fix self-contained install on Windows

build/prepare-install-package.sh

@@ -97,11 +97,10 @@ for folder in ${folders[@]}; do
     rm -rf "$internalPath/assets"
 
     # runtime config for SMAPI
-    if [ $folder == "linux" ] || [ $folder == "macOS" ]; then
-        cp "$installAssets/runtimeconfig.unix.json" "$bundlePath/StardewModdingAPI.runtimeconfig.json"
-    else
-        cp "$installAssets/runtimeconfig.$folder.json" "$bundlePath/StardewModdingAPI.runtimeconfig.json"
-    fi
+    # This is identical to the one generated by the build, except that the min runtime version is
+    # set to 5.0.0 (instead of whatever version it was built with) and rollForward is set to latestMinor instead of
+    # minor.
+    cp "$installAssets/runtimeconfig.json" "$bundlePath/StardewModdingAPI.runtimeconfig.json"
 
     # installer DLL config
     if [ $folder == "windows" ]; then

src/SMAPI.Installer/assets/runtimeconfig.json

@@ -5,11 +5,12 @@
             {
                 "name": "Microsoft.NETCore.App",
                 "version": "5.0.0",
-                "rollForward": "major"
+                "rollForward": "latestMinor"
             }
         ],
         "configProperties": {
-            "System.Runtime.TieredCompilation": false
+            "System.Runtime.TieredCompilation": false,
+            "System.Reflection.Metadata.MetadataUpdater.IsSupported": false
         }
     }
 }

src/SMAPI.Installer/assets/runtimeconfig.windows.json

@@ -1,13 +0,0 @@
-{
-    "runtimeOptions": {
-        "tfm": "net5.0",
-        "framework": {
-            "name": "Microsoft.NETCore.App",
-            "version": "5.0.0",
-            "rollForward": "major"
-        },
-        "configProperties": {
-            "System.Runtime.TieredCompilation": false
-        }
-    }
-}

src/SMAPI/SMAPI.csproj

@@ -13,6 +13,9 @@
 
     <!--copy dependency DLLs to bin folder so we can include them in installer bundle -->
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
+
+    <!-- tiered compilation breaks Harmony -->
+    <TieredCompilation>false</TieredCompilation>
   </PropertyGroup>
 
   <Import Project="..\..\build\common.targets" />