diff --git a/include/CrossLang.hpp b/include/CrossLang.hpp
index a524a88..32192b3 100644
--- a/include/CrossLang.hpp
+++ b/include/CrossLang.hpp
@@ -1427,7 +1427,7 @@ class GC {
         ~GC();
 };
 
-
+    std::string GetObjectTypeString(TObject obj);
     std::string ToString(GC* gc, TObject obj);
 
     class GCList : public THeapObject
diff --git a/src/assembler/asm.cpp b/src/assembler/asm.cpp
index b1b5ddf..30bfe17 100644
--- a/src/assembler/asm.cpp
+++ b/src/assembler/asm.cpp
@@ -192,6 +192,7 @@ namespace Tesses::CrossLang {
             while(!IsSym("}",false))
             {
                 auto name = ReadIdent();
+                
                 if(name == "add")
                 {
                     instrs.push_back(std::make_shared<SimpleChunkInstruction>(ADD));
@@ -541,6 +542,9 @@ namespace Tesses::CrossLang {
                     auto lblName = lbl_prefix + "_" + ReadIdent();
                     instrs.push_back(std::make_shared<LabelChunkInstruction>(lblName));
                 }
+                else {
+                    throw std::runtime_error("NOT IMPLEMENTED: " + name);
+                }
             }
         }
         void EnsureSymbol(std::string txt)
@@ -1048,7 +1052,8 @@ namespace Tesses::CrossLang {
                     }
                     if(chk)
                     {
-                        chunks[chunkId].second.push_back(std::make_shared<ClosureInstruction>(PushChunk(chk->data),chk->scoped));
+                        auto item = std::make_shared<ClosureInstruction>(PushChunk(chk->data),chk->scoped);
+                        chunks[chunkId].second.push_back(item);
                     }
                     if(reso)
                     {
diff --git a/src/assembler/disasm.cpp b/src/assembler/disasm.cpp
index 14b72b4..1577369 100644
--- a/src/assembler/disasm.cpp
+++ b/src/assembler/disasm.cpp
@@ -622,6 +622,9 @@ namespace Tesses::CrossLang {
                         
                     }
                         break;
+                    default:
+                        printf("ILL: %i\n", (int)code[i-1]);
+                        break;
                 }
 
                 buffer.push_back('\n');
diff --git a/src/runtime_methods/std.cpp b/src/runtime_methods/std.cpp
index 20aa028..06675d4 100644
--- a/src/runtime_methods/std.cpp
+++ b/src/runtime_methods/std.cpp
@@ -946,25 +946,23 @@ namespace Tesses::CrossLang
         }
         return nullptr;
     }
-  
-    static TObject TypeOf(GCList& ls, std::vector<TObject> args)
+    std::string GetObjectTypeString(TObject _obj)
     {
-        if(args.size() < 1) return "Undefined";
-        if(std::holds_alternative<std::regex>(args[0])) return "Regex";
-        if(std::holds_alternative<Undefined>(args[0])) return "Undefined";
-        if(std::holds_alternative<std::nullptr_t>(args[0])) return "Null";
-        if(std::holds_alternative<bool>(args[0])) return "Boolean";
-        if(std::holds_alternative<int64_t>(args[0])) return "Long";
-        if(std::holds_alternative<double>(args[0])) return "Double";
-        if(std::holds_alternative<char>(args[0])) return "Char";
-        if(std::holds_alternative<MethodInvoker>(args[0])) return "MethodInvoker";
-        if(std::holds_alternative<std::string>(args[0])) return "String";
+        if(std::holds_alternative<std::regex>(_obj)) return "Regex";
+        if(std::holds_alternative<Undefined>(_obj)) return "Undefined";
+        if(std::holds_alternative<std::nullptr_t>(_obj)) return "Null";
+        if(std::holds_alternative<bool>(_obj)) return "Boolean";
+        if(std::holds_alternative<int64_t>(_obj)) return "Long";
+        if(std::holds_alternative<double>(_obj)) return "Double";
+        if(std::holds_alternative<char>(_obj)) return "Char";
+        if(std::holds_alternative<MethodInvoker>(_obj)) return "MethodInvoker";
+        if(std::holds_alternative<std::string>(_obj)) return "String";
         
-        if(std::holds_alternative<Tesses::Framework::Filesystem::VFSPath>(args[0])) return "Path";
-        if(std::holds_alternative<TDateTime>(args[0])) return "DateTime";
-        if(std::holds_alternative<THeapObjectHolder>(args[0]))
+        if(std::holds_alternative<Tesses::Framework::Filesystem::VFSPath>(_obj)) return "Path";
+        if(std::holds_alternative<TDateTime>(_obj)) return "DateTime";
+        if(std::holds_alternative<THeapObjectHolder>(_obj))
         {
-            auto obj = std::get<THeapObjectHolder>(args[0]).obj;
+            auto obj = std::get<THeapObjectHolder>(_obj).obj;
             auto dict = dynamic_cast<TDictionary*>(obj);
             auto dynDict = dynamic_cast<TDynamicDictionary*>(obj);
             
@@ -1051,6 +1049,12 @@ namespace Tesses::CrossLang
 
         return "Object";
     }
+  
+    static TObject TypeOf(GCList& ls, std::vector<TObject> args)
+    {
+        if(args.size() < 1) return "Undefined";
+        return GetObjectTypeString(args[0]);
+    }
     
      TObject ByteArray(GCList& ls, std::vector<TObject> args)
     {
diff --git a/src/vm/vm.cpp b/src/vm/vm.cpp
index d71dfac..60bd75b 100644
--- a/src/vm/vm.cpp
+++ b/src/vm/vm.cpp
@@ -6192,7 +6192,8 @@ namespace Tesses::CrossLang {
             }
             else
             {
-                throw VMException("[DECLAREVARIABLE] Can't pop string.");
+
+                throw VMException("[DECLAREVARIABLE] Can't pop string, got type " + GetObjectTypeString(key) + " = " + ToString(gc,key) + ".");
             }
         }
         return false;