Index: stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/HeuristicLab.Problems.DataAnalysis.Symbolic-3.4.csproj
===================================================================
--- stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/HeuristicLab.Problems.DataAnalysis.Symbolic-3.4.csproj	(revision 17104)
+++ stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/HeuristicLab.Problems.DataAnalysis.Symbolic-3.4.csproj	(revision 17105)
@@ -107,9 +107,7 @@
       <Private>False</Private>
     </Reference>
-    <Reference Include="Google.Protobuf, Version=3.6.1.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Google.Protobuf.3.6.1\lib\net45\Google.Protobuf.dll</HintPath>
-    </Reference>
     <Reference Include="HEAL.Attic, Version=1.0.0.0, Culture=neutral, PublicKeyToken=ba48961d6f65dcec, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\HEAL.Attic.1.0.0-pre02\lib\net461\HEAL.Attic.dll</HintPath>
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\bin\HEAL.Attic.dll</HintPath>
     </Reference>
     <Reference Include="HeuristicLab.Problems.DataAnalysis.Symbolic.NativeInterpreter-0.1, Version=0.0.0.1, Culture=neutral, PublicKeyToken=ba48961d6f65dcec, processorArchitecture=MSIL">
@@ -123,7 +121,4 @@
     </Reference>
     <Reference Include="System.Drawing" />
-    <Reference Include="System.Drawing.Common, Version=4.0.0.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\System.Drawing.Common.4.5.1\lib\net461\System.Drawing.Common.dll</HintPath>
-    </Reference>
     <Reference Include="System.Xml.Linq">
       <RequiredTargetFramework>3.5</RequiredTargetFramework>
@@ -295,5 +290,4 @@
     <Compile Include="TreeMatching\SymbolicExpressionTreePhenotypicSimilarityCalculator.cs" />
     <None Include="HeuristicLab.snk" />
-    <None Include="packages.config" />
     <None Include="Plugin.cs.frame" />
     <None Include="Properties\AssemblyInfo.cs.frame" />
Index: stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs
===================================================================
--- stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs	(revision 17104)
+++ stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Interpreter/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs	(revision 17105)
@@ -445,5 +445,5 @@
             Label c1 = il.DefineLabel();
             CompileInstructions(il, state, ds);
-            il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0); // > 0
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 0.0); // > 0
             il.Emit(System.Reflection.Emit.OpCodes.Cgt);
             il.Emit(System.Reflection.Emit.OpCodes.Brfalse, c1);
@@ -460,10 +460,10 @@
             CompileInstructions(il, state, ds);
             for (int i = 1; i < nArgs; i++) {
-              il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0); // > 0
+              il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 0.0); // > 0
               il.Emit(System.Reflection.Emit.OpCodes.Cgt);
               il.Emit(System.Reflection.Emit.OpCodes.Brfalse, falseBranch);
               CompileInstructions(il, state, ds);
             }
-            il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0); // > 0
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 0.0); // > 0
             il.Emit(System.Reflection.Emit.OpCodes.Cgt);
             il.Emit(System.Reflection.Emit.OpCodes.Brfalse, falseBranch);
@@ -485,5 +485,5 @@
               // complex definition because of special properties of NaN  
               il.Emit(System.Reflection.Emit.OpCodes.Dup);
-              il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0); // <= 0        
+              il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 0.0); // <= 0        
               il.Emit(System.Reflection.Emit.OpCodes.Ble, nextArgBranch);
               il.Emit(System.Reflection.Emit.OpCodes.Br, resultBranch);
@@ -493,5 +493,5 @@
             }
             il.MarkLabel(resultBranch);
-            il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0); // > 0
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 0.0); // > 0
             il.Emit(System.Reflection.Emit.OpCodes.Cgt);
             il.Emit(System.Reflection.Emit.OpCodes.Brtrue, trueBranch);
@@ -506,5 +506,5 @@
         case OpCodes.NOT: {
             CompileInstructions(il, state, ds);
-            il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0); // > 0
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 0.0); // > 0
             il.Emit(System.Reflection.Emit.OpCodes.Cgt);
             il.Emit(System.Reflection.Emit.OpCodes.Conv_R8); // convert to float64
@@ -518,10 +518,10 @@
         case OpCodes.XOR: {
             CompileInstructions(il, state, ds);
-            il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0);
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 0.0);
             il.Emit(System.Reflection.Emit.OpCodes.Cgt);// > 0
 
             for (int i = 1; i < nArgs; i++) {
               CompileInstructions(il, state, ds);
-              il.Emit(System.Reflection.Emit.OpCodes.Ldc_I4_0);
+              il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 0.0);
               il.Emit(System.Reflection.Emit.OpCodes.Cgt);// > 0
               il.Emit(System.Reflection.Emit.OpCodes.Xor);
Index: stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Plugin.cs.frame
===================================================================
--- stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Plugin.cs.frame	(revision 17104)
+++ stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Plugin.cs.frame	(revision 17105)
@@ -42,5 +42,5 @@
   [PluginDependency("HeuristicLab.Optimization.Operators", "3.3")]
   [PluginDependency("HeuristicLab.Parameters", "3.3")]
-  [PluginDependency("HeuristicLab.Persistence", "3.3")]
+  [PluginDependency("HeuristicLab.Attic", "1.0")]
   [PluginDependency("HeuristicLab.Problems.DataAnalysis", "3.4")]
   [PluginDependency("HeuristicLab.Problems.Instances", "3.3")]
Index: stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/packages.config
===================================================================
--- stable/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/packages.config	(revision 17104)
+++ 	(revision )
@@ -1,7 +1,0 @@
-﻿<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="Google.Protobuf" version="3.6.1" targetFramework="net461" />
-  <package id="HEAL.Attic" version="1.0.0-pre02" targetFramework="net461" />
-  <package id="System.Drawing.Common" version="4.5.1" targetFramework="net461" />
-  <package id="System.Numerics.Vectors" version="4.5.0" targetFramework="net45" />
-</packages>
