cleartool error: Not a vob object when recommending a baseline

When creating a baseline for a stream, it reported the following error message and failed. The cause is that the recommend baseline is removed and the stream cannot find it.

M:\qinl_NewMainline_int>cleartool chstream -rec NewMainline_10_12_2007.1228 NewMainline_i@\CBFEProjects
cleartool: Error: Not a vob object: "291fb10e.71e711dc.8fad.00:01:83:f9:3b:ad".
cleartool: Error: Unable to get current recommended foundation for stream "NewMainline_i".
cleartool: Error: Unable to set the recommended baselines for stream "NewMainline_i".
cleartool: Error: Unable to change all streams.

Solution. un-recommend baseline in the stream, and recommend a good baseline.

M:\qinl_NewMainline_int>cleartool chstream -nrec NewMainline_i@\CBFEProjects
Changed stream "NewMainline_i@\CBFEProjects".

M:\qinl_NewMainline_int>cleartool chstream -rec NewMainline_10_12_2007.1228 NewMainline_i@\CBFEProjects
Changed stream "NewMainline_i@\CBFEProjects".