I have this problem when i train my data by caffe .
F1107 12:42:42.507861 2369 net.cpp:774] Cannot copy param 0 weights from layer 'conv4_3_norm_mbox_conf'; shape mismatch. Source param shape is 40 512 3 5 (307200); target param shape is 180 512 3 5 (1382400). To learn this layer's parameters from scratch rather than copying from a saved net, rename the layer.
I have solved this problem by delete the file like "VGG_text_text_polygon_precise_fix_order_384x384_iter_120000.solverstate"
Delete all solverstate file and problem have solved .