have very little experience in this area and probably making a very basic mistake but I am trying to load the hg38 reference genome into a local instance of galaxy (not installed by myself) using ‘Create DBkey and reference genome’ using ‘hg38’ in the UCSC DBkey option box(es) but keep getting the following error message either

‘invalid DBkey”

or 

'Exception: Unable to determine filename for UCSC Genome for hg38: ['.', '..', 'est.fa.gz', 'est.fa.gz.md5', 'mrna.fa.gz', 'mrna.fa.gz.md5', 'refMrna.fa.gz', 'refMrna.fa.gz.md5', 'xenoMrna.fa.gz', 'xenoMrna.fa.gz.md5', 'xenoRefMrna.fa.gz', 'xenoRefMrna.fa.gz.md5', 'analysisSet', 'README.txt', 'hg38.2bit', 'hg38.agp.gz', 'hg38.chromFa.tar.gz', 'hg38.chromFaMasked.tar.gz', 'hg38.fa.align.gz', 'hg38.fa.gz', 'hg38.fa.masked.gz', 'hg38.fa.out.gz', 'hg38.trf.bed.gz', 'md5sum.txt’]