Incorrect target modules does not error

[irenedea]

System Info

peft 0.12.0 transformers 4.43.1

Who can help?

No response

Information

• [ ] The official example scripts
• [ ] My own modified scripts

Tasks

• [ ] An officially supported task in the examples folder
• [ ] My own task or dataset (give details below)

Reproduction

from transformers import AutoModelForCausalLM, AutoConfig
from peft import LoraConfig, get_peft_model

config = AutoConfig.from_pretrained('meta-llama/Meta-Llama-3-8B', use_auth_token=False)
config.num_hidden_layers = 2
model = AutoModelForCausalLM.from_config(config)

peft_config = LoraConfig(
    target_modules=[
        'q_proj',
        'FAKE_TARGET_MODULE',
    ]
)

get_peft_model(model, peft_config)

Expected behavior

I expect it to error because of FAKE_TARGET_MODULE. However the code here only errors if none of the target modules are found. Thanks!