Error: Rococo development wasm not available

[brunopgalvao]

When I run:

zombienet --provider native spawn ./zombienet.toml 

according to the README in this repo, I get the following:

╔════════════════════╤════════════════════════════════════════════════════════════════════════════════════════════════════╗
║ 🧟 Zombienet 🧟    │ Initiation                                                                                         ║
╟────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ Provider           │ native                                                                                             ║
╟────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ Namespace          │ zombie-96f8a2c63c3f7edf93981a6408bb1248                                                            ║
╟────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ Temp Dir           │ /var/folders/vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-96f8a2c63c3f7edf93981a6408bb1248_-3657-xR… ║
╚════════════════════╧════════════════════════════════════════════════════════════════════════════════════════════════════╝
┌─────────────────────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ Pod                     │ temp                                                                                               │
├─────────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Status                  │ Launching                                                                                          │
├─────────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Command                 │ bash -c polkadot build-spec --chain rococo-local --disable-default-bootnode > /var/fo              │
│                         │ lders/vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-96f8a2c63c3f7edf93981a6408bb1248_-3657-xR         │
│                         │ EJet39Ivr3/cfg/rococo-local-plain.json                                                             │
└─────────────────────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
Error:  	 Error: Command failed with exit code 1: bash -c polkadot build-spec --chain rococo-local --disable-default-bootnode > /var/folders/vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-96f8a2c63c3f7edf93981a6408bb1248_-3657-xREJet39Ivr3/cfg/rococo-local-plain.json
Error: 
   0: Invalid input: Rococo development wasm not available

Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
Run with RUST_BACKTRACE=full to include source snippets.

[kianenigma]

Hey, thanks for reporting this!

Since fixes to templates should happen in the polkadot-sdk, I will transfer this issue there + assign it to the right person/project.

So far, it seems like your polkadot binary is not compiled such to have the native --chain rococo-local binary in it.

Where have you donwloaded/build it from?

[kianenigma]

It does seem like that in the released polkadot binary, the development chain-specs such as rococo are not available:

[Parity] ./polkadot-aarch64-apple-darwin build-spec --chain rococo-local
Error:
   0: Invalid input: Rococo development wasm not available

Backtrace omitted. Run with RUST_BACKTRACE=1 environment variable to display it.
Run with RUST_BACKTRACE=full to include source snippets.

[brunopgalvao]

Hey, thanks for reporting this!

Since fixes to templates should happen in the polkadot-sdk, I will transfer this issue there + assign it to the right person/project.

So far, it seems like your polkadot binary is not compiled such to have the native --chain rococo-local binary in it.

Where have you donwloaded/build it from?

Yes I was following the README in this repo and used the polkadot-aarch64-apple-darwin binary from the release.

[kianenigma]

I see that the omni-node package is not enabling these features, which seems to be a mistake.

Bit surprised about Polkadot -- quite likely we do the release builds with --default-features and manually re-enable the important ones.

I can understand that we want the release binary to be lean, but at the same time it is a blow to the DX to not be able to use the released polkadot binaries for testing with ZN. I think we should one defacto testing relay chain spec in the binary, be it rococo or paseo.

@brunopgalvao in the meantime though, you can edit the zombienet config to point to a rococo chain-spec json file path instead of the hardcoded one. cc @pepoviola

[brunopgalvao]

I edited the zombienet.toml file like so:

[relaychain]
default_command = "../polkadot-sdk/target/release/polkadot"
chain = "rococo-local"
chain_spec_path = "./rococo-local-plain.json"

[[relaychain.nodes]]
name = "alice"
validator = true
ws_port = 9944

[[relaychain.nodes]]
name = "bob"
validator = true
ws_port = 9955

[[parachains]]
id = 1000

[parachains.collator]
name = "charlie"
ws_port = 9988
command = "parachain-template-node"

I now get the following error:

zombienet --provider native spawn ./zombienet.toml                                                                                           
╔════════════════════╤════════════════════════════════════════════════════════════════════════════════════════════════════╗
║ 🧟 Zombienet 🧟    │ Initiation                                                                                         ║
╟────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ Provider           │ native                                                                                             ║
╟────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ Namespace          │ zombie-939a79542ac3732612b96ad9c4b6bbd2                                                            ║
╟────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ Temp Dir           │ /var/folders/vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-939a79542ac3732612b96ad9c4b6bbd2_-26599-0… ║
╚════════════════════╧════════════════════════════════════════════════════════════════════════════════════════════════════╝
┌─────────────────────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ Pod                     │ temp                                                                                               │
├─────────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Status                  │ Launching                                                                                          │
├─────────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Command                 │ bash -c parachain-template-node build-spec  --disable-default-bootnode > /var/folders              │
│                         │ /vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-939a79542ac3732612b96ad9c4b6bbd2_-26599-0eVIKO         │
│                         │ T9dBff/cfg/undefined-plain.json                                                                    │
└─────────────────────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
Error:           Error: Command failed with exit code 127: bash -c parachain-template-node build-spec  --disable-default-bootnode > /var/folders/vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-939a79542ac3732612b96ad9c4b6bbd2_-26599-0eVIKOT9dBff/cfg/undefined-plain.json
bash: parachain-template-node: command not found

Do I need to manually generate and specify the parachain chain spec as well?

