Tracer web examples not working

[obarcelonap]

What version of OpenTelemetry are you using?

0.15.0

What version of Node are you using?

v12.18.0

Please provide the code you used to setup the OpenTelemetry SDK

Examples provided within this repo

What did you do?

1. Clone the repo
2. Navigate to opentelemetry-js/examples/tracer-web
3. Execute npm install
4. Execute npm start
5. Select document load test

What did you expect to see?

Open tracing data related to document load in the console

What did you see instead?

Javsacript error

zone.js?9bea:178 Uncaught TypeError: this._tracer.withSpan is not a function
    at eval (documentLoad.js?dae3:76)
    at NoopContextManager.with (NoopContextManager.js?9e96:27)
    at ContextAPI.with (context.js?44eb:60)
    at DocumentLoad._collectPerformance (documentLoad.js?dae3:71)
    at eval (documentLoad.js?dae3:48)
    at ZoneDelegate.invokeTask (zone.js?9bea:402)
    at Zone.runTask (zone.js?9bea:174)
    at invokeTask (zone.js?9bea:483)
    at ZoneTask.invoke (zone.js?9bea:472)
    at timer (zone.js?9bea:2538)

User interaction test fails with the same error when clicking on any button.

Additional context

Downgrading to version 0.14.0 of the libs seems to work, so might be related to #1836

[Flarna]

Plugins from contrib repo are not yet compatible with 0.15.0 so you should stick on 0.14.0 until they get updated.

see open-telemetry/opentelemetry-js-contrib#315

[jonchurch]

Interestingly, they still don't work as written. But only because webpack is trying to run tests that don't exist for these examples.

I think this issue can be closed, I'll open a new one for the webpack failure.