Error: Can't open .cur_input

[20urc3]

Hi, I have been testing lately some programs that parse data from input file. I encounter the following issue:

I'm using this command:

afl-fuzz.exe -i corpus_in -o out -t 1000 -D DynamoRIO\bin32 -- fuzz_iterations 5000 -coverage_module "Reader.exe"-target_module "Reader.exe" -target_offset 0x1EA40 -nargs 1 -- "Reader.exe" '@@'

Any help? Many thanks 2ourc3