🚨 Error: Cannot read property 'forEach' of null

[ampprojectbot]

Details

Error report: link
First seen: Apr 8, 2020
Frequency: ~ 2,665/day

Stacktrace

Error: Cannot read property 'forEach' of null
    at forEach (extensions/amp-animation/0.1/runners/native-web-animation-runner.js:139:4)
    at devAssert (extensions/amp-story/1.0/animation.js:395:6)
    at runner (extensions/amp-story/1.0/animation.js:594:43)
    at forEach (extensions/amp-story/1.0/animation.js:594:4)
    at resumeAll (extensions/amp-story/1.0/amp-story-page.js:446:12)
    at setState (extensions/amp-story/1.0/amp-story.js:1952:4)
    at onPausedStateUpdate_ (extensions/amp-story/1.0/amp-story.js:742:6)
    at opt_event (src/observable.js:81:14)
    at fire (extensions/amp-story/1.0/amp-story-store-service.js:516:8)

Notes

@renovate-bot modified extensions/amp-animation/0.1/runners/native-web-animation-runner.js:139-139 in #27350 (Mar 30, 2020)
@Enriqe modified extensions/amp-story/1.0/animation.js:394-398 in #20847 (Feb 28, 2019)
@renovate-bot modified extensions/amp-story/1.0/animation.js:594-594 in #27350 (Mar 30, 2020)
@renovate-bot modified extensions/amp-story/1.0/animation.js:594-594 in #27350 (Mar 30, 2020)
@Enriqe modified extensions/amp-story/1.0/amp-story-page.js:445-447 in #20847 (Feb 28, 2019)
@erwinmombay modified src/observable.js:81-81 in #4249 (Sep 9, 2016)
@gmajoulet modified extensions/amp-story/1.0/amp-story-store-service.js:516-533 in #13997 (Mar 15, 2018)

Seen in:

• 06-18 Control (0239+2)
• 06-18 Stable (0239+2)
• 06-18 Stable (0239+3)
• 07-04 Beta (0248)
• 07-04 Experimental (0248)
• +12 more

Possible assignees: @Enriqe, @gmajoulet

/cc @ampproject/release-on-duty

[stale]

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