Uncaught TypeError: css is not a function

[System-9]

by load of this card, i get this error:
Log from UI http://*/cards/button-entity-row.js:15:15 Uncaught TypeError: css is not a function

[MissingDLL]

Anyone any news?

[nldxtd]

same issue here

[ultimateguy]

Same here

[2roy999]

#31 should fix it