Hi, I just merged develop to master and I have quickbook errors on my CI (see errors below). The exact same code compiled at 27. July 2019 at 13:47:19 CEST. Does anyone know something about this? Thanks, Raffi 05-Aug-2019 21:44:37 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/RS-BCB-DOX/library/tools/quickbook/src/include_paths.cpp:160:18: error: no member named 'directory_iterator' in namespace 'boost::filesystem'; did you mean 'directory_entry'? 05-Aug-2019 21:44:37 for (fs::directory_iterator dir_i(base_dir), dir_e; dir_i != dir_e; 05-Aug-2019 21:44:37 ~~~~^ 05-Aug-2019 21:44:37 ../../../boost/filesystem/path_traits.hpp:48:9: note: 'directory_entry' declared here 05-Aug-2019 21:44:37 class directory_entry; 05-Aug-2019 21:44:37 ^ 05-Aug-2019 21:44:37 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/RS-BCB-DOX/library/tools/quickbook/src/include_paths.cpp:160:61: error: use of undeclared identifier 'dir_i' 05-Aug-2019 21:44:37 for (fs::directory_iterator dir_i(base_dir), dir_e; dir_i != dir_e; 05-Aug-2019 21:44:37 ^ 05-Aug-2019 21:44:37 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/RS-BCB-DOX/library/tools/quickbook/src/include_paths.cpp:160:70: error: use of undeclared identifier 'dir_e' 05-Aug-2019 21:44:37 for (fs::directory_iterator dir_i(base_dir), dir_e; dir_i != dir_e; 05-Aug-2019 21:44:37 ^ 05-Aug-2019 21:44:37 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/RS-BCB-DOX/library/tools/quickbook/src/include_paths.cpp:161:16: error: use of undeclared identifier 'dir_i' 05-Aug-2019 21:44:37 ++dir_i) { 05-Aug-2019 21:44:37 ^ 05-Aug-2019 21:44:37 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/RS-BCB-DOX/library/tools/quickbook/src/include_paths.cpp:162:26: error: use of undeclared identifier 'dir_i' 05-Aug-2019 21:44:37 fs::path f = dir_i->path().filename(); 05-Aug-2019 21:44:37 ^ 05-Aug-2019 21:44:37 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/RS-BCB-DOX/library/tools/quickbook/src/include_paths.cpp:170:41: error: use of undeclared identifier 'dir_i' 05-Aug-2019 21:44:37 if (fs::is_regular_file(dir_i->status())) { 05-Aug-2019 21:44:37 ^ 05-Aug-2019 21:44:37 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/RS-BCB-DOX/library/tools/quickbook/src/include_paths.cpp:178:42: error: use of undeclared identifier 'dir_i' 05-Aug-2019 21:44:37 if (!fs::is_regular_file(dir_i->status())) { 05-Aug-2019 21:44:37 ^ 05-Aug-2019 21:44:37 7 errors generated.