Trouble with setting up Netstack3 development environment

[Yosuke Matsuda]

Dear team,

I'm interested in contributing to Netstack3 but I got stuck in setting up the development environment.

I executed `fx build //src/connectivity/network/netstack3/core:netstack3-core` with reference to this doc but following error occurred.

```

$ fx set core.x64 --with //src/connectivity/network/netstack3:bin

Generating compile_commands took 209ms

Generating rust-project.json took 106ms

Done. Made 111419 targets from 4825 files in 8584ms

$ fx build //src/connectivity/network/netstack3/core:netstack3-core

ninja: Entering directory `/home/ymatsuda/development/src/fuchsia/out/default'

ninja: error: unknown target '/src/connectivity/network/netstack3/core:netstack3-core', did you mean 'src/connectivity/network/netstack3/core:netstack3-core'?

Hint: run `fx build` with the option `--log LOGFILE` to generate a debug log if you are reporting a bug.

```

I used `src/connectivity/network/netstack3/core:netstack3-core` instead of `//src/connectivity/network/netstack3/core:netstack3-core` as suggested, it seemed to work.

But then, `fx gen-cargo` failed.

```

$ fx build src/connectivity/network/netstack3/core:netstack3-core

Generating compile_commands took 216ms

Generating rust-project.json took 109ms

Done. Made 111419 targets from 4825 files in 9376ms

ninja: Entering directory `/home/ymatsuda/development/src/fuchsia/out/default'

[1931/1931] RUST obj/src/connectivity/network/netstack3/core/libnetstack3_core.rlib

$ fx gen-cargo //src/connectivity/network/netstack3/core:netstack3-core

Could not find a Cargo.toml file at '/home/ymatsuda/development/src/fuchsia/out/default/cargo/60942068d119e3a01dbd549664aa79da89032fc0/Cargo.toml'

Is '//src/connectivity/network/netstack3/core:netstack3-core' an existing Rust target?

If so, make sure it is included in your build configuration and that you have run 'fx build'.

$ fx gen-cargo src/connectivity/network/netstack3/core:netstack3-core

Could not find a Cargo.toml file at '/home/ymatsuda/development/src/fuchsia/out/default/cargo/60942068d119e3a01dbd549664aa79da89032fc0/Cargo.toml'

Is '//src/connectivity/network/netstack3/core:netstack3-core' an existing Rust target?

If so, make sure it is included in your build configuration and that you have run 'fx build'.

```

out/default/cargo directory seemed to be missing.

```

$ ls -la /home/ymatsuda/development/src/fuchsia/out/default/ | grep cargo

$

```

My environment:

```

$ cat /etc/os-release

NAME="Ubuntu"

VERSION="20.04.2 LTS (Focal Fossa)"

ID=ubuntu

ID_LIKE=debian

PRETTY_NAME="Ubuntu 20.04.2 LTS"

VERSION_ID="20.04"

HOME_URL="https://www.ubuntu.com/"

SUPPORT_URL="https://help.ubuntu.com/"

BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"

PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"

VERSION_CODENAME=focal

UBUNTU_CODENAME=focal

$ printenv | grep FUCHSIA

FUCHSIA_DIR=/home/ymatsuda/development/src/fuchsia

```

Is there something wrong with the settings?

Sorry to ask something so elementary.

Thank you for your help.

ymatsuda

[Bruno Dal Bo]

Hello,

Thank you for reaching out! I've filed fxbug.dev/71180 to track updating the docs there.

I believe what you're missing is `--cargo-toml-gen` in your `fx set` line. That should hopefully get you across the `fx gen-cargo` part.

Cheers,

Bruno

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Bruno

[Y Matsuda]

Thank you for your reply.

The fixed instructions work fine!

I appreciate your support,

ymatsuda

2021年3月2日火曜日 1:44:23 UTC+9 Bruno Dal Bo: