Error Compling Contract

Question

I am just starting with wasm and ink.

I have installed the following dependency:

npm install -g @astar-network/swanky-cli

I am trying to compile the contract flipper and I get the following warnings and error:

swanky contract compile flipper
@polkadot/util-crypto has multiple versions, ensure that there is only one installed.
Either remove and explicitly install matching versions or dedupe using your package manager.
The following conflicting packages were found:
        cjs 10.2.1      node_modules\@astar-network\swanky-cli\node_modules\@astar-network\swanky-core\node_modules\@polkadot\util-crypto\cjs
        cjs 10.2.1      node_modules\@astar-network\swanky-cli\node_modules\@polkadot\keyring\node_modules\@polkadot\util-crypto\cjs
@polkadot/util has multiple versions, ensure that there is only one installed.
Either remove and explicitly install matching versions or dedupe using your package manager.
The following conflicting packages were found:
        cjs 10.2.1      node_modules\@astar-network\swanky-cli\node_modules\@polkadot\util\cjs
        cjs 10.2.6      node_modules\@astar-network\swanky-cli\node_modules\@polkadot\util-crypto\node_modules\@polkadot\util\cjs
@polkadot/util-crypto has multiple versions, ensure that there is only one installed.
Either remove and explicitly install matching versions or dedupe using your package manager.
The following conflicting packages were found:
        cjs 10.2.1      node_modules\@astar-network\swanky-cli\node_modules\@astar-network\swanky-core\node_modules\@polkadot\util-crypto\cjs
        cjs 10.2.1      node_modules\@astar-network\swanky-cli\node_modules\@polkadot\keyring\node_modules\@polkadot\util-crypto\cjs
        cjs 10.2.6      node_modules\@astar-network\swanky-cli\node_modules\@polkadot\util-crypto\cjs
✖ Error Compiling contract

How do I fix the warnings and the error?

Answer 1

This is a warning by polkadotjs library, and shouldn't affect the compilation.

To get rid of the warning, I suggest installing Swanky the recommended way, by downloading the prebuilt release from Github. If the warning persist, you can run it in an isolated environment, like nix shell or a dev container. (We'll soon have an official one too)

To find out what is really breaking your compilation, run the swanky contract compile command with -v flag.

Answer 2

Thanks for the reply. I use a windows environment. I do run the command:

swanky contract compile test -v

(test is the contract folder name). But I only get the error: ✖ Error Compiling contract and not more.

There are two ways I try to compile a contract:

swanky init test (create flipper template)

swanky contract compile flipper -v

and

cargo contract new test

swanky contract compile test -v

for both I get the same error.