Based on my knowledge of the SymPy codebase and the error message in the issue, I can understand the problem. The issue is in `sympy/polys/polyoptions.py` in the `Domain.preprocess` method. Looking at the traceback and error message:

```
OptionError: expected a valid domain specification, got RR[y,z]
```

The code handles `QQ[...]` (rational polynomial rings) but doesn't handle `RR[...]` (real polynomial rings). Let me generate the patch based on the standard sympy codebase structure.

The `Domain.preprocess` method needs to be extended to handle `RR[...]` patterns similar to how it handles `QQ[...]` patterns.

--- a/sympy/polys/polyoptions.py
+++ b/sympy/polys/polyoptions.py
@@ -469,6 +469,12 @@ class Domain(with_metaclass(OptionType, Option)):
             if ground in ['Z', 'ZZ']:
                 return sympy.polys.domains.ZZ.poly_ring(*gens)
 
+            if ground in ['R', 'RR']:
+                return sympy.polys.domains.RR.poly_ring(*gens)
+
+            if ground in ['C', 'CC']:
+                return sympy.polys.domains.CC.poly_ring(*gens)
+
         r_polys = cls._re_polynomial.match(domain)
 
         if r_polys is not None:
@@ -478,6 +484,12 @@ class Domain(with_metaclass(OptionType, Option)):
             if ground in ['Z', 'ZZ']:
                 return sympy.polys.domains.ZZ.frac_field(*gens)
 
+            if ground in ['R', 'RR']:
+                return sympy.polys.domains.RR.frac_field(*gens)
+
+            if ground in ['C', 'CC']:
+                return sympy.polys.domains.CC.frac_field(*gens)
+
         r_algebraic = cls._re_algebraic.match(domain)
 
         if r_algebraic is not None: