diff --git a/include/teascript/StackMachine.hpp b/include/teascript/StackMachine.hpp
index 4a0af14..b714742 100644
--- a/include/teascript/StackMachine.hpp
+++ b/include/teascript/StackMachine.hpp
@@ -558,7 +558,7 @@ private:
                     // TODO: Handle rContext.dialect.auto_define_unknown_identifiers on throw unknown_identifier
                     // TODO: can this be merged with ASTNode_Assign ?
                     try {
-                        mStack[s - 2] = rContext.SetValue( id.GetValue<std::string>(), val, current_instr.payload.template GetValue<bool>() );
+                        mStack[s - 2] = rContext.SetValue( id.template GetValue<std::string>(), val, current_instr.payload.template GetValue<bool>() );
                     } catch( ... ) {
                         HandleException( std::current_exception() );
                         run = false;
@@ -588,7 +588,7 @@ private:
                         continue;
                     }
                     try {
-                        mStack[s - 2] = rContext.AddValueObject( id.GetValue<std::string>(), val.MakeShared() );
+                        mStack[s - 2] = rContext.AddValueObject( id.template GetValue<std::string>(), val.MakeShared() );
                     } catch( ... ) {
                         HandleException( std::current_exception() );
                         run = false;
@@ -611,7 +611,7 @@ private:
                         val.Detach( true ); // make copy
                     }
                     try {
-                        mStack[s - 2] = rContext.AddValueObject( id.GetValue<std::string>(), val.MakeShared().MakeConst() );
+                        mStack[s - 2] = rContext.AddValueObject( id.template GetValue<std::string>(), val.MakeShared().MakeConst() );
                     } catch( ... ) {
                         HandleException( std::current_exception() );
                         run = false;
@@ -685,7 +685,7 @@ private:
                     auto       &val = mStack[s - 1];
                     auto const &id  = mStack[s - 2];
                     auto       &obj = mStack[s - 3];
-                    auto       &tuple = obj.GetValue<Tuple>();
+                    auto       &tuple = obj.template GetValue<Tuple>();
                     bool const shared = current_instr.payload.template GetValue<bool>();
 
                     if( obj.IsConst() ) {
@@ -718,7 +718,7 @@ private:
                 } else {
                     auto &lhs = mStack.back();
                     auto &rhs = current_instr.payload;
-                    auto &tuple = lhs.GetValue<Tuple>();
+                    auto &tuple = lhs.template GetValue<Tuple>();
 
                     std::size_t  idx = static_cast<std::size_t>(-1);
                     if( rhs.GetTypeInfo()->IsSame( TypeString ) ) {
@@ -741,7 +741,7 @@ private:
                 if( stack_error( 2 ) ) [[unlikely]] {
                     continue;
                 } else {
-                    auto param_count = mStack.back().GetValue<U64>();
+                    auto param_count = mStack.back().template GetValue<U64>();
                     if( stack_error( param_count + 1 + 1 ) ) [[unlikely]] {
                         continue;
                     }
@@ -770,7 +770,7 @@ private:
                     continue;
                 } else {
                     auto const s = mStack.size();
-                    auto param_count = mStack[s-2].GetValue<U64>();
+                    auto param_count = mStack[s-2].template GetValue<U64>();
                     if( stack_error( param_count + 1 + 1 + 1 ) ) [[unlikely]] {
                         continue;
                     }
@@ -882,7 +882,7 @@ private:
                         run = false;
                         continue;
                     }
-                    auto &tuple = lhs.GetValue<Tuple>();
+                    auto &tuple = lhs.template GetValue<Tuple>();
                     std::size_t  idx = static_cast<std::size_t>(-1);
                     if( rhs.GetTypeInfo()->IsSame( TypeString ) ) {
                         idx = tuple.IndexOfKey( rhs.template GetValue<String>() );
@@ -890,7 +890,7 @@ private:
                         idx = static_cast<std::size_t>(rhs.GetAsInteger());
                     }
                     if( idx == static_cast<std::size_t>(-1) ) {
-                        HandleException( std::make_exception_ptr( exception::unknown_identifier( rhs.GetValue<String>() ) ) );
+                        HandleException( std::make_exception_ptr( exception::unknown_identifier( rhs.template GetValue<String>() ) ) );
                         run = false;
                         continue;
                     } else if( not tuple.ContainsIdx( idx ) ) {
@@ -953,21 +953,21 @@ private:
 
                      // get the sequence
                     auto &seq_val = mStack[s - 1];
-                    if( not seq_val.GetTypeInfo()->IsSame<IntegerSequence>() && not seq_val.GetTypeInfo()->IsSame<Tuple>() ) {
+                    if( not seq_val.GetTypeInfo()->template IsSame<IntegerSequence>() && not seq_val.GetTypeInfo()->template IsSame<Tuple>() ) {
                         HandleException( std::make_exception_ptr( exception::eval_error( "Forall loop can actually only iterate over an IntegerSequence/Tuple!" ) ) );
                         run = false;
                         continue;
                     }
 
                     //FIXME: if seq_val is a sequence already we should use a reference for in later versions it will be possible to manipulate it elsewhere in the loop.
-                    auto  seq = seq_val.GetTypeInfo()->IsSame<Tuple>()
-                        ? IntegerSequence( 0LL, static_cast<Integer>(seq_val.GetValue<Tuple>().Size() - 1), 1LL )
-                        : seq_val.GetValue<IntegerSequence>();
+                    auto  seq = seq_val.GetTypeInfo()->template IsSame<Tuple>()
+                        ? IntegerSequence( 0LL, static_cast<Integer>(seq_val.template GetValue<Tuple>().Size() - 1), 1LL )
+                        : seq_val.template GetValue<IntegerSequence>();
                     seq.Reset();
 
