Metaboanalyst 5.0 ERROR

I have files in RAW format produced by U-HPLC MS/MS that I can open with Xcalibur. I would try to use MetaboAnalyst but I converted them with ProteoWizard to mzXML format and zip them. I upload in metaboanalyst but at the end of the process I have these 3 errors:

ERROR:No enough peaks detected, please adjust your parameters or use other Peak/Alignment method

ERROR:attempt to set ‘colnames’ on an object with less than two dimensions


What can I do?