Yes, I think it is a protocol version mismatch. I have received the same error with strfry v1.0.1 and I don't think relay.damus.io has upgraded yet.
I've had success with relay.westernbtc.com and several others.
I'm trying to integrate negentropy into coracle and running into some mysterious errors. I'm sending the following message to relay.damus.io:
```
["NEG-OPEN","NEG-78170247",{"kinds":[1],"authors":["97c70a44366a6535c145b333f973ea86dfdc2d7a99da618c40c64705ad98e322"]},"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"]
```
Damus responds with:
```
["NOTICE","ERROR: negentropy error: negentropy query missing elements"]
```
You can find the bulk of my code below. I'm relying on the latest version of Negentropy.js
https://github.com/coracle-social/welshman/blob/master/packages/net/src/Executor.ts#L94
Any hints? Is it a protocol mismatch? nostr:nprofile1qy88wumn8ghj7mn0wvhxcmmv9uq32amnwvaz7tmjv4kxz7fwv3sk6atn9e5k7tcpremhxue69uhkummnw3ez6ur4vgh8wetvd3hhyer9wghxuet59uq3wamnwvaz7tmrvyh8yetvv9ukzcnvv5hx7un89uq3gamnwvaz7tmjv4kxz7tpvfkx2tn0wfnj7qpqyxprsscnjw2e6myxz73mmzvnqw5kvzd5ffjya9ecjypc5l0gvgkskcrj9w nostr:nprofile1qyghwumn8ghj7mn0wd68ytnhd9hx2tcpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz9nhwden5te0wfjkccte9ekk7um5wgh8qatz9uqsuamnwvaz7tmwdaejumr0dshszxnhwden5te0v9e8gtnwdaehgunxwfjkz6mn9e3k7mf0qqsr9cvzwc652r4m83d86ykplrnm9dg5gwdvzzn8ameanlvut35wy3gwau2us nostr:nprofile1qyd8wumn8ghj7urewfsk66ty9enxjct5dfskvtnrdakj7qg3waehxw309ahx7um5wgh8w6twv5hszynhwden5te0dehhxarjw4jjucm0d5hsz8rhwden5te0wdshgetvd35hgefwdpa8yep3xsujucm0d5hsz3thwden5te0xaehyu3hvd58jcekwekxs7nsvvexsmpkd3uh2mn8wek82mmg0fex6aphxe4kyue5ddkhjergwfux7cttdd38zatpvshxcmmrv9kz7qpqye5ptcxfyyxl5vjvdjar2ua3f0hynkjzpx552mu5snj3qmx5pzjstgenpa
Yes, I think it is a protocol version mismatch. I have received the same error with strfry v1.0.1 and I don't think relay.damus.io has upgraded yet.
I've had success with relay.westernbtc.com and several others.