Unexpected error when tajo starts

[Odin Guillermo Caudillo Gallegos]

Hi.
I'm getting the following error when i run the start-tajo.sh shell:


/opt/tajo-0.11.0/bin/start-tajo.sh: 58: /opt/tajo-0.11.0/bin/start-tajo.sh:
Syntax error: "(" unexpected

I just downloaded it, excecuted the tar command, and start-tajo.sh.

Thanks