Qt compilation error

[d_stranz]

Your Qt library was compiled with the internal macro "_ITERATOR_DEBUG_LEVEL" set to 2. Your BasicExcel.cpp file was compiled with the same macro set to 0. You cannot link two pieces of code where this macro is defined differently. Since I assume you do not want to rebuild Qt, you should follow these instructions to set the value to compile your example code (of course, change "0" to "2").