Problem with Rsutio server in RedHat - verify-installation error

shiny
rstudio

#1

Hello Rserver community,

I installed R, R-sudio, and Rstudio-server in my RedHat machine. All three were successfully installed. 'which R' command gives me the following result:
/usr/bin/R
All required file/directories are present in /var/lib/rstudio-server with the following permission:
drwxr-xr-x 2 root root 6 Jun 5 13:45 body
drwxr-xr-x 2 root root 6 Jun 5 13:45 conf
drwxr-xr-x 2 root root 6 Jun 5 13:45 proxy
-rw------- 1 root root 32 Jun 5 13:45 secure-cookie-key

When I run rstudio-server status, it gives the following lines (which looks good):

● rstudio-server.service - RStudio Server
Loaded: loaded (/etc/systemd/system/rstudio-server.service; enabled; vendor preset: disabled)
Active: active (running) since Fri 2018-06-15 08:29:39 EDT; 42min ago
Main PID: 73139 (rserver)
CGroup: /system.slice/rstudio-server.service
└─73139 /usr/lib/rstudio-server/bin/rserver

But when i use 'sudo rstudio-server verify-installation', it gives me the following error massage:

15 Jun 2018 13:14:43 [rsession-rstudio-server] ERROR system error 2 (No such file or directory) [path=/tmp/rstudio-rsession/rstudio-server-d.pid]; OCCURRED AT: rstudio::core::Error rstudio::core::FilePath::open_w(rstudio_boost::shared_ptr<std::basic_ostream<char, std::char_traits > >, bool) const /root/rstudio/src/cpp/core/FilePath.cpp:1165; LOGGED FROM: int main(int, char const*) /root/rstudio/src/cpp/session/SessionMain.cpp:1743

Could you please help to find the cause of this problem?

Thanks
Kamal