give me the solution for below error
 

yum install curl compt-libstdc++-33 glibc nspluginwrapper
Setting up Install Process
Setting up repositories
Cannot find a valid baseurl for repo: update
Error: Cannot find a valid baseurl for repo: update

Hi

It might be an idea to tell us what distro you are using

If it's RHEL then first ensure the machine has access to RHN.
If it's RHEL and you won't buy RHN access then convert to CentOS or another (Enterprise?) Linux of choice.
Else check your /etc/yum.repos.d/update configuration for the baseurl directive and see if you can access the URI with cURL, wget, (e)links or whatever else.

*Please note that unless you was raised by baboons courtesy and netiquette apply always, so saying "Please give" would be preferred over just "give" for the more favorable impression it leaves.