Fixed return value for deserialize() implementations. #3250

1 files changed, 4 insertions, 1 deletions

diff --git a/xs/src/libslic3r/Config.cpp b/xs/src/libslic3r/Config.cpp
index deb7d5c7e..9194548c7 100644
--- a/xs/src/libslic3r/Config.cpp
+++ b/xs/src/libslic3r/Config.cpp
@@ -63,7 +63,10 @@ ConfigBase::apply(const ConfigBase &other, bool ignore_nonexistent) {
         
         // not the most efficient way, but easier than casting pointers to subclasses
         bool res = my_opt->deserialize( other.option(*it)->serialize() );
-        if (!res) CONFESS("Unexpected failure when deserializing serialized value");
+        if (!res) {
+            std::string error = "Unexpected failure when deserializing serialized value for " + *it;
+            CONFESS(error.c_str());
+        }
     }
 }