UVM Configuration DB Gotchas.

• Missing super.build_phase()
• Missing field macro
• UVM_READONLY on field
• Missing get() after set() changes the entry
• uvm_config_object::set() writes a null object
• Wrong or mismatched types
• Missing $cast in explicit get()
• Wrong string in field names, wrong context
• Not a good practice to use wildcard in ::set() - creating too much visibility

 References:

• Accellera
• Guidelines
• Register Model
• Configuration DB Demystified
• Testbench Configuration Doc