Exporter: writes exception messages to terminal
Load some data, do Menu bar > File > Save => terminal shows messages like
Exception in bool nsx::ExperimentExporter::writeData(const std::map<std::string, DataSet *>): error: can not cast Variant from d to NSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE
Similar when exporting at some later stage.
Edited by Wuttke, Joachim