error about pretrain

[ichv16]

I have no idea why this error happend. Maybe someone have the same question before?

training arguments:

if_test: False
run_model: seqgan
k_label: 2
dataset: oracle
model_type: vanilla
loss_type: rsgan
if_real_data: False
cuda: True
device: 0
shuffle: False
gen_init: truncated_normal
dis_init: uniform
samples_num: 10000
vocab_size: 5000
mle_epoch: 150
clas_pre_epoch: 10
adv_epoch: 2000
inter_epoch: 15
batch_size: 64
max_seq_len: 20
start_letter: 1
padding_idx: 0
gen_lr: 0.01
gen_adv_lr: 0.0001
dis_lr: 0.0001
clip_norm: 5.0
pre_log_step: 10
adv_log_step: 20
train_data: dataset/oracle.txt
test_data: dataset/testdata/oracle_test.txt
temp_adpt: exp
temperature: 1
ora_pretrain: True
gen_pretrain: False
dis_pretrain: False
adv_g_step: 1
rollout_num: 16
gen_embed_dim: 32
gen_hidden_dim: 32
goal_size: 16
step_size: 4
mem_slots: 1
num_heads: 2
head_size: 256
d_step: 5
d_epoch: 3
adv_d_step: 5
adv_d_epoch: 3
dis_embed_dim: 64
dis_hidden_dim: 64
num_rep: 64
use_nll_oracle: True
use_nll_gen: True
use_nll_div: True
use_bleu: True
use_self_bleu: True
use_clas_acc: True
use_ppl: False
log_file: log/log_0731_1038_46.txt
save_root: save/20200731/oracle/seqgan_vanilla_lt-rsgan_sl20_temp1_T0731_1038_46/
signal_file: run_signal.txt
tips:
====================================================================================================
Starting Generator MLE Training...
[MLE-GEN] epoch 0 : pre_loss = 7.8660, NLL_oracle = 9.9152, NLL_gen = 7.7255, NLL_div = 7.7996
[MLE-GEN] epoch 10 : pre_loss = 7.1071, NLL_oracle = 9.2863, NLL_gen = 7.0592, NLL_div = 7.1416
[MLE-GEN] epoch 20 : pre_loss = 6.7752, NLL_oracle = 9.1259, NLL_gen = 6.7668, NLL_div = 6.7878
[MLE-GEN] epoch 30 : pre_loss = 6.5874, NLL_oracle = 9.0911, NLL_gen = 6.5832, NLL_div = 6.5767
[MLE-GEN] epoch 40 : pre_loss = 6.4855, NLL_oracle = 9.0727, NLL_gen = 6.473, NLL_div = 6.4514
[MLE-GEN] epoch 50 : pre_loss = 6.4151, NLL_oracle = 9.0601, NLL_gen = 6.3907, NLL_div = 6.3667
[MLE-GEN] epoch 60 : pre_loss = 6.3669, NLL_oracle = 9.0677, NLL_gen = 6.3345, NLL_div = 6.3069
[MLE-GEN] epoch 70 : pre_loss = 6.3282, NLL_oracle = 9.0544, NLL_gen = 6.2672, NLL_div = 6.2518
[MLE-GEN] epoch 80 : pre_loss = 6.2894, NLL_oracle = 9.0483, NLL_gen = 6.2203, NLL_div = 6.2093
[MLE-GEN] epoch 90 : pre_loss = 6.2711, NLL_oracle = 9.0562, NLL_gen = 6.1969, NLL_div = 6.1857
[MLE-GEN] epoch 100 : pre_loss = 6.2481, NLL_oracle = 9.0306, NLL_gen = 6.1654, NLL_div = 6.1537
[MLE-GEN] epoch 110 : pre_loss = 6.2363, NLL_oracle = 9.0364, NLL_gen = 6.1292, NLL_div = 6.1452
[MLE-GEN] epoch 120 : pre_loss = 6.2178, NLL_oracle = 9.0427, NLL_gen = 6.1125, NLL_div = 6.1228
[MLE-GEN] epoch 130 : pre_loss = 6.2085, NLL_oracle = 9.0212, NLL_gen = 6.1075, NLL_div = 6.108
[MLE-GEN] epoch 140 : pre_loss = 6.2119, NLL_oracle = 9.022, NLL_gen = 6.1081, NLL_div = 6.1021
[MLE-GEN] epoch 149 : pre_loss = 6.1958, NLL_oracle = 9.0302, NLL_gen = 6.085, NLL_div = 6.0905
Traceback (most recent call last):
File "main.py", line 131, in
inst._run()
File "/home/oneseven/text/instructor/oracle_data/seqgan_instructor.py", line 43, in _run
torch.save(self.gen.state_dict(), cfg.pretrained_gen_path)
File "/home/oneseven/Python-3.6.2/lib/python3.6/site-packages/torch/serialization.py", line 369, in save
with _open_file_like(f, 'wb') as opened_file:
File "/home/oneseven/Python-3.6.2/lib/python3.6/site-packages/torch/serialization.py", line 234, in _open_file_like
return _open_file(name_or_buffer, mode)
File "/home/oneseven/Python-3.6.2/lib/python3.6/site-packages/torch/serialization.py", line 215, in init
super(_open_file, self).init(open(name, mode))
PermissionError: [Errno 13] Permission denied: 'pretrain/oracle_data/gen_MLE_pretrain_seqgan_vanilla_sl20_sn10000.pt'