Error running

[i0x71]

Hi,
Great write up!
I am getting an error right after checkout and go build running go version go1.14.2 linux/amd66
Any idea how i can fix this ?

Thanks

./gonn -file nums/1.png

panic: mat: zero length in matrix dimension

goroutine 1 [running]:
gonum.org/v1/gonum/mat.NewDense(...)
/root/goEnv/src/gonum.org/v1/gonum/mat/dense.go:50
main.dot(0x571fc0, 0xc000072040, 0x571fc0, 0xc000072200, 0x1c, 0x1c)
/root/goEnv/neural_network/gonn/mlp.go:95 +0x21a
main.Network.Predict(0x310, 0xc8, 0xa, 0xc000072040, 0xc000072080, 0x3fb999999999999a, 0xc0002be000, 0x310, 0x310, 0xc000040510, ...)
/root/goEnv/neural_network/gonn/mlp.go:67 +0xd8
main.predictFromImage(0x310, 0xc8, 0xa, 0xc000072040, 0xc000072080, 0x3fb999999999999a, 0x7fff4e778edc, 0xa, 0xc000072080)
/root/goEnv/neural_network/gonn/mlp.go:211 +0x96
main.main()
/root/goEnv/neural_network/gonn/main.go:49 +0x236

Also running ./gonn -mnist train produces an error also
panic: runtime error: index out of range [1] with length 1

goroutine 1 [running]:
main.mnistTrain(0xc000062f48)
/root/goEnv/neural_network/gonn/main.go:69 +0x7e3
main.main()
/root/goEnv/neural_network/gonn/main.go:33 +0x2cd