ImportError: cannot import name '_grouped_size_compiled_for_decode_kernels' from 'flashinfer.decode'

[Hutlustc]

I build from source and the version of flashinfer is 0.1.6

pip install -e .
Obtaining file:///home/hutl/api/flashinfer/python
  Preparing metadata (setup.py) ... done
Installing collected packages: flashinfer
  DEPRECATION: Legacy editable install of flashinfer==0.1.6 from file:///home/hutl/api/flashinfer/python (setup.py develop) is deprecated. pip 25.0 will enforce this behaviour change. A possible replacement is to add a pyproject.toml or enable --use-pep517, and use setuptools >= 64. If the resulting installation is not behaving as expected, try using --config-settings editable_mode=compat. Please consult the setuptools documentation for more information. Discussion can be found at https://github.com/pypa/pip/issues/11457
  Running setup.py develop for flashinfer
Successfully installed flashinfer-0.1.6

When I ran the demo of sglang, it gave me an error

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/home/hutl/api/sglang/python/sglang/launch_server.py", line 6, in <module>
    from sglang.srt.server import launch_server
  File "/home/hutl/api/sglang/python/sglang/srt/server.py", line 49, in <module>
    from sglang.srt.managers.data_parallel_controller import (
  File "/home/hutl/api/sglang/python/sglang/srt/managers/data_parallel_controller.py", line 29, in <module>
    from sglang.srt.managers.scheduler import run_scheduler_process
  File "/home/hutl/api/sglang/python/sglang/srt/managers/scheduler.py", line 61, in <module>
    from sglang.srt.managers.tp_worker import TpModelWorker
  File "/home/hutl/api/sglang/python/sglang/srt/managers/tp_worker.py", line 27, in <module>
    from sglang.srt.model_executor.model_runner import ModelRunner
  File "/home/hutl/api/sglang/python/sglang/srt/model_executor/model_runner.py", line 44, in <module>
    from sglang.srt.layers.attention.flashinfer_backend import FlashInferAttnBackend
  File "/home/hutl/api/sglang/python/sglang/srt/layers/attention/flashinfer_backend.py", line 33, in <module>
    from flashinfer.decode import _grouped_size_compiled_for_decode_kernels
ImportError: cannot import name '_grouped_size_compiled_for_decode_kernels' from 'flashinfer.decode' (/home/hutl/api/flashinfer/python/flashinfer/decode.py)

I tried reconfiguring the environment but it didn't work.

Are there any other possible solutions?

[merrymercy]

The new version of flashinfer dropped this function. Please use an older version of copy this function from the older version (e.g., v0.1.6, v0.1.5)