Does someone know what "illegal start of expression" means?

Answer 1

Seems like a syntax error, post your code?

Maybe this helps:
https://stackoverflow.com/questions/24562950/java-error-illegal-start-of-expression

Answer 2

Usually happens to me when i try parse JSON string to a database or retrieving something encoded in JSON from a database. JSON starts with "[" so any result other than this will result in that error. Or it could be misnaming you variable etc. If you post the code, it may be helpful.