I am having error while converting data in excel format in Prostar. In the dataset manager, I define the in all the tabs and then click convert it gives me the following message:

"the condition has length > 1 and only the first element will be used"

Thereafter, nothing happens. No error is reported but the data is also not converted.

You could try to load that spreadsheet data directly as an MSnSet using readMSnSet2 and then proceed using Prostar (I believe they support them).

Could you try to update to Prostar and DAPAR 1.10.0 (Bioconductor 3.6) ?