Error [ERR_REQUIRE_ESM]: require() of ES Module

[dinesh-it]

node version: v18.12.1
wdio version: 8.0.15

I recently upgraded the node and libraries on our CI and getting the following error (when using teamcity reporter):

[0-0] 2022-12-29T10:06:50.764Z ERROR @wdio/local-runner: Failed launching test session: Error: Couldn't initialise "wdio-teamcity-reporter".
[0-0] Error [ERR_REQUIRE_ESM]: require() of ES Module /usr/lib/node_modules/@wdio/reporter/build/index.js from /usr/lib/node_modules/wdio-teamcity-reporter/index.js not supported.
[0-0] Instead change the require of /usr/lib/node_modules/@wdio/reporter/build/index.js in /usr/lib/node_modules/wdio-teamcity-reporter/index.js to a dynamic import() which is available in all CommonJS modules.
[0-0]     at Object.<anonymous> (/usr/lib/node_modules/wdio-teamcity-reporter/index.js:1:22)
[0-0]     at async Promise.all (index 0)
[0-0]     at async safeImport (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/utils/build/utils.js:188:21)
[0-0]     at async initialisePlugin (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/utils/build/initialisePlugin.js:32:20)
[0-0]     at async BaseReporter._loadReporter (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/runner/build/reporter.js:178:30)
[0-0]     at async Promise.all (index 0)
[0-0]     at async BaseReporter.initReporters (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/runner/build/reporter.js:23:27)
[0-0]     at async Runner.run (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/runner/build/index.js:68:9)
[0-0]     at safeImport (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/utils/build/utils.js:210:15)
[0-0]     at async initialisePlugin (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/utils/build/initialisePlugin.js:32:20)
[0-0]     at async BaseReporter._loadReporter (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/runner/build/reporter.js:178:30)
[0-0]     at async Promise.all (index 0)
[0-0]     at async BaseReporter.initReporters (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/runner/build/reporter.js:23:27)
[0-0]     at async Runner.run (file:///usr/lib/node_modules/@wdio/local-runner/node_modules/@wdio/runner/build/index.js:68:9)
[0-0] FAILED

I tried replacing require with import statements and that giving not a module error..
Am I missing any other dependency here?

[christian-bromann]

This is because @wdio/reporter is listed within dev dependencies while it should actually be a dependency. This way it would correctly require the v7 reporter package and doesn't fail because it tries to require the v8 ESM package.

Two things need to be done:

• rewrite the package to ESM (optional but needs to be done eventually)
• move @wdio/reporter to deps list

Any contributions are welcome!

[dinesh-it]

I will try to rewrite package to ESM later

[christian-bromann]

Thanks for the PR.

I will try to rewrite package to ESM later

Let's tackle this as part of #31