diff --git a/Directory.Build.props b/Directory.Build.props
index 8b597629a..f0a3dd1ef 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -26,6 +26,8 @@
   <PropertyGroup>
     <!-- Workaround: https://github.com/dotnet/sdk/issues/19050 -->
     <DisableImplicitNamespaceImports>true</DisableImplicitNamespaceImports>
+    <!-- Workaround: https://github.com/dotnet/runtime/issues/55992 -->
+    <UseAppHost>False</UseAppHost>
     <AppendTargetFrameworkToOutputPath Condition=" '$(AppendTargetFrameworkToOutputPath)' == '' ">False</AppendTargetFrameworkToOutputPath>
     <BaseIntermediateOutputPath Condition=" '$(BaseIntermediateOutputPath)' == '' ">obj\</BaseIntermediateOutputPath>
   </PropertyGroup>
diff --git a/tools/generator/SourceWriters/Attributes/RegisterAttr.cs b/tools/generator/SourceWriters/Attributes/RegisterAttr.cs
index 81e897804..ad7abd52a 100644
--- a/tools/generator/SourceWriters/Attributes/RegisterAttr.cs
+++ b/tools/generator/SourceWriters/Attributes/RegisterAttr.cs
@@ -32,12 +32,12 @@ public override void WriteAttribute (CodeWriter writer)
 			var sb = new StringBuilder ();
 
 			if (UseGlobal)
-				sb.Append ($"[global::Android.Runtime.Register (\"{Name}\"");
+				sb.Append ((string) $"[global::Android.Runtime.Register (\"{Name}\"");
 			else
-				sb.Append ($"[Register (\"{Name}\"");
+				sb.Append ((string) $"[Register (\"{Name}\"");
 
 			if ((Signature.HasValue () || Connector.HasValue ()) && !UseShortForm)
-				sb.Append ($", \"{Signature}\", \"{Connector}\"");
+				sb.Append ((string) $", \"{Signature}\", \"{Connector}\"");
 
 			if (DoNotGenerateAcw && !AcwLast)
 				sb.Append (", DoNotGenerateAcw=true");