Exception in thread "main" java.lang.Error: Unresolved compilation problems: DataModel cannot be resolved to a type FileDataModel cannot be resolved to a type UserSimilarity cannot be resolved to a type PearsonCorrelationSimilarity cannot be resolved to a type UserNeighborhood cannot be resolved to a type NearestNUserNeighborhood cannot be resolved to a type Recommender cannot be resolved to a type GenericUserBasedRecommender cannot be resolved to a type RecommendedItem cannot be resolved to a type RecommendedItem cannot be resolved to a type
at mia.recommender.ch02.RecommenderIntro.main(RecommenderIntro.java:21) ================ Looks like your dev environment is not set up correctly. Pop over to the Mahout mailing list and bring details about what Mahout version you are using, what commands you are using and what kind of environment you are using. Check out https://mahout.apache.org/general/mailing-lists,-irc-and-archives.html for more info. ================= More Info: thanks for the pointer. MahOut: 0.9 Apache Maven 3.2.1 Eclipse: Kepler Release 2 Java: Latest 7 I went through all the possible recommendations for this book and also for MahOut The codes that are written for MahOut 0.5 looks like is not consistent to the latest version of MahOut and Maven, ect. I have even tried different versions or MahOut, no luck. The error looks like related to the DataModel or/and Reading the CVS data file. Looks like the program is not compiling correctly. I have set the environment like everyone else said, and I tried step by step, and looks like everything goes through and succeed. So, no error till the last point. When I try to run the program, then I get the error. Thanks ========================
