[🐛BUG] 有个空指针异常能帮忙看看吗？

[alittlebitcool]

总是报错这个问题： Traceback (most recent call last): File "/home/izuna/zyx/RecBole-GNN-main/run_recbole_gnn.py", line 19, in run_recbole_gnn(model=args.model, dataset=args.dataset, config_file_list=config_file_list) File "/home/izuna/zyx/RecBole-GNN-main/recbole_gnn/quick_start.py", line 48, in run_recbole_gnn best_valid_score, best_valid_result = trainer.fit( File "/home/izuna/zyx/rec/recbole/trainer/trainer.py", line 466, in fit valid_score, valid_result = self._valid_epoch( File "/home/izuna/zyx/rec/recbole/trainer/trainer.py", line 285, in _valid_epoch valid_result = self.evaluate( File "/opt/miniconda/envs/bole/lib/python3.10/site-packages/torch/autograd/grad_mode.py", line 27, in decorate_context return func(*args, **kwargs) File "/home/izuna/zyx/rec/recbole/trainer/trainer.py", line 618, in evaluate interaction, scores, positive_u, positive_i = eval_func(batched_data) File "/home/izuna/zyx/rec/recbole/trainer/trainer.py", line 556, in _neg_sample_batch_eval batch_user_num = positive_u[-1] + 1 TypeError: 'NoneType' object is not subscriptable

我的配置文件如下： embedding_size: 64 leakyrelu_alpha: 0.2 dropout_local: 0. dropout_global: 0.5 dropout_gcn: 0. loss_type: CE gnn_transform: sess_graph

global

build_global_graph: True sample_num: 12 hop: 1 field: ~

topk: [10, 20, 30, 40, 50, 60, 70, 80, 90, 100] use_gpu: True gpu_id: 0 # 根据实际情况设置 GPU 设备编号 seed: 2

dataset config

field_separator: " " #指定数据集field的分隔符 seq_separator: " " #指定数据集中token_seq或者float_seq域里的分隔符 USER_ID_FIELD: user_id #指定用户id域 ITEM_ID_FIELD: item_id #指定物品id域 RATING_FIELD: rating #指定打分rating域

指定从什么文件里读什么列，这里就是从ml-1m.inter里面读取user_id, item_id, rating, timestamp这四列

load_col: inter: [user_id, item_id, timestamp, rating] TIME_FIELD: timestamp

training settings

epochs: 2000 #训练的最大轮数

epochs: 2000 #训练的最大轮数 train_batch_size: 2048 learner: adam #使用的pytorch内置优化器 learning_rate: 0.01 #学习率 training_neg_sample_num: 0 #负采样数目 LABEL_FIELD: label #指定标签域 eval_type: 2

[konglongbaka]

我最近也是遇到了这个问题，请问你解决了吗，我是在复现SRGNN和LESSR时会有