Post message IllegalStateException

I tried to post a message to a private channel (conversation) and set the text, but I get an illegal state exception:

ERROR com.hubspot.slack.client.interceptors.http.DefaultHttpResponseDebugger: REQ<7> [chat_postMessage]: Failed interaction

IllegalStateException: SlackError{type=UNKNOWN, error=invalid_arguments}

{
  "ok" : false,
  "error" : "invalid_arguments",
  "deprecated_argument" : "as_user",
  "warning" : "missing_charset",
  "response_metadata" : {
    "warnings" : [ "missing_charset" ]
  }
}

Here is what I tried:

Result<ChatPostMessageResponse, SlackError> postResult = slackClient.postMessage(
         ChatPostMessageParams.builder()
                   .setText("hey there")
                   .setChannelId(getChannelId(channelName))
                   .build()
).join();

I’ve also tried passing in the channelName as the slack api suggests and followed the examples in this library but still gave me the same error.

Could anyone please take a look?

[hikuley]

I’m getting same error like the above error.

[victoriaaa234]

@szabowexler I just patched up the new release 1.7-SNAPSHOT, but unfortunately i still get this error 😦 not sure how to proceed. could you please take a look? It’s the same code as I wrote previously ^

{
  "ok" : false,
  "error" : "invalid_arguments",
  "deprecated_argument" : "as_user",
  "warning" : "missing_charset",
  "response_metadata" : {
    "warnings" : [ "missing_charset" ]
  }
}