C# 8.0 のnull許容参照型を有効化

[opentween/open-tween.git] / OpenTween / Api / JsonUtils.cs

diff --git a/OpenTween/Api/JsonUtils.cs b/OpenTween/Api/JsonUtils.cs
index ece4051..c237fba 100644 (file)
--- a/OpenTween/Api/JsonUtils.cs
+++ b/OpenTween/Api/JsonUtils.cs
@@ -19,6 +19,8 @@
 // the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
 // Boston, MA 02110-1301, USA.
 
+#nullable enable
+
 using System.Text;
 
 namespace OpenTween.Api