my $unzipped = new IO::Uncompress::Gunzip $dirname."/".$table.".sql.gz" or die "IO::Uncompress::Gunzip failed: $GunzipError\n"; #### Use of uninitialized value $GunzipError in concatenation (.) or string at load_tables.pl line 67. #### my $unzipped = new IO::Uncompress::Gunzip $dirname."/".$table.".sql.gz" or die "$!";