This is error message:
I
In file included from C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/Print.h:26,
from C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/Stream.h:26,
from C:\Users\user\Desktop\arduino-1.0\libraries\DHT/../Wire/Wire.h:24,
from C:\Users\user\Desktop\arduino-1.0\libraries\DS1307\DS1307.cpp:3:
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:116: error: declaration of C function 'StringSumHelper& operator+(const StringSumHelper&, const char*)' conflicts with
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:115: error: previous declaration 'StringSumHelper& operator+(const StringSumHelper&, const String&)' here
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:117: error: declaration of C function 'StringSumHelper& operator+(const StringSumHelper&, char)' conflicts with
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:116: error: previous declaration 'StringSumHelper& operator+(const StringSumHelper&, const char*)' here
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:118: error: declaration of C function 'StringSumHelper& operator+(const StringSumHelper&, unsigned char)' conflicts with
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:117: error: previous declaration 'StringSumHelper& operator+(const StringSumHelper&, char)' here
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:119: error: declaration of C function 'StringSumHelper& operator+(const StringSumHelper&, int)' conflicts with
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:118: error: previous declaration 'StringSumHelper& operator+(const StringSumHelper&, unsigned char)' here
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:120: error: declaration of C function 'StringSumHelper& operator+(const StringSumHelper&, unsigned int)' conflicts with
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:119: error: previous declaration 'StringSumHelper& operator+(const StringSumHelper&, int)' here
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:121: error: declaration of C function 'StringSumHelper& operator+(const StringSumHelper&, long int)' conflicts with
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:120: error: previous declaration 'StringSumHelper& operator+(const StringSumHelper&, unsigned int)' here
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:122: error: declaration of C function 'StringSumHelper& operator+(const StringSumHelper&, long unsigned int)' conflicts with
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/WString.h:121: error: previous declaration 'StringSumHelper& operator+(const StringSumHelper&, long int)' here
C:\Users\user\Desktop\arduino-1.0\libraries\DS1307\DS1307.cpp: In member function 'void DS1307::read()':
C:\Users\user\Desktop\arduino-1.0\libraries\DS1307\DS1307.cpp:23: error: call of overloaded 'write(int)' is ambiguous
C:\Users\user\Desktop\arduino-1.0\libraries\DHT/../Wire/Wire.h:55: note: candidates are: virtual size_t TwoWire::write(uint8_t)
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/Print.h:49: note: size_t Print::write(const char*)
C:\Users\user\Desktop\arduino-1.0\libraries\DS1307\DS1307.cpp:31: error: 'class TwoWire' has no member named 'receive'
C:\Users\user\Desktop\arduino-1.0\libraries\DS1307\DS1307.cpp: In member function 'void DS1307::save()':
C:\Users\user\Desktop\arduino-1.0\libraries\DS1307\DS1307.cpp:39: error: call of overloaded 'write(int)' is ambiguous
C:\Users\user\Desktop\arduino-1.0\libraries\DHT/../Wire/Wire.h:55: note: candidates are: virtual size_t TwoWire::write(uint8_t)
C:\Users\user\Desktop\arduino-1.0\hardware\arduino\cores\arduino/Print.h:49: note: size_t Print::write(const char*)