i tried the two options, namely, removing the werror line from the <a href="http://configure.ac">configure.ac</a> file and second to remove the first declaration of the function pk_client_cancel(), but there is another error in make. gpk-enum.c:72: error: 'PK_STATUS_ENUM_WAITING_FOR_LOCK' undeclared here (not in a function) gpk-enum.c:108: error: initializer element is not constant gpk-enum.c:108: error: (near initialization for 'enum_status_animation[14].value') gpk-enum.c: In function 'gpk_error_enum_to_localised_text': gpk-enum.c:442: error: 'PK_ERROR_ENUM_INCOMPATIBLE_ARCHITECTURE' undeclared (first use in this function) gpk-enum.c:442: error: (Each undeclared identifier is reported only once gpk-enum.c:442: error: for each function it appears in.) gpk-enum.c:445: error: 'PK_ERROR_ENUM_NO_SPACE_ON_DEVICE' undeclared (first use in this function) gpk-enum.c: In function 'gpk_error_enum_to_localised_message': gpk-enum.c:624: error: 'PK_ERROR_ENUM_INCOMPATIBLE_ARCHITECTURE' undeclared (first use in this function) gpk-enum.c:627: error: 'PK_ERROR_ENUM_NO_SPACE_ON_DEVICE' undeclared (first use in this function) make[3]: *** [gpk-enum.o] Error 1 make[3]: Leaving directory `/home/pranjal/packagekit/gnome-packagekit/src' make[2]: *** [all] Error 2 make[2]: Leaving directory `/home/pranjal/packagekit/gnome-packagekit/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/pranjal/packagekit/gnome-packagekit' make: *** [all] Error 2 kindly help. --Regards --Pranjal Pandit