1 files changed, 15 insertions, 0 deletions
diff --git a/pkg/config/error.go b/pkg/config/error.go
index c49b6a9..41a323c 100644
--- a/pkg/config/error.go
+++ b/pkg/config/error.go
@@ -90,3 +90,18 @@ func newInvalidTokenError(token string) error {
 		token: token,
 	}
 }
+
+// Invalid trainStop field error
+type InvalidTrainStopError struct {
+	trainStop string
+}
+
+func (e *InvalidTrainStopError) Error() string {
+	return fmt.Sprintf("Invalid trainStop %s : it must be a string that lookslike \"stop_area:SNCF:87723502\" (make sure to quote the string because of the colon characters)", e.trainStop)
+}
+
+func newInvalidTrainStopError(trainStop string) error {
+	return &InvalidTrainStopError{
+		trainStop: trainStop,
+	}
+}