Issue don't show graph CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdto

[laewtae]

Help me we install cacti Version : 1.2.9 on CentOS 7.6 ,But don't show graph error in attachment and log in below
[root@cacti ~]# tail -f /var/www/html/cacti/log/cacti.log
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.
2020/02/26 08:17:33 - CMDPHP ERROR: RRDtool executable not found, not executable or error in path '/usr/local/bin/rrdtool'. No output written to RRDfile.

[netniV]

Console -> Settings -> Configuration -> Paths -> RRDTool

[laewtae]

Hi netniV

We change Paths -> RRDTool save show massage eror : Sorry, we could not process your last action.
Some settings not saved. Check messages below. Check red fields for errors.
The file highlighted does not exist. Please enter a valid file name.(detail in attachment )

[camerabob]

Is RRD tool installed?

[Osiris]

That error was fixed in 1.2.10 I think..