Can't resume training (The passed save_path is not a valid checkpoint: ./experiment_SRResnet/))

[satsukiyatoshi]

Hello.
Thanks for this great piece of software.
I have an issue.
I'm begining the training with:
"python main.py --output_dir ./experiment_SRResnet/ --summary_dir ./experiment_SRResnet/log/ --mode train --is_training True --task SRResnet --batch_size 8 --flip True --random_crop True --crop_size 24 --input_dir_LR ./data/test_LR/ --input_dir_HR ./data/test_HR/ --num_resblock 16 --name_queue_capacity 6144 --image_queue_capacity 6144 --perceptual_mode MSE --queue_thread 16 --ratio 0.001 --learning_rate 0.0001 --decay_step 400000 --decay_rate 0.1 --stair False --beta 0.9 --max_iter 1000000 --save_freq 5000"

training's working great, the tensorboard update's well.

but when i want to resume with:
"python main.py --output_dir ./experiment_SRResnet/ --summary_dir ./experiment_SRResnet/log/ --mode train --is_training True --task SRResnet --batch_size 8 --flip True --random_crop True --crop_size 24 --input_dir_LR ./data/test_LR/ --input_dir_HR ./data/test_HR/ --num_resblock 16 --name_queue_capacity 6144 --image_queue_capacity 6144 --perceptual_mode MSE --queue_thread 16 --ratio 0.001 --learning_rate 0.0001 --decay_step 400000 --decay_rate 0.1 --stair False --beta 0.9 --max_iter 1000000 --save_freq 5000 --pre_trained_model false --checkpoint ./experiment_SRResnet/"
i get the following error "ValueError: The passed save_path is not a valid checkpoint: ./experiment_SRResnet/"

Am i doing something wrong ?

Thanks