Error building for android: "Poco::Timestamp has not been declared"

Hi all,

I am trying to build an android application with OF. The application runs in two other computers. However, it does not work on mine. I am using a mac.

I run the command “make AndroidDebug” in the project folder, and this is the first error I have (the other errors seem to be related to this):

In file included from /Library/openFrameworks/addons/ofxHTTP/libs/ofxHTTP/src/Cookie.cpp:26:0:
/Library/openFrameworks/addons/ofxHTTP/libs/ofxHTTP/include/ofx/HTTP/Cookie.h:44:55: error: 'Poco::Timestamp' has not been declared
     Cookie(const Poco::Net::HTTPCookie& cookie, Poco::Timestamp createdAt);

I have installed poco, but nothing changes afterwards.

What can I do to solve this?
Thanks,
jl