I am facing an error in connecting metaerg.db. Kindly help to overcome this issue ***DBI_ connect('dbname=db/sqlite3/metaerg.db','',...) failed: unable to open database file at /NGStools/metaerg/bin/metaerg.pl line 162.*** 
I am facing an error in connecting metaerg.db. Kindly help to overcome this issue
DBI_ connect('dbname=db/sqlite3/metaerg.db','',...) failed: unable to open database file at /NGStools/metaerg/bin/metaerg.pl line 162.