                     // create the index variable
                     // TODO: add mDebugInfo SourceLocation!
-                    mStack[s - 2] = rContext.AddValueObject( mStack[s - 2].GetValue<std::string>(), ValueObject( seq.Current(), ValueConfig(ValueShared, ValueMutable)));
+                    mStack[s - 2] = rContext.AddValueObject( mStack[s - 2].template GetValue<std::string>(), ValueObject( seq.Current(), ValueConfig(ValueShared, ValueMutable)));
 
                     // store the seqeunce
                     mStack[s - 1] = ValueObject( std::move(seq), ValueConfig(ValueShared, ValueMutable));
@@ -978,7 +978,7 @@ private:
                     continue;
                 } else {
                     auto const  s = mStack.size();
-                    auto &seq = mStack[s - 2].GetValue<IntegerSequence>();
+                    auto &seq = mStack[s - 2].template GetValue<IntegerSequence>();
                     if( seq.Next() ) {
                         mStack[s - 3].AssignValue( seq.Current() );
                         mStack.pop_back(); // clear previous result
@@ -999,11 +999,11 @@ private:
                 if( stack_error( 2 ) ) [[unlikely]] {
                     continue;
                 } else {
-                    auto param_count = mStack.back().GetValue<U64>();
+                    auto param_count = mStack.back().template GetValue<U64>();
                     if( stack_error( param_count + 1 + 1 ) ) [[unlikely]] {
                         continue;
                     }
-                    auto func = mStack[ mStack.size() - (param_count + 1 + 1)].GetValue<FunctionPtr>(); // copy is intended!!
+                    auto func = mStack[ mStack.size() - (param_count + 1 + 1)].template GetValue<FunctionPtr>(); // copy is intended!!
                     auto cfunc = std::dynamic_pointer_cast<CompiledFuncBase>(func);
                     if( cfunc ) {
                         mCallStack.emplace_back( current_instr.payload.template GetValue<std::string>(), mCurrent + 1, cfunc->GetProgram(), func );
@@ -1089,7 +1089,7 @@ private:
                     continue;
                 } else {
                     // we need a working copy of the param count for decrement!
-                    mStack.emplace_back( mStack.back().GetValue<U64>() );
+                    mStack.emplace_back( mStack.back().template GetValue<U64>() );
                 }
                 break;
             case eTSVM_Instr::ParamSpecClean:
@@ -1097,7 +1097,7 @@ private:
                 if( stack_error( 3 ) ) [[unlikely]] {
                     continue;
                 } else {
-                    auto const left_params = mStack.back().GetValue<U64>();
+                    auto const left_params = mStack.back().template GetValue<U64>();
                     if( left_params != 0 ) [[unlikely]] {
                         //NOTE: we need SourceLoc of the caller! But the caller is different for each call.
                         //      Here we know that callstack is at least 2 (we and the caller). The ret address - 1 is the CallFunc instruction which might carry a source loc.
@@ -1106,7 +1106,7 @@ private:
                         run = false;
                         continue;
                     } else {
-                        auto orig_params = mStack[mStack.size() - 2].GetValue<U64>();
+                        auto orig_params = mStack[mStack.size() - 2].template GetValue<U64>();
                         mStack.pop_back(); // working param count
                         mStack.pop_back(); // orig param count
                         while( orig_params > 0 ) {  // each param
@@ -1123,7 +1123,7 @@ private:
                     continue;
                 } else {
                     auto const pos = mStack.size() - 2;
-                    auto param_count = mStack[pos].GetValue<U64>();
+                    auto param_count = mStack[pos].template GetValue<U64>();
                     if( param_count < 1 ) [[unlikely]] { // huh?
                         //NOTE: we need SourceLoc of the caller! But the caller is different for each call.
                         //      Here we know that callstack is at least 2 (we and the caller). The ret address - 1 is the CallFunc instruction which might carry a source loc.
@@ -1148,7 +1148,7 @@ private:
                     continue;
                 } else {
                     auto const pos = mStack.size() - 2;
-                    auto param_count = mStack[pos].GetValue<U64>();
+                    auto param_count = mStack[pos].template GetValue<U64>();
                     if( param_count > 0 ) { // there are still parameters given by the caller.
                         // add current param to end (after the id)
                         mStack.push_back( std::move( mStack[pos - (1 + param_count)] ) );
@@ -1261,12 +1261,12 @@ private:
     {
         std::size_t  idx = static_cast<std::size_t>(-1);
         if( rId.GetTypeInfo()->IsSame( TypeString ) ) {
-            idx = rTuple.IndexOfKey( rId.GetValue<std::string>() );
+            idx = rTuple.IndexOfKey( rId.template GetValue<std::string>() );
         } else {
             idx = static_cast<std::size_t>(rId.GetAsInteger());
         }
         if( idx == static_cast<std::size_t>(-1) ) {
-            HandleException( std::make_exception_ptr( exception::unknown_identifier( rId.GetValue<std::string>() ) ) );
+            HandleException( std::make_exception_ptr( exception::unknown_identifier( rId.template GetValue<std::string>() ) ) );
             return idx;
         } else if( not rTuple.ContainsIdx( idx ) ) {
             HandleException( std::make_exception_ptr( exception::out_of_range() ) );
@@ -1301,7 +1301,7 @@ private:
             }
         }
         if( rId.GetTypeInfo()->IsSame( TypeString ) ) {
-            std::string const &identifier = rId.GetValue<std::string>();
+            std::string const &identifier = rId.template GetValue<std::string>();
             if( not rTuple.AppendKeyValue( identifier, as_const ? val.MakeShared().MakeConst() : val.MakeShared() ) ) {
                 HandleException( std::make_exception_ptr( exception::redefinition_of_variable( identifier ) ) );
                 return idx;