How do you resolve 'ostream' ambiguous symbol error?

Hi,

 

Can someone help me by pointing out what need to be done to resolve the following error when I declared log4cxx name space inside the header file of a C++ class?

 

   D:\VisualStudio\VC98\INCLUDE\ios.h(159) : error C2872: 'ostream' : ambiguous symbol

 

I can declare and use LoggerPtr as global variable in the C++ file, yet when declared inside a C++ header file, got the above error.

 

I would like to declare the LoggerPtr instance as a member variable of each class instead of as a global variable.

 

Thanks!

 

jml

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