View Compilation Error

0_0_1779139_26147.c: In function `main':
0_0_1779139_26147.c:4: error: `nbsp' undeclared (first use in this function)
0_0_1779139_26147.c:4: error: (Each undeclared identifier is reported only once
0_0_1779139_26147.c:4: error: for each function it appears in.)