big data which is about 850M consists of 85 strains ,i used BEAUti firstly ,but the output XML is just about 380M,much smaller than the input file ,the i ran the BEAST ,and got the error message as the title.I opened the XML in txt,it only contains some strains not all,and the end is DNA sequence ,not as the head of the file ,i think this is the reason why it says XML document structures must start and end within the same entity.
I have tried many times ,all failed
What is wrong??What can I do ???