Diamond 3.12 and below: Error "'attributes' is not compiled in library 'synopsys'"

Diamond 3.12 and below: Error "'attributes' is not compiled in library 'synopsys'"

Description: 
When adding Reval to your design, and try to synthesize, below error might occur: 

Error "'attributes' is not compiled in library 'synopsys'" 

Solution:
This is a known issue in Diamond version 3.12. Please try to update the software to Diamond 3.12 SP1 or higher.