Hi
I'm using juicer_tools.2.20.00.jar and I'm having the same issue, no inter_hists.m or merged1_index.txt files were generated in the aligned folder. And error message ( Error while reading graphs file: java.io.FileNotFoundException:xxx/aligned/inter_hists.m (No such file or directory)) was reported in the hic-xxx.err file. Since .hic files were generated, I wonder if it's necessary to generate the inter_hists.m file? The Juicer Pre wiki page says that "-g <graphs file> Add the text graphs file to the Hi-C file header", but I'm not sure how the header could affect downstream analysis. If it's indeed required, not do I generate it? How do I generate it? Any suggestion is appreciated.