Error: Could not find a declaration file for module 'ws'. '/daf/examples/expressjs-ethr/node_modules/ws/index.js' implicitly has an 'any' type.

[Muhammad-Altabba]

/daf/examples/expressjs-ethr$ yarn build
yarn run v1.21.1
$ tsc
src/framework.ts:18:16 - error TS7016: Could not find a declaration file for module 'ws'. '/daf/examples/expressjs-ethr/node_modules/ws/index.js' implicitly has an 'any' type.
  Try `npm install @types/ws` if it exists or add a new declaration (.d.ts) file containing `declare module 'ws';`

18 import ws from 'ws'
                  ~~~~

Found 1 error.

error Command failed with exit code 2.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

/daf/examples/expressjs-ethr$ yarn add @types/ws
yarn add v1.21.1
[1/4] Resolving packages...
[2/4] Fetching packages...
[3/4] Linking dependencies...
[4/4] Building fresh packages...
success Saved lockfile.
success Saved 1 new dependency.
info Direct dependencies
└─ @types/ws@7.2.2
info All dependencies
└─ @types/ws@7.2.2
Done in 5.83s.

/daf/examples/expressjs-ethr$ yarn build
yarn run v1.21.1
$ tsc
Done in 6.67s.

[simonas-notcat]

Thanks for raising this issue. I've fixed it master