diff --git a/src/Debug/MetaAttributes/EcsMetaAttribute.cs b/src/Debug/MetaAttributes/EcsMetaAttribute.cs
index 7cf48f4..58b986a 100644
--- a/src/Debug/MetaAttributes/EcsMetaAttribute.cs
+++ b/src/Debug/MetaAttributes/EcsMetaAttribute.cs
@@ -7,11 +7,12 @@ namespace DCFApixels.DragonECS
 
     internal unsafe static class EcsMetaAttributeHalper
     {
+        internal const string EMPTY_NO_SENSE_MESSAGE = "With empty parameters, this attribute makes no sense.";
         [ThreadStatic]
         private static string[] _splitBuffer;
         public static string[] Split(char separator, string value)
         {
-            if(_splitBuffer == null)
+            if (_splitBuffer == null)
             {
                 _splitBuffer = new string[128];
             }
@@ -24,7 +25,7 @@ namespace DCFApixels.DragonECS
                 {
                     if (reader.current != null)
                     {
-                        if(_splitBuffer.Length == bufferIndex)
+                        if (_splitBuffer.Length == bufferIndex)
                         {
                             Array.Resize(ref _splitBuffer, _splitBuffer.Length << 1);
                         }
@@ -33,7 +34,7 @@ namespace DCFApixels.DragonECS
                 }
             }
 
-            string[] result = new string[bufferIndex]; 
+            string[] result = new string[bufferIndex];
             for (int i = 0; i < bufferIndex; i++)
             {
                 result[i] = _splitBuffer[i];
diff --git a/src/Debug/MetaAttributes/MetaGroupAttribute.cs b/src/Debug/MetaAttributes/MetaGroupAttribute.cs
index 80816ad..feaa150 100644
--- a/src/Debug/MetaAttributes/MetaGroupAttribute.cs
+++ b/src/Debug/MetaAttributes/MetaGroupAttribute.cs
@@ -12,7 +12,7 @@ namespace DCFApixels.DragonECS
         public const char SEPARATOR = '/';
         public readonly MetaGroup Data;
 
-        [Obsolete("With empty parameters, this attribute makes no sense.")]
+        [Obsolete(EcsMetaAttributeHalper.EMPTY_NO_SENSE_MESSAGE)]
         public MetaGroupAttribute() { }
         public MetaGroupAttribute(string name)
         {
diff --git a/src/Debug/MetaAttributes/MetaTagsAttribute.cs b/src/Debug/MetaAttributes/MetaTagsAttribute.cs
index 7831a72..1f1600f 100644
--- a/src/Debug/MetaAttributes/MetaTagsAttribute.cs
+++ b/src/Debug/MetaAttributes/MetaTagsAttribute.cs
@@ -13,7 +13,7 @@ namespace DCFApixels.DragonECS
             get { return _tags; }
         }
 
-        [Obsolete("With empty parameters, this attribute makes no sense.")]
+        [Obsolete(EcsMetaAttributeHalper.EMPTY_NO_SENSE_MESSAGE)]
         public MetaTagsAttribute() { }
         public MetaTagsAttribute(string tags)
         {
diff --git a/src/Debug/TypeMeta.cs b/src/Debug/TypeMeta.cs
index 988b69a..2b538bc 100644
--- a/src/Debug/TypeMeta.cs
+++ b/src/Debug/TypeMeta.cs
@@ -1,5 +1,4 @@
 using DCFApixels.DragonECS.Internal;
-using DCFApixels.DragonECS.RunnersCore;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
diff --git a/src/Injections/Utils/Exceptions.cs b/src/Injections/Utils/Exceptions.cs
deleted file mode 100644
index 3af1656..0000000
--- a/src/Injections/Utils/Exceptions.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-using System;
-
-namespace DCFApixels.DragonECS.DI.Internal
-{
-    internal class Throw
-    {
-        public static void ArgumentNull()
-        {
-            throw new ArgumentNullException();
-        }
-    }
-}
diff --git a/src/Injections/Utils/Exceptions.cs.meta b/src/Injections/Utils/Exceptions.cs.meta
deleted file mode 100644
index 412cb97..0000000
--- a/src/Injections/Utils/Exceptions.cs.meta
+++ /dev/null
@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: 790577d4144473d448401799f01ddf50
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: