got the same message!
mac os High Sierra
Model Name: MacBook Pro
Model Identifier: MacBookPro9,2
Processor Name: Intel Core i5
Processor Speed: 2.5 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 3 MB
Memory: 4 GB
Boot ROM Version: MBP91.00D9.B00
SMC Version (system): 2.2f44