diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/Unity3DCsharpDotNet2ClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/Unity3DCsharpDotNet2ClientCodegen.java
index 66591eacac2..2a0aa006674 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/Unity3DCsharpDotNet2ClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/Unity3DCsharpDotNet2ClientCodegen.java
@@ -101,8 +101,12 @@ public class Unity3DCsharpDotNet2ClientCodegen extends DefaultCodegen implements
             additionalProperties.put("packageName", packageName);
         }
 
-        additionalProperties.put("clientPackage", clientPackage);
-
+        if (additionalProperties.containsKey("clientPackage")) {
+            this.setClientPackage((String) additionalProperties.get("clientPackage"));
+        } else {
+            additionalProperties.put("clientPackage", clientPackage);
+        }
+        
         supportingFiles.add(new SupportingFile("Configuration.mustache",
                 (sourceFolder + File.separator + clientPackage).replace(".", java.io.File.separator), "Configuration.cs"));
         supportingFiles.add(new SupportingFile("ApiClient.mustache",
@@ -110,12 +114,15 @@ public class Unity3DCsharpDotNet2ClientCodegen extends DefaultCodegen implements
         supportingFiles.add(new SupportingFile("ApiException.mustache",
                 (sourceFolder + File.separator + clientPackage).replace(".", java.io.File.separator), "ApiException.cs"));
         supportingFiles.add(new SupportingFile("packages.config.mustache", "vendor", "packages.config"));
-        supportingFiles.add(new SupportingFile("compile.mustache", "", "compile.bat"));
         supportingFiles.add(new SupportingFile("compile-mono.sh.mustache", "", "compile-mono.sh"));
         supportingFiles.add(new SupportingFile("README.md", "", "README.md"));
 
     }
 
+    public void setClientPackage(String clientPackage) {
+        this.clientPackage = clientPackage;
+    }
+
     public CodegenType getTag() {
         return CodegenType.CLIENT;
     }
diff --git a/modules/swagger-codegen/src/main/resources/Unity3DCsharpDotNet2/ApiClient.mustache b/modules/swagger-codegen/src/main/resources/Unity3DCsharpDotNet2/ApiClient.mustache
index ba4fdcf3c00..8e64db5af31 100644
--- a/modules/swagger-codegen/src/main/resources/Unity3DCsharpDotNet2/ApiClient.mustache
+++ b/modules/swagger-codegen/src/main/resources/Unity3DCsharpDotNet2/ApiClient.mustache
@@ -145,7 +145,7 @@ namespace {{packageName}}.Client
             if (obj is DateTime)
                 return ((DateTime)obj).ToString ("u");
             else if (obj is List<string>)
-                return String.Join(",", obj as List<string>);
+                return String.Join(",", (obj as List<string>).ToArray());
             else
                 return Convert.ToString (obj);
         }
diff --git a/modules/swagger-codegen/src/main/resources/Unity3DCsharpDotNet2/compile-mono.sh.mustache b/modules/swagger-codegen/src/main/resources/Unity3DCsharpDotNet2/compile-mono.sh.mustache
index 499b42a29a5..69c9bb8b2fd 100644
--- a/modules/swagger-codegen/src/main/resources/Unity3DCsharpDotNet2/compile-mono.sh.mustache
+++ b/modules/swagger-codegen/src/main/resources/Unity3DCsharpDotNet2/compile-mono.sh.mustache
@@ -2,7 +2,7 @@ wget -nc https://nuget.org/nuget.exe;
 mozroots --import --sync
 mono nuget.exe install vendor/packages.config -o vendor;
 mkdir -p bin;
-mcs -r:vendor/Newtonsoft.Json.7.0.1/lib/net20/Newtonsoft.Json.dll,\
+mcs -sdk:2 -r:vendor/Newtonsoft.Json.7.0.1/lib/net20/Newtonsoft.Json.dll,\
 vendor/RestSharp.Net2.1.1.11/lib/net20/RestSharp.Net2.dll,\
 System.Runtime.Serialization.dll \
 -target:library \
diff --git a/modules/swagger-codegen/src/main/resources/csharp/Newtonsoft.Json.dll b/modules/swagger-codegen/src/main/resources/csharp/Newtonsoft.Json.dll
deleted file mode 100644
index ae725c4b598..00000000000
Binary files a/modules/swagger-codegen/src/main/resources/csharp/Newtonsoft.Json.dll and /dev/null differ
diff --git a/modules/swagger-codegen/src/main/resources/csharp/RestSharp.dll b/modules/swagger-codegen/src/main/resources/csharp/RestSharp.dll
deleted file mode 100644
index a7331ed6e23..00000000000
Binary files a/modules/swagger-codegen/src/main/resources/csharp/RestSharp.dll and /dev/null differ