What does "Attempt to update the input file specified using obsolete conversion options" mean?

Question

I am currently trying to train my first network using Caffe. I get the following output:

caffe train --solver=first_net_solver.prototxt I0515 09:01:06.577710 15331 caffe.cpp:117] Use CPU. I0515 09:01:06.578014 15331 caffe.cpp:121] Starting Optimization I0515 09:01:06.578097 15331 solver.cpp:32] Initializing solver from parameters: test_iter: 1 test_interval: 1 base_lr: 0.01 display: 1 max_iter: 2 lr_policy: "inv" gamma: 0.0001 power: 0.75 momentum: 0.9 weight_decay: 0 snapshot: 1 snapshot_prefix: "first_net" solver_mode: CPU net: "first_net.prototxt" I0515 09:01:06.578203 15331 solver.cpp:70] Creating training net from net file: first_net.prototxt E0515 09:01:06.578348 15331 upgrade_proto.cpp:609] Attempting to upgrade input file specified using deprecated transformation parameters: first_net.prototxt I0515 09:01:06.578533 15331 upgrade_proto.cpp:612] Successfully upgraded file specified using deprecated data transformation parameters. E0515 09:01:06.578549 15331 upgrade_proto.cpp:614] Note that future Caffe releases will only support transform_param messages for transformation fields. E0515 09:01:06.578574 15331 upgrade_proto.cpp:618] Attempting to upgrade input file specified using deprecated V1LayerParameter: first_net.prototxt I0515 09:01:06.578635 15331 upgrade_proto.cpp:626] Successfully upgraded file specified using deprecated V1LayerParameter I0515 09:01:06.578729 15331 net.cpp:42] Initializing net from parameters: name: "first_net" input: "data" input_dim: 1 input_dim: 5 input_dim: 41 input_dim: 41 state { phase: TRAIN } layer { name: "data" type: "ImageData" top: "data2" top: "data-idx" transform_param { mirror: false crop_size: 41 } image_data_param { source: "/home/moose/GitHub/first-net/data-images.txt" } } layer { name: "label-mask" type: "ImageData" top: "label-mask" top: "label-idx" transform_param { mirror: false crop_size: 41 } image_data_param { source: "/home/moose/GitHub/first-net/labels-images.txt" } } layer { name: "assert-idx" type: "EuclideanLoss" bottom: "data-idx" top: "loss" } 

What is he doing

Attempting to upgrade input file specified using deprecated transform parameters / V1LayerParameter

mean? Where exactly did I use something obsolete? What should i use instead?

Answer 1

Recently, the input transformation (scaling / cropping, etc.) has been separated from the IMAGE_DATA layer by a separate object: a data converter. This change affected the syntax of protobuffer and the syntax of the IMAGE_DATA layer.

It looks like your first_net.prototxt is in the old format, and Caffe will convert it for you in the new format.

You can do this conversion manually yourself using ./build/tools/upgrade_net_proto_text (for prototype files) and ./build/tools/upgrade_net_proto_binary (for binaryproto files).