Also, just to note, when I compile the polkadot-sdk repo (cargo build --release) and do not manually specify the chain spec, I get the following output:

zombienet --provider native spawn ./zombienet.toml 
╔════════════════════╤════════════════════════════════════════════════════════════════════════════════════════════════════╗
║ 🧟 Zombienet 🧟    │ Initiation                                                                                         ║
╟────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ Provider           │ native                                                                                             ║
╟────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ Namespace          │ zombie-2497f8ead679cac01db11fa648e66fca                                                            ║
╟────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────╢
║ Temp Dir           │ /var/folders/vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-2497f8ead679cac01db11fa648e66fca_-25690-2… ║
╚════════════════════╧════════════════════════════════════════════════════════════════════════════════════════════════════╝
┌─────────────────────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ Pod                     │ temp                                                                                               │
├─────────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Status                  │ Launching                                                                                          │
├─────────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Command                 │ bash -c ../polkadot-sdk/target/release/polkadot build-spec --chain rococo-local --dis              │
│                         │ able-default-bootnode > /var/folders/vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-2497f8ead6         │
│                         │ 79cac01db11fa648e66fca_-25690-21B62f1pwdhn/cfg/rococo-local-plain.json                             │
└─────────────────────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
┌────────────────────────────────────────┬────────────────────────────────────────────────────────────────────────────────┐
│ Pod                                    │ temp                                                                           │
├────────────────────────────────────────┼────────────────────────────────────────────────────────────────────────────────┤
│ Status                                 │ Ready                                                                          │
└────────────────────────────────────────┴────────────────────────────────────────────────────────────────────────────────┘
┌─────────────────────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ Pod                     │ temp-1                                                                                             │
├─────────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Status                  │ Launching                                                                                          │
├─────────────────────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Command                 │ bash -c parachain-template-node build-spec  --disable-default-bootnode > /var/folders              │
│                         │ /vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-2497f8ead679cac01db11fa648e66fca_-25690-21B62f         │
│                         │ 1pwdhn/cfg/undefined-plain.json                                                                    │
└─────────────────────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
Error:           Error: Command failed with exit code 127: bash -c parachain-template-node build-spec  --disable-default-bootnode > /var/folders/vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-2497f8ead679cac01db11fa648e66fca_-25690-21B62f1pwdhn/cfg/undefined-plain.json
bash: parachain-template-node: command not found

Notice how in the temp pod I actually get the rococo-local-plain.json chain spec but then in temp-1 I get undefined.

[iulianbarbu]

hey @brunopgalvao ! Not sure if your problem still persists, but the errors in the previous comment are most likely PATH related:

Error:           Error: Command failed with exit code 127: bash -c parachain-template-node build-spec  --disable-default-bootnode > /var/folders/vl/txnq6gdj22s9rn296z0md27w0000gn/T/zombie-2497f8ead679cac01db11fa648e66fca_-25690-21B62f1pwdhn/cfg/undefined-plain.json
bash: parachain-template-node: command not found

Can you ensure parachain-template-node binary is on the PATH? (if you use the aarch64-darwin binary a rename might be needed).

Also, parachain-template dedicated repo (https://github.com/paritytech/polkadot-sdk-parachain-template) is mirroring stable2409. We'll update it to reflect stable2412 soon. We track this here for now: #6329. Not sure if it will change anything around your issue, but just in case, you can consider this README too for parachain-template, if you're experimenting with stable2412 binaries.

I will investigate the initial reported issue in the meantime as well.

[iulianbarbu]

I will investigate the initial reported issue in the meantime as well.

Seems like aarch64 binaries are built with SKIP_WASM_BUILD=1, which is something I introduced (probably to speed up testing) and slipped through. Opened #7074 to unset the variable and we should follow up soon with releasing fixed binaries. Sorry for the trouble 🙏

[iulianbarbu]

I see that the omni-node package is not enabling these features, which seems to be a mistake.

Do you suggest adding more features for the polkadot-cli dependency of polkadot-omni-node-lib, like rococo-native and westend-native, besides default-features? These are the only ones missing when compared to polkadot binary. ZN sets the relaychain --chain accordingly for parachain nodes. It might come in handy for manual usage in non-ZN setups, but I would do it after we see it asked, based on developers usage.

Bit surprised about Polkadot -- quite likely we do the release builds with --default-features and manually re-enable the important ones.

I can understand that we want the release binary to be lean, but at the same time it is a blow to the DX to not be able to use the released polkadot binaries for testing with ZN. I think we should one defacto testing relay chain spec in the binary, be it rococo or paseo.

The WASM binaries are present in the Linux polkadot binary (at least for rococo-local, which I tried). The missing wasm binaries happen for aarch64 only, given the SKIP_WASM_BUILD=1 which I am trying to remove now 🙈.

[brunopgalvao]

Thanks @iulianbarbu :)