An object id occurred twice.
GtkBuilder found an attribute that
it doesn’t understand.
A function could not be found. This often happens
when symbols are set to be kept private. Compiling code with -rdynamic or using the
gmodule-export-2.0 pkgconfig module can fix this problem.
An object id is unknown.
The specified property is unknown for the object class.
The specified signal is unknown for the object class.
GtkBuilder found a tag that
it doesn’t understand.
A type-func attribute didn’t name
a function that returns a GType.
GtkBuilder couldn’t parse
some attribute value.
An attribute that is required by
GtkBuilder was missing.
A required property value was missing.
A specified object type is of the same type or derived from the type of the composite class being extended with builder XML.
The wrong type was specified in a composite class’s template XML
The input contained a tag that GtkBuilder
can’t handle.
The input file requires a newer version of GTK.
Error codes that identify various errors that can occur while using
GtkBuilder.