CMDPHP: Poller[0] Host[1] DS[4] WARNING: Result from CMD not

[HamedMajnoonian]

I have finished installed a fresh FreeBSD 8.0 and Cacti 0.8.7e.

Cacti is up and running but when I click on graph section, I can't see any graph (graphs are broken) BUT when I click on broken image, the next's page graphs are OK and working fine which shows that poller.php is working in my crontab. I Checked the permission of rra/ and log/ and both are cacti:cacti and 644. Also the graphs inside the directory are updating.

I turned to /log to check cacti.log and I found out this:
+++++++++++++++++++++++++++++++++++
02/23/2010 05:20:01 PM - CMDPHP: Poller[0] Host[1] DS[3] WARNING: Result from CMD not valid. Partial Result: U
02/23/2010 05:20:01 PM - CMDPHP: Poller[0] Host[1] DS[4] WARNING: Result from CMD not valid. Partial Result: U
02/23/2010 05:20:02 PM - SYSTEM STATS: Time:1.4419 Method:cmd.php Processes:1 Threads:N/A Hosts:2 HostsPerProcess:2 DataSources:5 RRDsProcessed:5
+++++++++++++++++++++++++++++++++++

After all, I read some similiar cases, and I found out that some have experienced this problem and assumed that the problem is something about rrdtool. I re-installed the rrd-tool but I was receiving same errors again.

Would be thankful to be helped...

[gandalf]

That is in most cases a mismatch between installed rrdtool version and the one configuredn under "Settings -> RRDTool Utility Version"
R.

[HamedMajnoonian]

Commander R, I solved the problem by doing this:
I remembered when I was installing net-snmp, when it asked for what features should be complied with, I deselected PERL, 'coz I was assuming since my system as already PERL installed then it could cause a problem. I reinstalled net-snmp with default settings and it worked.

Thanks