A1604: Invalid character detected at the beginning of the line: <Character>

[ERROR]

Description

The character detected on column 1 is not valid. For the macro assembler everything starting on column 1 is supposed to be a label. The following characters are allowed at the beginning of a label:

All alphabetical characters ('a'.. 'z', 'A', 'Z').
`.' and `_'

<Character> is the character detected on column 1

Example

  @label:    DS.B 1

  4label2:   DS.B 2

Tips

Replace the specified character by a '.' or a '_'.

Example

  _label:    DS.B 1

  .label2:   DS.B 2