step. Instalation may not complete correctly
Error running chown -R root:group
"/opt/lampp/apache2/hdocts": chown: <<root:group>>: grupo inválido

and then appears:

Warning
Problem running post-install step. Installation may not complete correctly
Error running chown -R root:group
"/opt/lampp/apache2/logs": chown: <<root:group>>: grupo inválido


2 times this error appears and then I can start lampp


Do not know why this error in Ubuntu was installed without incident but in these versions, I hope I can help, thanks.