Dear all,
             Follow former email, I found the joelib2 terminate singularly, it gives the following message:
             INFO ] joelib2.example.FeatureCalculationExample - Calculate binary SMARTS and fingerprints...
21:18:49 [ERROR]                   - Can not convert string '' to type 'int' in line: 479                                                                    Error in atom/bond definition line.
        at Source)
        at Source)
        at (Unknown Source)
        at Source)
        at joelib2.example.FeatureCalculationExample.calculateNominalDescriptors(Unknown Source)
        at joelib2.example.FeatureCalculationExample.main (Unknown Source)
         I think it is the error that prevent the joelib from generating binary fingerprints, so what can I do? I just used the joelib2 binary version, and the command is : java joelib2.example.FeatureCalculationExample +SSKey  abc.SDF  abc.CTX
Kind regards,
The best way to predict the future is to invent it - Alan Kay