M-x package-install RET dart-mode RET fails on emacs with message
Compiling file /home/julien/.emacs.d/elpa/dart-mode-20190117.1644/dart-mode.el at Sat Jan 19 12:10:08 2019
Entering directory ‘/home/julien/.emacs.d/elpa/dart-mode-20190117.1644/’
In dart-indent-line-relative:
dart-mode.el:374:26:Warning: ‘previous-line’ is for interactive use only; use
‘forward-line’ with negative argument instead.
dart-mode.el:439:1:Error: Symbol’s function definition is void: dart--identifier
M-x package-install RET dart-mode RET
fails on emacs with message