catkin_make error ROS melodic beginner tutorials creating service and client

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Hi, I'm new to ubuntu and ROS, and I'm learning through the tutorials here http://wiki.ros.org/ROS/Tutorials. I've followed each instruction there until writing a simple publisher, subscriber, service, and client just fine with the python. But when I try the C++ tutorial, I get this error when doing catkin_make. Any suggestion?

I'm on Ubuntu Mate 18.04 with ROS melodic

/usr/include/wctype.h:103:24: error: 'wint_t' was not declared in this scope
 extern int iswupper_l (wint_t __wc, locale_t __locale) __THROW;
                        ^~~~~~
/usr/include/wctype.h:103:24: note: suggested alternative: 'uint8_t'
 extern int iswupper_l (wint_t __wc, locale_t __locale) __THROW;
                        ^~~~~~
                        uint8_t
/usr/include/wctype.h:103:46: error: expected primary-expression before '__locale'
 extern int iswupper_l (wint_t __wc, locale_t __locale) __THROW;
                                              ^~~~~~~~
/usr/include/wctype.h:103:54: error: expression list treated as compound expression in initializer [-fpermissive]
 extern int iswupper_l (wint_t __wc, locale_t __locale) __THROW;
                                                      ^
/usr/include/wctype.h:108:25: error: 'wint_t' was not declared in this scope
 extern int iswxdigit_l (wint_t __wc, locale_t __locale) __THROW;
                         ^~~~~~
/usr/include/wctype.h:93:24: note: suggested alternative: 'uint8_t'
 extern int iswpunct_l (wint_t __wc, locale_t __locale) __THROW;
                        ^~~~~~
                        uint8_t
/usr/include/wctype.h:93:46: error: expected primary-expression before '__locale'
 extern int iswpunct_l (wint_t __wc, locale_t __locale) __THROW;
                                              ^~~~~~~~
/usr/include/wctype.h:93:54: error: expression list treated as compound expression in initializer [-fpermissive]
 extern int iswpunct_l (wint_t __wc, locale_t __locale) __THROW;
                                                      ^
/usr/include/wctype.h:98:24: error: 'wint_t' was not declared in this scope
 extern int iswspace_l (wint_t __wc, locale_t __locale) __THROW;
                        ^~~~~~
/usr/include/wctype.h:108:25: note: suggested alternative: 'uint8_t'
 extern int iswxdigit_l (wint_t __wc, locale_t __locale) __THROW;
                         ^~~~~~
                         uint8_t
/usr/include/wctype.h:108:47: error: expected primary-expression before '__locale'
 extern int iswxdigit_l (wint_t __wc, locale_t __locale) __THROW;
                                               ^~~~~~~~
/usr/include/wctype.h:108:55: error: expression list treated as compound expression in initializer [-fpermissive]
 extern int iswxdigit_l (wint_t __wc, locale_t __locale) __THROW;
                                                       ^
/usr/include/wctype.h:113:24: error: 'wint_t' was not declared in this scope
 extern int iswblank_l (wint_t __wc, locale_t __locale) __THROW;
                        ^~~~~~
/usr/include/wctype.h:113:24: note: suggested alternative: 'uint8_t'
 extern int iswblank_l (wint_t __wc, locale_t __locale) __THROW;
                        ^~~~~~
                        uint8_t
/usr/include/wctype.h:113:46: error: expected primary-expression before '__locale'
 extern int iswblank_l (wint_t __wc, locale_t __locale) __THROW;
                                              ^~~~~~~~
/usr/include/wctype.h:113:54: error: expression list treated as compound expression in initializer [-fpermissive]
 extern int iswblank_l (wint_t __wc, locale_t __locale) __THROW;
                                                      ^
/usr/include/wctype.h:122:24: error: 'wint_t' was not declared in this scope
 extern int iswctype_l (wint_t __wc, wctype_t __desc, locale_t __locale)
                        ^~~~~~
/usr/include/wctype.h:122:24: note: suggested alternative: 'uint8_t'
 extern int iswctype_l (wint_t __wc, wctype_t __desc, locale_t __locale)
                        ^~~~~~
                        uint8_t
/usr/include/wctype.h:98:24: note: suggested alternative: 'uint8_t'
 extern int iswspace_l (wint_t __wc, locale_t __locale) __THROW;
                        ^~~~~~
                        uint8_t
/usr/include/wctype.h:122:46: error: expected primary-expression before '__desc'
 extern int iswctype_l (wint_t __wc, wctype_t __desc, locale_t __locale)
                                              ^~~~~~
/usr/include/wctype.h:122:63: error: expected primary-expression before '__locale'
 ern int iswctype_l ...