TypeError: Cannot read properties of undefined (reading 'JsonRpcProvider')

[endresol]

Hello.

I am getting this error when trying to deploy a contract with parameters and I can not understand why.
According to the dump, it is from this line:
at Object. (node_modules@nomiclabs\hardhat-ethers\src\internal\ethers-provider-wrapper.ts:4:61)

I expect it is something I do, but the error message makes it very hard to understand what...
Any tips on how to find out what is wrong?

[endresol]

OK, I have done some research and the error is related to ethers. When I downgrade to ^5.4.7 (from ^6.0.2) it works.

[endresol]

Hardhat 6.1.2 does not support ethers.js 6.0.2. Downgrade to 5.4.7 until support is upgraded.
Follow this issue for more info: #3639

[fvictorio]

Glad you figured out and thanks for self-answering for future readers 🙂 Adding support for the new version of Ethers is one of our top priorities right now.

[k06a]

Wish @nomiclabs/ethers-provider-wrapper to support ethers@6