thread 'main' panicked at 'index not found'

[intfish123]

I run diesel_ext -m > src/models.rs, and print errror:

thread 'main' panicked at 'index not found', /Users/intfish/.cargo/registry/src/index.crates.io-6f17d22bba15001f/diesel_cli_ext-0.3.10/src/main.rs:187:33

[abbychau]

is this still relevant?