I got an error “Supplemental mappings (null) are missing in SAM/BAM, file might be invalid”

[happyxhz]

logging file ： Assembling contigs... chrchr1 done chrchr2 done chrchr3 done chrchr4 done chrchr5 done chrchr6 done chrchr7 done chrchr8 done chrchr9 done chrchr10 done chrchr11 done chrchr12 done chrchr13 done chrchr14 done chrchr15 done chrchr16 done chrchr17 done chrchr18 done chrchr19 done chrchr20 done chrchr21 done chrchr22 done chrchrX done chrchrY done Supplemental mappings (null) are missing in SAM/BAM, file might be invalid

Supplemental mappings (null) are missing in SAM/BAM, file might be invalid

Segmentation fault (core dumped)

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I wanna figure out why this problem raise?