Makeblastdb Can'T Find My Fasta Files

I'm trying to make a nucleotide database for my sequences. After opening C:Program Files\NCBI\blast-2.2.28+> in the command line, I typed in

makeblastdb -in test_gene.fsa -parse_seqids -dbtype nucl

and I got the error message

Building a new db, current time: 07/11/2013 16:07:43
New DB name:   test_gene
New DB title:  Test_gene
Sequence type: Nucleotide
Keep Linkouts: T
Keep MBits: T
Maximum file size: 1000000000B
BLAST options error: File test_gene does not exist

Then I tried adding the pathway to find the file blast-2.2.28+>makeblastdb -in C:\Program_Files\NCBI\blast-2.2.28+\test_gene.fsa -parse_seqids -dbtype nucl and I got the same type of error as before. I'm new to this, sorry if this is obvious to fix.