Stephen torri <storri@xxxxxxxxx> writes: > ../../src/data_source/File_Data_Transfer_T.cpp:78: error: `obj' has > incomplete type > ../../src/data_source/File_Data_Transfer_T.cpp:78: error: storage size > of `obj' isn't known The error means that you are trying to create an object (named 'obj') but you are using a type which you have not fully defined. The compiler does not know how large the object should be. > typename Data_Type::worker_type obj (new Data_Type()); I don't know what Data_Type is, but it appears that it is not fully defined. For example, you might just have "class Data_Type;" without any definition of the class. > Is there a compiler flag that I should use? No. You need to fix your program. Ian
