FEEL

When using the FEEL expression language, you must specify a valid expression.

Invalid FEEL expression

A common cause of this warning is using single quotes for a string literal. FEEL requires double quotes for strings, so an expression like 'type' is unparsable.

Valid FEEL expression

Use double quotes for string literals, for example "type", to make the expression valid.

References

• FEEL expressions
• FEEL Scala Playground to try out expressions
• Rule source