无法加载依赖项清单文件。

Question

无法加载依赖项清单文件。

rustrust-cargosubstrateparity

3

我正在尝试将一些原语引入到Substrate中的调色板中，但是当我执行货物检查时，出现以下错误：无法加载依赖关系“原语名称”的清单。

Dex调色板：https://github.com/Kabocha-Network/cumulus/tree/v0.9.13-elio/pallets/dex 请有人看一下并让我知道。谢谢您提前。

- P.E

2个回答

0

我解决这个错误的方法是在我的货物文件中将正确的分支值从.17更改为.18。对于sp-io依赖项，我设置了branch = "polkadot-v0.9.17"，这与其他所有依赖项所在的polkadot-v0.9.18版本不匹配。

原始文本中存在sp-io问题（最后一行）

[dependencies]
codec = { package = "parity-scale-codec", version = "3.0.0", default-features = false, features = [
    "derive",
] }
scale-info = { version = "2.0.1", default-features = false, features = ["derive"] }
frame-support = { default-features = false, version = "4.0.0-dev", git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.18"}
frame-system = { default-features = false, version = "4.0.0-dev", git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.18" }
frame-benchmarking = { default-features = false, version = "4.0.0-dev", git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.18", optional = true }
sp-io = { default-features = false, git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.17" }

修复（sp-io）

sp-io = { default-features = false, git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.18" }

现在"branch"与其他所有内容匹配，我的错误已经消失了！我回到Substrate Kitties教程中继续学习！

- jakerumbles

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- Decentration · Accepted Answer

如果你运行cargo check，你会得到以下结果：

error: failed to load manifest for workspace member `/root/cumulus/pallets/dex`

Caused by:
  failed to load manifest for dependency `acala-primitives`

Caused by:
  failed to load manifest for dependency `module-evm-utiltity`

Caused by:
  failed to read `/root/cumulus/primitives/modules/evm-utiltity/Cargo.toml`

Caused by:
  No such file or directory (os error 2)

问题在于/root/cumulus/primitives/modules/evm-utiltity/Cargo.toml未找到，因为您未将此pallet包含在本地或该pallet被放错位置并位于其他地方。

简单的解决方案：

1. 定位和更正

找到pallet所在位置，并正确链接到它，或将pallet导入到位置root/cumulus/primitives/modules/evm-utiltity/Cargo.toml，以便可以找到它。

2. 外部链接而不是本地导入pallets

您可以从其外部来源链接到pallet，而不是在本地导入它，否则您将发现需要采取更多的依赖关系并将它们存储在本地，就像上面提到的错误中的/root/cumulus/primitives/modules/evm-utiltity/Cargo.toml一样。

您可以这样做：

直接转到运行时目录，即/root/cumulus/parachain-template/runtime/Cargo.toml，并直接从github.com/acala-network/acala链接到外部dex，类似于以下内容：

[dependencies.pallet-dexl]
default-features = false
git = 'https://github.com/Acala-Network/acala.git'
branch = polkadot-v0.9.13
version = '3.0.0'

实际上它仍然使用旧的依赖版本，就像这样：

pallet-dex = { git = "https://github.com/Acala-Network/acala", default-features = false, branch = "polkadot-v0.9.13" }

对于这个错误，需要更加具体的设置：

module-evm-utlity = { git = "https://github.com/Acala-Network/acala", default-features = false, branch = "polkadot-v0.9.13" }

但是如果您从外部源链接到pallet-dex，错误应该会消失，并且您可能不需要链接 acala-primitives 或者 module-evm-utility。

https://docs.substrate.io/how-to-guides/v3/basics/pallet-integration/

此外，evm-utiltity 拼写不正确（应该是 utility）。