When uploading some class or interface which has structured constants, for example:

constants:
BEGIN OF co_msgty,
abort TYPE symsgty VALUE 'A',
error TYPE symsgty VALUE 'E',
exit TYPE symsgty VALUE 'X',
status TYPE symsgty VALUE 'S',
info TYPE symsgty VALUE 'I',
warning TYPE symsgty VALUE 'W',
END OF co_msgty .

The inner components are imported without line breaks. If there are many components, a syntax error occurs.
PS: The error occurs in the daily builds I have downloaded few days ago (SAPlink_Daily.nugg (2015-03-08 rev. 396) / SAPlink-plugins_Daily.nugg (2015-03-07 rev. 133))