iphone - iPhone SDK の不正な URL

Question

URL http://crescerance.com/School/isummit/speakers.html

Isummit[12923:1d013] エラー Domain=NSURLErrorDomain Code=-1000 "bad URL" UserInfo=0x91aa490 {NSUnderlyingError=0x91aa1d0 "bad URL", NSLocalizedDescription=bad URL}