''is not a valid integer value是什么意思,如何解决

XXX is not a valid integer value Please enter a valid value.是什么意思 is not a valid date and time 请问:" is not a valid date this is not a valid serial number? Full name is NOT a valid "0.0 ' is not a valid timestamp Enter a valid value for this if y is a integer,then the least possible value of |23-5y|is The password you entered is not valid是什么意思 what is the least posutive integer that is not a Your alternative email address is not in a valid format