Please help me.Thanks.
According to the book:"Java Enterprise Edition with BEA WebLogic Server",I 
go to src\c03 directory,and execute command:make all.I get the 
error:c:\wlsbook\src\c03\java\jsw\c03\Customer.java:30: error while
writing jsw.c03.Customer: serverclasses\jsw\c03\Customer.class (The system 
cannot find the path specified)
public class Customer
       ^
1 error
make: *** [c:\wlsbook\src\c03\serverclasses\jsw\c03\Customer.class] Error 1