Right-click the file> after verification of this document syntax (V) error
Solution: Right Project -> "Properties" -> "Grammar & Framework" interface configuration items javaScript version will ECMAScript5.1 changed to 6.
Right-click the file> after verification of this document syntax (V) error
Solution: Right Project -> "Properties" -> "Grammar & Framework" interface configuration items javaScript version will ECMAScript5.1 changed to 6.