Error parsing MIB:LIEBERT-GP-ENVIRONMENTAL-MIB

Error parsing MIB:LIEBERT-GP-ENVIRONMENTAL-MIB

Hello
 
I have this MIB: LIEBERT-GP-ENVIRONMENTAL-MIB.mib from this sites
http://www.oidview.com/mibs/476/LIEBERT-GP-ENVIRONMENTAL-MIB.html, i want to monitor UPS liberty temperature
 
Error parsing MIB:LIEBERT-GP-ENVIRONMENTAL-MIB
Exception while loading MIB:IMPORTS failed: Could not find the file : C:/PROGRA~1/MANAGE~1/OPMANA~1/./mibs/LIEBERT-GP-REGISTRATION-MIB
 
Could someone help me?

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