diff --git a/vendor/gopkg.in/jcmturner/gokrb5.v7/config/error.go b/vendor/gopkg.in/jcmturner/gokrb5.v7/config/error.go
new file mode 100644
index 0000000..1fbda51
--- /dev/null
+++ b/vendor/gopkg.in/jcmturner/gokrb5.v7/config/error.go
@@ -0,0 +1,30 @@
+package config
+
+import "fmt"
+
+// UnsupportedDirective error.
+type UnsupportedDirective struct {
+	text string
+}
+
+// Error implements the error interface for unsupported directives.
+func (e UnsupportedDirective) Error() string {
+	return e.text
+}
+
+// Invalid config error.
+type Invalid struct {
+	text string
+}
+
+// Error implements the error interface for invalid config error.
+func (e Invalid) Error() string {
+	return e.text
+}
+
+// InvalidErrorf creates a new Invalid error.
+func InvalidErrorf(format string, a ...interface{}) Invalid {
+	return Invalid{
+		text: fmt.Sprintf("invalid krb5 config "+format, a...),
+	}
+}