Could not find a declaration file for module 'ws'

[benesjan]

I am trying to use viem in combination with node v18.15.0, newest viem (0.1.14) and ESM and I am getting the following error:

../.yarn/virtual/isomorphic-ws-virtual-4abf445193/0/cache/isomorphic-ws-npm-5.0.0-9c72251c2d-e20eb2aee0.zip/node_modules/isomorphic-ws/index.d.ts(6,28): error TS7016: Could not find a declaration file for module 'ws'. '/Users/jan/Coding/aztec3-packages/yarn-project/.yarn/virtual/ws-virtual-26db9323a7/0/cache/ws-npm-8.13.0-26ffa3016a-53e991bbf9.zip/node_modules/ws/index.js' implicitly has an 'any' type.
Try npm i --save-dev @types/ws if it exists or add a new declaration (.d.ts) file containing declare module 'ws';

I tried installing the types with yarn add -D @types/ws but it didn't help.

Any ideas what is wrong?

[jxom]

Any chance you could upload a minimal reproduction via a repo?

[benesjan]

Hello, I have not yet managed to reproduce it in a separate minimal repo. I think the issue has to do something with yarn PNP. We use that in our main repository at Aztec. I will report back if I manage to identify it and I will close the discussion if it will simply turn out to be some misconfiguration on our side (which is most likely the case).

[benesjan]

After switching away from yarn PNP the issue resolved itself.