Hi, everyone when i use cdk1.3.3 to read sdf, there is an exception when it read bond up or down compound like attachment picture. the following is error message: Exception in thread "main" java.lang.NullPointerException at org.openscience.cdk.io.MDLWriter.writeMolecule(MDLWriter.java:315)
who can give me some suggestions? thanks in advance. Eric
<<attachment: demo.png>>
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