[sqlmap-users] Receiving invalid characters error message

[Oso D. <oso...@ya...>]

Hi there, I a new user of sqlmap and have run into a situation where sqlmap indicates that it has found an injection point of a GET query parameter using "Oracle AND time-based blind (heavy query - comment". I am able to use the brute force method to enumerate the column names of a table but when I try and do any other enumeration function, I get the following error messages. I have used both my home and work network plus 2 different systems and am using the most recent version from svn. 

 [ERROR] invalid character detected. retrying..
 [WARNING] increasing time delay to 2 seconds (due to invalid char)

I have let it run over night with the delay going up to 300 seconds but still no luck.  I am trying to figure out exactly what is causing this error condition and if there is anything I can do on my end to resolve it? I have also tried using the --text-only parameter.

thx.

O.