Pfthb

I am beginner user of C++ and I am having this problem since yesterday.
I have two header files:
'Builder.hpp' which includes declaration and definition of some enums and structs:

#ifndef BUILDER_HPP
 #define BUILDER_HPP

 #ifdef _DEFAULT_INCLUDES
 #include <AsDefault.h>
 #endif

 #include "../EcoLibs/EcoComLib/OpcUaCom.hpp"
 #include "LineCoordEngine.hpp"

 //Builder class help types
 enum BuildOpcUaType_enum
 
 //Some stuff
 ;

 enum BuildVariableTypes_enum
 
 //Some stuff
 ;

 struct BuildOpcUaLists_type
 
 //Some stuff
 ;

 //Builder class
 class Builder
 
 public:
 Builder();
 ~Builder();

 Machine *BuildOpcUaMachine(char serverUrl[UA_MAX_STRING], BuildOpcUaLists_type *lists, BuildOpcUaType_enum uaType);
 DataExchanger *BuildDataExchanger(unsigned short int machineIndex, unsigned short int machineTypeIndex);

 private:
 void CreateOpcUaList(//stuff); 
 void CreateCharNumber(//stuff);
 //Private variables declaration
 ;

#endif

The second header file is: 'Parser.hpp'.
I want to declare a variable of type 'BuildOpcUaType_enum' which is defined in 'Builder.hpp'. I included 'Builder.hpp' in 'Parser.hpp', but still getting an error saying:
BuildOpcUaType_enum does not name a type.

Parser.hpp:

#ifndef BUILDER_HPP
#define BUILDER_HPP

#include "Builder.hpp" 
#include <string>

using namespace std;

struct Attributes
 string name;
 string value;
;

BuildOpcUaType_enum en;
class Parser
 private:
 //Variables:
 Attributes attributes[10]; 
 unsigned int BufferIds[200];
 string connectionStrings[20];
 unsigned long int nFileLength, nOpenFileIdent, nXMLReaderIdent; 
 unsigned short int length, noOfOpenedStructs, readListIndex, writeListIndex, readListDestIndex, writeListSrcIndex;
 string comType, sErrorMessage, sStatusText, sXMLElementName, sXMLElementValue;
 string structNameAttValues[10];
 unsigned int TagId_Read[200];
 unsigned int TagId_Write[200];
 unsigned short int xmlData[10000];

 //Boolean variables:
 bool isArrayTag, isBufferIdTag, isDatatypeTag, isNameTag, bStart, isTagIdTag;

 //Constants:
 string sFilePath;
 string sDeviceName;

 //The rest? 
 BuildOpcUaType_enum en;

 public:
 Parser();
 ~Parser();
;
#endif

Your include guard in both header files is BUILDER_HPP. You need to use a unique one for each file (that's why it is usually the filename).

As it stands, you are not actually including anything from Builder.hpp, because #define BUILDER_HPP happens before #include "Builder.hpp" in Parser.hpp and so the include guard #ifndef BUILDER_HPP evaluates to false.