[zksolc]<Error in plugin @matterlabs/hardhat-zksync-solc: Could not download zksolc compiler version info file>

[Madhav-Gupta-28]

Which compiler are you using?

• zksolc
• zkvyper

Which version of Solidity or Vyper?

0.8.8

zksolc/zkvyper version?

^0.4.1

Explain the issue

I have Forked This Repo : https://github.com/billyjitsu/zk-paymaster-dapi-vip

And Then Try to Run in my Local Computer. 
I have install Dependencies by "yarn install" , but when compiling contracts by "yarn compile". 
I am getting this error :

yarn compile
yarn run v1.22.19
$ hardhat compile
Error in plugin @matterlabs/hardhat-zksync-solc: Could not download zksolc compiler version info file. Please check your internet connection and try again.

For more info run Hardhat with --show-stack-traces
error Command failed with exit code 1.

Link to your repo?

https://github.com/billyjitsu/zk-paymaster-dapi-vip/

[dutterbutter]

Hmm might be the version, can you please update to latest. Can you try uninstalling:

yarn uninstall @matterlabs/hardhat-zksync-solc

Installing:

yarn install @matterlabs/hardhat-zksync-solc

[Madhav-Gupta-28]

I have done that. But The Error Persists

[dutterbutter]

hmm.... I just cloned and installed the dependencies fine on the provided repo? What os are you using?

[Madhav-Gupta-28]

Windows 10 ser

[MexicanAce]

Hi @Madhav-Gupta-28 👋

Starting from the repo you linked, I was able to successfully run yarn compile on my Windows 10 machine. Could you please delete your node_modules directory and try yarn install again?

Here's my output for yarn compile:

PS C:\git\zk-paymaster-dapi-vip> yarn compile
yarn run v1.22.19
$ hardhat compile
√ Help us improve Hardhat with anonymous crash reports & basic usage data? (Y/n) · n
Downloading zksolc 1.3.14
zksolc version 1.3.14 successfully downloaded
Compiling contracts for zkSync Era with zksolc v1.3.14 and solc v0.8.8
Downloading solc 0.8.8
Compiling 43 Solidity files
Warning: This declaration shadows an existing declaration.
  --> @matterlabs/zksync-contracts/l2/system-contracts/libraries/Utils.sol:85:9:
   |
85 |         uint256 bytecodeLenInWords = _bytecode.length / 32;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Note: The shadowed declaration is here:
  --> @matterlabs/zksync-contracts/l2/system-contracts/libraries/Utils.sol:43:5:
   |
43 |     function bytecodeLenInWords(bytes32 _bytecodeHash) internal pure returns (uint256 codeLengthInWords) {
   |     ^ (Relevant source part starts here and spans across multiple lines).


Warning: Unused function parameter. Remove or comment out the variable name to silence this warning.
  --> contracts/MyPaymaster.sol:59:32:
   |
59 |         returns (bytes4 magic, bytes memory context)
   |                                ^^^^^^^^^^^^^^^^^^^^


Warning: Unused local variable.
  --> contracts/MyPaymaster.sol:74:45:
   |
74 |             (address token, uint256 amount, bytes memory data) = abi.decode(
   |                                             ^^^^^^^^^^^^^^^^^


Successfully compiled 43 Solidity files
Done in 29.04s.

[GainLee]

I got this on my MacOS too.
I meet it on https://era.zksync.io/docs/dev/tutorials/gated-nft-paymaster-tutorial.html#implementing-validateandpayforpaymastertransaction-function
Need some help pls

[idea404]

@Madhav-Gupta-28 can you confirm you are still receiving this error?

The plugin was throwing this error for all of its invocations previously because it was fetching this info file from a GitHub repository which had rate limits in place, the most recent release of this plugin (1.0.2) addresses this issue.