Don't crash if preferences ZIP needs to be overwritten during export.

1 files changed, 11 insertions, 1 deletions

diff --git a/src/tools/dcpomatic.cc b/src/tools/dcpomatic.cc
index 979672fb4..11181ae58 100644
--- a/src/tools/dcpomatic.cc
+++ b/src/tools/dcpomatic.cc
@@ -762,7 +762,17 @@ private:
 			);
 
 		if (dialog.ShowModal() == wxID_OK) {
-			save_all_config_as_zip(wx_to_std(dialog.GetPath()));
+			auto const path = boost::filesystem::path(wx_to_std(dialog.GetPath()));
+			if (boost::filesystem::exists(path)) {
+				boost::system::error_code ec;
+				boost::filesystem::remove(path, ec);
+				if (ec) {
+					error_dialog(nullptr, _("Could not remove existing preferences file"), std_to_wx(path.string()));
+					return;
+				}
+			}
+
+			save_all_config_as_zip(path);
 		}
 	}