Getting unknown type: "tail_sampling" error while trying tail_sampling in OTEL Collector. Please help.

[Sriramm07]

I am getting the following error when I try to add tail_sampling under processors section in the otel collector's config.yaml
Please let me know what I've gotten wrong or how do I get it to work ?

I'd really appreciate some help. Thanks

`root@ubuntu:/etc/otelcol# otelcol --config=file:/etc/otelcol/config.yaml
Error: failed to get config: cannot unmarshal the configuration: 1 error(s) decoding:

• error decoding 'processors': unknown type: "tail_sampling" for id: "tail_sampling" (valid values: [batch memory_limiter attributes resource span probabilistic_sampler filter])
  2024/04/25 12:47:13 collector server run finished with error: failed to get config: cannot unmarshal the configuration: 1 error(s) decoding:

• error decoding 'processors': unknown type: "tail_sampling" for id: "tail_sampling" (valid values: [batch memory_limiter attributes resource span probabilistic_sampler filter])`

BELOW IS MY FULL OTEL CONFIG:

`extensions:
health_check:
pprof:
endpoint: 0.0.0.0:1777
zpages:
endpoint: 0.0.0.0:55679

receivers:
otlp: # the OTLP receiver the app is sending traces to
protocols:
http:
endpoint: 0.0.0.0:4318

processors:
tail_sampling:
decision_wait: 10s
num_traces: 10000
expected_new_traces_per_sec: 10
policies:
[
{
name: test-policy-5,
type: status_code,
status_code: {status_codes: [ERROR, UNSET]}
},
{
name: latency-policy,
type: latency,
latency: {threshold_ms: 300, upper_threshold_ms: 59999}
},
]

exporters:
otlphttp:
endpoint: "http://0.0.0.0:4300"

logging:
loglevel: info

service:
pipelines:
traces:
receivers: [otlp]
processors: [tail_sampling]
exporters: [logging, otlphttp]

~ `