I am reading the yesod book - http://www.yesodweb.com/book/basics Can someone help me resolve the following issue? amitava$ wai-handler-devel 3000 HelloWorld withHelloWorld Attempting to interpret your app... Compile failed: Could not find module `Yesod': Use -v to see a list of the files searched for. Furthermore, the -v option is not recognized by wai-handler-dev. I am assuming this is a message from the underlying compiler. How do I pass compiler/interpreter flags from wai-devel-handler? Thanks & Regards, Amitava Shee There are two ways of constructing a software design. One is to make it so simple that there are obviously no deficiencies; the other is to make it so complicated that there are no obvious deficiencies. The first method is far more difficult. -- C. A. R. Hoare The Emperor's Old Clothes, CACM February 1981