exit status 1 expected '}' before ':' token

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zulfizie:
Hi im getting this error " exit status 1 expected '}' before ':' token "

my error code is

String json = { "deviceDefault@2017idp2group9": "deviceDefault@FAVORIOT", "data": {"light":"ON"} } ;

im getting this code from

https://iotworld.co/2017/05/01/create-your-first-iot-application-by-connecting-arduino-to-favoriot-platform/

Im sorry because this my first time post so i dont know proper way to post this problem.
Hope u guys can help me thank you.

The code in that link uses

    String json = "{\"device_developer_id\":\""+DEVICE+"\",\"data\":{\"Light\":\""+txt+"\"}}";

which doesn't look anything like your statement. Theirs compiles. Yours doesn't. Coincidence? I don't think so.