> On Nov 28, 2010, at 6:58 AM, 邢泉 wrote: > >> Hi: >> Help Me! Thanks! >> > (master check-color) >> check-color: this is a procedure, so it must be applied to arguments >> (which requires using a parenthesis before the name)
On 11/29/10 10:10 PM, Matthias Felleisen wrote:
How did you produce this error message?
My guess: Q. Xing defined master rather than using the master teachpack, which results in this error.
Make sure you add the master.ss teachpack by going to Language > Add Teachpack... then select master.ss. Remove any definition of master that you have written.
David _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
