java.lang.NullPointerException: This exception has no message.

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NullPointerException when running H-PoPG with polyploid organism vcf

This exception has no message.

H-PoPG Haplotyper NullPointerException Error at algorithms.HBOP2Builder

This exception has no message.

java.lang.NullPointerException	at algorithms.HBOP2Builder.<init>(HBOP2Builder.java:59)	at algorithms.HBOP2Builder.<init>(HBOP2Builder.java:25)	at algorithms.HPBOP2Alg.buildHaplotype(HPBOP2Alg.java:24)	at main.PolyPlotyping.Polyphasing(PolyPlotyping.java:224)	at main.PolyPlotyping.go(PolyPlotyping.java:159)	at main.PolyPlotyping.main(PolyPlotyping.java:280)