Getting an error trying to run curl

[npentell]

I've been searching everywhere for info on how to use the json features and found very little info. I've also made several posts in the forum with no responses so I thought I might try here.

I am attempting to set something up where my LED lights turn on and off with the TV. I have set up a curl script but am getting an error. I'm running Windows 10. The curl is this

curl -X POST -i "http://192.168.1.247:8090/json-rpc" -d '{"command":"componentstate","componentstate":{"component":"ALL","state":false}}'

I'm getting an error that says

[hyperiond HTTPJSONRPC] (ERROR) Failed to parse json data from JsonRpc@::ffff:192.168.1.64: Error: illegal value at Line: 0, Column: 1

it's pretty vague to me since everything in on line 0. Especially, since i'm not very familiar with json and curl to begin with.

any help would be appreciated.

[Lord-Grey]

@npentell Your command is correct. It seems there is a problem with the rpc service.
I tried myself too and in rare circumstances, the command does not work as expected.
I suggest you restart hyperion and re-run the command again.

[npentell]

That makes sense because it seemed to run the first time I tried it but never ran again after that. I will try restarting. Do you know of any solutions in the works?