Caffe: Unknown bottom blob 'data'

[n3011]

I am training a vggnet 19 layers, But the problems is am getting the following errors and coulnt proceed
F1124 16:05:28.878301 25702 insert_splits.cpp:35] Unknown bottom blob 'data' (layer 'conv1_1', bottom index 0)
top part of prototxt file
`
VGG_19_layers_prelu_train_val.prototxt
name: "VGG_ILSVRC_19_layers"
layer {
name: "data"
type: "Data"
include {
phase: TRAIN
}
transform_param {
crop_size: 224
mean_value: 104
mean_value: 117
mean_value: 123
mirror: true
}
data_param {
source: "data/ilsvrc12/ilsvrc12_train_lmdb"
batch_size: 64
backend: LMDB
}
top: "data"
top: "label"
}
layer {
name: "data"
type: "Data"
include {
phase: TEST
}
transform_param {
crop_size: 224
mean_value: 104
mean_value: 117
mean_value: 123
mirror: false
}
data_param {
source: "data/ilsvrc12/ilsvrc12_val_lmdb"
batch_size: 50
backend: LMDB
}
top: "data"
top: "label"
}
layer {
bottom: "data"
top: "conv1_1"
name: "conv1_1"
type: "Convolution"
convolution_param {
num_output: 64
pad: 1
kernel_size: 3
}
}

`

[seanbell]

Wait, how does this even load? You have layers (i.e. the old V1 format) and then a string layer type (the new format). This should fail at the point where the prototxt is parsed, since your file doesn't match the schema. For example, it should have failed when trying to parse the type for your conv1_1 layer: https://github.com/BVLC/caffe/blob/master/src/caffe/proto/caffe.proto#L1106

You need to fix this to all be consistent. It's currently a mix-and-match between V1 and the current version. It's okay to have a file entirely in V1 format (since it will be auto-upgraded), but it doesn't work if you copy-paste layers, some V1, and others not.

You should change all of the layers { to layer {, and change the enum types (e.g. type: DATA) to strings (e.g. type: "Data").

I filed an issue (#3381) to track the underlying problem.

[n3011]

@seanbell I have changed my prototxt to current version, but still getting the same errors...

[n3011]

@seanbell hi, when I run both training and testing together it works doesnt give any error, but when I delete all relevant TEST phase it give errors, Any idea?

[n3011]

I was doing some silly mistakes, I have forgot to change my solver.prototxt file. All are good now.

[arasharchor]

@n3011 having the same problem and it is not a mixture of V1 format and current one. how did you solve this problem? what do you mean changing solver.prototxt what did you change?

[n3011]

@smajida sorry for late reply. I just removed test parameter (test_iter and test_interval) from solver file.

[ghost]

@smajida an explanation of why removing the test parameters solves the problem would help :smiley:

[Gokulakrishnan-96]

@smajida sorry for late reply. I just removed test parameter (test_iter and test_interval) from solver file.

I am getting the same error F0821 11:27:20.151577 17919 insert_splits.cpp:29] Unknown bottom blob 'data' (layer 'conv1_1', bottom index 0) and I don't have any parameters named (test_iter and test_interval) in any of my solver files. Please help me! @n3011