Blast Fatal Error -Database Not Found

I am using blastall 2.2.26 on ubuntu for local databse blast for

Query: c4_n2_train.fasta;

Database: c4_n2_test.fasta;

With my database files in the same directory, but still I am getting FATAL ERROR

$ ls
c4_n2_test.fasta   c4_n2_train.fasta.phr  c4_n2_train.fasta.psq
c4_n2_train.fasta  c4_n2_train.fasta.pin  formatdb.log

$ blastall -p blastp -d ./c4_n2_train -i c4_n2_test.fasta -m 8
[blastall] FATAL ERROR: sp|Q83943_N13|1A_OLV2I: Database ./c4_n2_train was not found or does not exist

$ blastall -p blastp -d c4_n2_train -i c4_n2_test.fasta -m 8
[blastall] FATAL ERROR: sp|Q83943_N13|1A_OLV2I: Database c4_n2_train was not found or does not exist

Am I grossly missing out something. Any suggestions on how to trouble shoot this. Thank you.