Do nothing when MonoMod is not working

.gitignore

@@ -251,3 +251,4 @@ paket-files/
 # JetBrains Rider
 .idea/
 *.sln.iml
+**/*.vshistory/

ModEntry.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Reflection;
+using Android.OS;
 using Harmony;
 using Microsoft.Xna.Framework.Content;
 using Microsoft.Xna.Framework.Graphics;
@@ -29,6 +30,8 @@ namespace StardewModdingAPI.Mods.CustomLocalization
 
         public override void Entry(IModHelper helper)
         {
+            if (Build.VERSION.SdkInt < BuildVersionCodes.M)
+                return;
             Instance = this;
             ModConfig = helper.ReadConfig<ModConfig>();
             ModPath = helper.DirectoryPath;

SMAPI.Mods.CustomLocalization.csproj

@@ -14,6 +14,9 @@
     <Reference Include="0Harmony">
       <HintPath>..\libs\0Harmony.dll</HintPath>
     </Reference>
+    <Reference Include="Mono.Android">
+      <HintPath>..\libs\Mono.Android.dll</HintPath>
+    </Reference>
     <Reference Include="MonoGame.Framework">
       <HintPath>..\libs\\MonoGame.Framework.dll</HintPath>
     </Reference>