Error when setting up data streams

Elastic Stack Elasticsearch
1

Hello,

currently, we're using daily indices for logging events and I want to change that to data streams. I followed the steps out of the elasticsearch engineer course and also from the site "Set up a data stream".
When trying to create one, I receive the following error:

{
  "error" : {
    "root_cause" : [
      {
        "type" : "illegal_state_exception",
        "reason" : "[_data_stream_timestamp] meta field has been disabled"
      }
    ],
    "type" : "illegal_state_exception",
    "reason" : "[_data_stream_timestamp] meta field has been disabled"
  },
  "status" : 500
}

Sadly, google couldn't help me. Is there any way to fix this?

Thanks in advance

2

Any ideas?

3

Can you share the request you are making please.