From b786ec8e744b0c1a48b58873a14adb4e4f30eec3 Mon Sep 17 00:00:00 2001 From: Lidang Jiang <119769478+Lidang-Jiang@users.noreply.github.com> Date: Tue, 5 May 2026 22:10:45 +0800 Subject: [PATCH] [Bugfix] Suggest upgrading Transformers for tokenizer class errors (#38099) Signed-off-by: Lidang-Jiang --- vllm/tokenizers/hf.py | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/vllm/tokenizers/hf.py b/vllm/tokenizers/hf.py index 03c71adb8d..b4248e229a 100644 --- a/vllm/tokenizers/hf.py +++ b/vllm/tokenizers/hf.py @@ -190,7 +190,10 @@ class CachedHfTokenizer(TokenizerLike): "is a custom tokenizer not yet available in the " "HuggingFace transformers library, consider " "setting `trust_remote_code=True` in LLM or using " - "the `--trust-remote-code` flag in the CLI." + "the `--trust-remote-code` flag in the CLI. If the " + "model was created with a newer version of " + "transformers, consider upgrading: " + "`uv pip install --upgrade transformers`" ) raise RuntimeError(err_msg) from e else: