Error: Unsupported language version '0.8.27'

[pcaversaccio]

For repro use my repo here: https://github.com/pcaversaccio/hardhat-project-template-ts

I updated the Solidity version to 0.8.27 via pcaversaccio/hardhat-project-template-ts@f44a035.

The hardhat tests currently fail due to your package not supporting the Solidity version 0.8.27: npx hardhat test:

An unexpected error occurred:
Error: Unsupported language version '0.8.27'.
    at tryRemoveNonStructNatSpec (/home/runner/work/hardhat-project-template-ts/hardhat-project-template-ts/node_modules/.pnpm/@[email protected]/node_modules/@openzeppelin/upgrades-core/src/utils/make-namespaced.ts:[18](https://github.com/blokk-studio/hardhat-project-template-ts/actions/runs/10752994779/job/29821936631#step:10:19)3:22)
    at makeNamespacedInput (/home/runner/work/hardhat-project-template-ts/hardhat-project-template-ts/node_modules/.pnpm/@[email protected]/node_modules/@openzeppelin/upgrades-core/src/utils/make-namespaced.ts:158:28)
    at OverriddenTaskDefinition._action (/home/runner/work/hardhat-project-template-ts/hardhat-project-template-ts/node_modules/.pnpm/@[email protected]_@[email protected][email protected]_buff_b6fk7igjaxyvtwxdu22yysbakm/node_modules/@openzeppelin/hardhat-upgrades/src/index.ts:102:31)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async Environment._runTaskDefinition (/home/runner/work/hardhat-project-template-ts/hardhat-project-template-ts/node_modules/.pnpm/[email protected][email protected][email protected]_@[email protected][email protected]__typescri_7iajnuxsvogcbxkb6ol3j2urla/node_modules/hardhat/src/internal/core/runtime-environment.ts:351:14)
    at async Environment.run (/home/runner/work/hardhat-project-template-ts/hardhat-project-template-ts/node_modules/.pnpm/hardhat@2.[22](https://github.com/blokk-studio/hardhat-project-template-ts/actions/runs/10752994779/job/29821936631#step:10:23)[email protected][email protected]_@[email protected][email protected]__typescri_7iajnuxsvogcbxkb6ol3j2urla/node_modules/hardhat/src/internal/core/runtime-environment.ts:184:14)
    at async SimpleTaskDefinition.action (/home/runner/work/hardhat-project-template-ts/hardhat-project-template-ts/node_modules/.pnpm/[email protected][email protected][email protected]_@[email protected][email protected]__typescri_7iajnuxsvogcbxkb6ol3j2urla/node_modules/hardhat/src/builtin-tasks/compile.ts:1024:37)
    at async Environment._runTaskDefinition (/home/runner/work/hardhat-project-template-ts/hardhat-project-template-ts/node_modules/.pnpm/[email protected][email protected][email protected]_@[email protected][email protected]__typescri_7iajnuxsvogcbxkb6ol3j2urla/node_modules/hardhat/src/internal/core/runtime-environment.ts:351:14)
    at async Environment.run (/home/runner/work/hardhat-project-template-ts/hardhat-project-template-ts/node_modules/.pnpm/[email protected][email protected][email protected]_@[email protected][email protected]__typescri_7iajnuxsvogcbxkb6ol3j2urla/node_modules/hardhat/src/internal/core/runtime-environment.ts:184:14)
    at async /home/runner/work/hardhat-project-template-ts/hardhat-project-template-ts/node_modules/.pnpm/[email protected][email protected][email protected]_@[email protected][email protected]__typescri_7iajnuxsvogcbxkb6ol3j2urla/node_modules/hardhat/src/builtin-tasks/compile.ts:464:28 {
  code: 'GenericFailure'
}
 ELIFECYCLE  Command failed with exit code 1.
Error: Process completed with exit code 1.

I don't use your package at all, but it's required by the @tenderly/hardhat-tenderly package unfortunately. I haven't debugged what is triggering exactly this issue, but would appreciate a patch :)

[ericglau]

Thanks for reporting. This occurs because the Slang dependency introduced in #1051 (in release @openzeppelin/[email protected]) doesn't yet support 0.8.27. We will fix this to avoid this code path for versions that Slang does not recognize.

[ericglau]

This is fixed in @openzeppelin/[email protected]