Mac run error

[lxyeternal]

Epoch: 0, att_val: [0.5074427 0.49255723]
Training: loss = 1.14501, acc = 0.30667 | Val: loss = 1.12552, acc = 0.64000
2020-08-27 18:43:10.930408: W tensorflow/core/framework/op_kernel.cc:1502] OP_REQUIRES failed at save_restore_v2_ops.cc:109 : Not found: pre_trained/acm; No such file or directory