ERROR with chimera.uchime?

Hi,

I am not getting to run chimera.uchime command. I am getting 0 size in .accnos file after running chimera.uchime, So further i am not able to perform next command. please advice where i am missing? Should i use some specific parameter in filter step. Thanks

stability.trim.contigs.good.unique.filter.unique.precluster.denovo.uchime.accnos