instead of declaring 'double err' as a variable, renamed it to 'err_ip; in gridfunc.cpp since 'err' is already declared as a global variable
instead of declaring 'double err' as a variable, renamed it to 'err_ip; in gridfunc.cpp since 'err' is already declared as a global variable

mfem/mfem,mfem/mfem,mfem/mfem,mfem/mfem,mfem/mfem