All Oracle Error CodesOracle DBA Forum

ORA-01771:

illegal option for a clustered table
Cause: During a CREATE or ALTER of a clustered table, the user attempted to enter one or more of the following options: INITRANS, MAXTRANS, PCTFREE, PCTUSED, STORAGE, TABLESPACE. These options may only be specified for the cluster itself.
Action: Remove the illegal option(s).