Error while converting Str To Int

[SrgjanLDTeam]

num1 is a string with digits

and n1 is integer

but im getting error while converting them ..

im trying to do .. string to integer

  n1=stoi(num1);

if i comment the line .. the code works..

[JLBorges]

See: http://www.cplusplus.com/forum/beginner/120836/#msg657958