emacs-notmuch: A Xapian exception occurred parsing query

[Kai Wang]

When I use emacs-notmuch, in the notmuch-search mode, I press 't' and
select a tag, it gives a parsing query error:

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[Tue Feb  6 10:41:04 2018]
notmuch search: A Xapian exception occurred
A Xapian exception occurred parsing query: Syntax: <expression> AND <expression>
Query string was: * and tag:flagged
command: /usr/local/bin/notmuch search --format\=sexp --format-version\=4 --sort\=newest-first \*\ and\ tag\:flagged
exit status: 1
stderr:
notmuch search: A Xapian exception occurred
A Xapian exception occurred parsing query: Syntax: <expression> AND <expression>
Query string was: * and tag:flagged

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I know that may not a matter of notmuch, but I don't know where to ask
for the help.

Thank you!

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