Problem with RFC-1212 in IMC

Hi,

I have a problem with compile the RFC-1212.mib in IMC. I compile succefull the RFC-1155 y RFC-1158 but when i copile the RFC-1212, this message appear:

INFO]Begin to compile mib files>>>>>>>>>>>>>>>>

[ERROR]Compile mib file(RFC-1212.mib) in directory(cisco) failed.

Lack of ObjectName from MIB RFC1155-SMI

Exception Line Number:5

3:           IMPORTS

4:               ObjectName

5?---->>                  FROM RFC1155-SMI;

6: --            DisplayString

7: --                FROM RFC1158-MIB;

8:

 Please Help me

[INFO]********** Total 1 MIB files compiled. **********

[INFO]********** In all 0 compilations succeed. **********

[INFO]Compiling mib files finished>>>>>>>>>>>>>>>>