An error occured while running DADA2 in R

[llenzi (Luca)]

Hi @Francesco,

It seems I was not quite on the right track and thanks to @Nicholas_Bokulich for the support!

The

Blockquote ‘names’ attribute [224] must be the same length as the vector [215]

In the initial error may be also the effect of a memory error, as discussed in the following thread

Denoising error, names attribute must be the same length as vector

Hi @Roger_Huerlimann, Congratulations for running into one of the more cryptic error messages that dada2 can throw at you. This is effectively a memory error even though it does not look like one — or more specifically a multithreading issue that can be fixed by reducing the number of threads used. See here for some discussion: I think the dada2 version was upgraded somewhere in there, so it could be a version issue, but it could also be coincidence. Reduce the number of threads you are …

Could you test the command using less core processors?
Hope will do the trick!

Luca