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Common Errors
=============
``parse error on input ‘-- | xxx’``
-----------------------------------
This is probably caused by the ``-- | xxx`` comment not following a declaration. I.e. use ``-- xxx`` instead. See :ref:`top-level-declaration`.
``parse error on input ‘-- $ xxx’``
-----------------------------------
You've probably commented out code like::
f x
$ xxx
``-- $`` is a special syntax for named chunks, see :ref:`named-chunks`. You can fix this by escaping the ``$``::
-- \$ xxx
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