From a1cc424543c009f3f38fb4c535c3c62cbe8c5ef4 Mon Sep 17 00:00:00 2001
From: Cristian Maglie <c.maglie@arduino.cc>
Date: Wed, 9 Oct 2024 12:19:44 +0200
Subject: [PATCH] Handle nil properites

---
 internal/arduino/libraries/libraries.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/internal/arduino/libraries/libraries.go b/internal/arduino/libraries/libraries.go
index eb47a2ab84c..025443488c3 100644
--- a/internal/arduino/libraries/libraries.go
+++ b/internal/arduino/libraries/libraries.go
@@ -127,7 +127,10 @@ func (library *Library) MarshalBinary(out io.Writer, prefix *paths.Path) error {
 		return nil
 	}
 	writeProperties := func(in *properties.Map) error {
-		keys := in.Keys()
+		var keys []string
+		if in != nil {
+			keys = in.Keys()
+		}
 		if err := binary.Write(out, binary.NativeEndian, uint16(len(keys))); err != nil {
 			return err
 		}