( { { selectedRows. length } } ) 11| button. btn- success( ( click) = " addFreshUp( ) " ) Syntax Error: Assigning to rvalue. pug: 4: 11 2| / / - 関数呼び出しとして指定しています。 3| / / - このままではエラーが 発生します。 > 4| div( class= ' div- class' ( click) = ' play( ) ' ^ Syntax Error: Assigning to rvalue. div( class= ' div- class', ( click) = ' play( ) ' ). The creation of user, change, and error logs are introduced. It also can make it easier to find syntax errors when creating programs. from the Chapter 1 Term Project assignment and the design techniques shown in this chapter,. Basic class structure in the dog.