do not support .NET 3.5 anymore.

Assets/uREPL/Scripts/Core/Evaluator.cs

@@ -83,19 +83,14 @@ static public CompileResult Evaluate(string code, bool autoCompleteComma = true)
 		// eval the code using Mono.
 		object ret = null;
 		bool hasReturnValue = false;
-
-		var originalOutput = Mono.MessageOutput;
-		var errorWriter = new System.IO.StringWriter();
 		bool isPartial = false;
-		Mono.MessageOutput = errorWriter;
 		try {
 			isPartial = Mono.Evaluate(code, out ret, out hasReturnValue) != null;
 		} catch (System.Exception e) {
-			errorWriter.Write(e.Message);
+			UnityEngine.Debug.LogError(e.Message);
 		}
-		Mono.MessageOutput = originalOutput;
 
-		var error = errorWriter.ToString();
+		var error = Mono.lastOutput;
 		if (!string.IsNullOrEmpty(error)) {
 			error = error.Replace("{interactive}", "");
 			var lastLineBreakPos = error.LastIndexOf('\n');
@@ -106,7 +101,6 @@ static public CompileResult Evaluate(string code, bool autoCompleteComma = true)
 			result.error = error;
 			return result;
 		}
-		errorWriter.Dispose();
 
 		if (isPartial) {
 			result.type = CompileResult.Type.Partial;

Assets/uREPL/Scripts/Core/Mono.cs

@@ -1,22 +1,52 @@
-namespace uREPL
+using System.IO;
+using System.Text;
+
+namespace uREPL
 {
 
-#if NET_4_6
+public class MonoMessageReporter : TextWriter
+{
+    public string lastOutput { get; private set; }
+
+    public override void Write(string value)
+    {
+        lastOutput = value;
+    }
+
+    public override void WriteLine(string value)
+    {
+        lastOutput = value;
+    }
+
+    public void Reset()
+    {
+        lastOutput = "";
+    }
+
+    public override Encoding Encoding
+    {
+        get { return Encoding.Default; }
+    }
+}
 
 static public class Mono
 {
 	static global::Mono.CSharp.Evaluator evaluator;
-
-	static public System.IO.StringWriter MessageOutput
+	static MonoMessageReporter reporter = new MonoMessageReporter();
+	static public string lastOutput
 	{
-		get { return null; }
-		set	{}
+		get
+		{
+			var output = reporter.lastOutput;
+			reporter.Reset();
+			return output;
+		}
 	}
 
 	static public void Initialize()
 	{
 		var settings = new global::Mono.CSharp.CompilerSettings();
-		var printer = new global::Mono.CSharp.ConsoleReportPrinter();
+		var printer = new global::Mono.CSharp.ConsoleReportPrinter(reporter);
 		var context = new global::Mono.CSharp.CompilerContext(settings, printer);
 		evaluator = new global::Mono.CSharp.Evaluator(context);
 	}
@@ -57,56 +87,4 @@ static public string GetUsing()
 	}
 }
 
-#else 
-
-static public class Mono
-{
-	static public System.IO.TextWriter MessageOutput
-	{
-		get { return global::Mono.CSharp.Evaluator.MessageOutput; }
-		set { global::Mono.CSharp.Evaluator.MessageOutput = value; }
-	}
-
-	static public void Initialize()
-	{
-	}
-
-	static public void ReferenceAssembly(System.Reflection.Assembly asm)
-	{
-		global::Mono.CSharp.Evaluator.ReferenceAssembly(asm);
-	}
-
-	static public object Evaluate(string input)
-	{
-		return global::Mono.CSharp.Evaluator.Evaluate(input);
-	}
-
-	static public string Evaluate(string input, out object result, out bool result_set)
-	{
-		return global::Mono.CSharp.Evaluator.Evaluate(input, out result, out result_set);
-	}
-
-	static public bool Run(string input)
-	{
-		return global::Mono.CSharp.Evaluator.Run(input);
-	}
-
-	static public string[] GetCompletions(string input, out string prefix)
-	{
-		return global::Mono.CSharp.Evaluator.GetCompletions(input, out prefix);
-	}
-
-	static public string GetVars()
-	{
-		return global::Mono.CSharp.Evaluator.GetVars();
-	}
-
-	static public string GetUsing()
-	{
-		return global::Mono.CSharp.Evaluator.GetUsing();
-	}
-}
-
-#endif
-
 }

Packages/manifest.json

@@ -0,0 +1,4 @@
+{
+	"dependencies": {
+	}
+}

ProjectSettings/ProjectVersion.txt

@@ -1 +1 @@
-m_EditorVersion: 2017.2.0f3
+m_EditorVersion: 2017.3.0b11