Failed to execute 'Animate' on 'Element': Partial keyframes are not supported

[danielbayley]

This package no longer works since the latest update to Atom. I just get the above error :disappointed:

Atom 1.7.0 OS X 10.11.4

[matthewfarlymn]

Same with me :(

[cwg999]

I didn't get that error, but when I first started up atom it didn't work. I went to view->developer ->reload window and it was fine. . .

[matthewfarlymn]

I'm still getting the same error when I enable the package... Anyone know of an alternative?

[Xcodo]

I'm getting the same issue. The error is thrown every time my cursor passes over the tree view panel.

I've tried reloading and disable-enable the package.

Atom 1.7.2 on Windows 7.

Console:

Window load time: 1419ms
::shadow pseudo-element is deprecated. See https://www.chromestatus.com/features/6750456638341120 for more details.
/deep/ combinator is deprecated. See https://www.chromestatus.com/features/6750456638341120 for more details.
Uncaught (in promise) TypeError: Cannot read property 'style' of undefined
    at updateTreeView (C:/Users/Mark/.atom/packages/autohide-tree-view/lib/autohide-tree-view.js:91:8)
    at enableAutohide (C:/Users/Mark/.atom/packages/autohide-tree-view/lib/autohide-tree-view.js:27:3)
    at start (C:/Users/Mark/.atom/packages/autohide-tree-view/lib/main.js:71:3)
    at updateActivationState (C:/Users/Mark/.atom/packages/autohide-tree-view/lib/main.js:47:35)
    at PaneContainer.module.exports.PaneContainer.observePaneItems (C:\Users\Mark\AppData\Local\atom\app-1.7.2\resources\app.asar\src\pane-container.js:127:9)
    at Workspace.module.exports.Workspace.observePaneItems (C:\Users\Mark\AppData\Local\atom\app-1.7.2\resources\app.asar\src\workspace.js:317:33)
    at C:/Users/Mark/.atom/packages/autohide-tree-view/lib/main.js:28:22
    at process._tickCallback (node.js:392:9)
DOMException: Failed to execute 'animate' on 'Element': Partial keyframes are not supported.
    at Error (native)
    at C:/Users/Mark/.atom/packages/autohide-tree-view/lib/autohide-tree-view.js:172:48
    at animate (C:/Users/Mark/.atom/packages/autohide-tree-view/lib/autohide-tree-view.js:169:10)
    at hideTreeView (C:/Users/Mark/.atom/packages/autohide-tree-view/lib/autohide-tree-view.js:128:10)
    at enableAutohide (C:/Users/Mark/.atom/packages/autohide-tree-view/lib/autohide-tree-view.js:28:3)
    at start (C:/Users/Mark/.atom/packages/autohide-tree-view/lib/main.js:71:3)
    at updateActivationState (C:/Users/Mark/.atom/packages/autohide-tree-view/lib/main.js:47:35)
    at Function.module.exports.Emitter.simpleDispatch (C:\Users\Mark\AppData\Local\atom\app-1.7.2\resources\app.asar\node_modules\event-kit\lib\emitter.js:25:14)
    at Emitter.module.exports.Emitter.emit (C:\Users\Mark\AppData\Local\atom\app-1.7.2\resources\app.asar\node_modules\event-kit\lib\emitter.js:125:28)
    at PaneContainer.module.exports.PaneContainer.didDestroyPaneItem (C:\Users\Mark\AppData\Local\atom\app-1.7.2\resources\app.asar\src\pane-container.js:302:27)
    at Pane.module.exports.Pane.removeItem (C:\Users\Mark\AppData\Local\atom\app-1.7.2\resources\app.asar\src\pane.js:576:17)
    at Pane.module.exports.Pane.destroyItem (C:\Users\Mark\AppData\Local\atom\app-1.7.2\resources\app.asar\src\pane.js:637:16)
    at atom-tabs.TabBarView.onClick (C:\Users\Mark\AppData\Local\atom\app-1.7.2\resources\app.asar\node_modules\tabs\lib\tab-bar-view.js:658:17)
DOMException: Failed to execute 'animate' on 'Element': Partial keyframes are not supported.(…)
DOMException: Failed to execute 'animate' on 'Element': Partial keyframes are not supported.(…)
DOMException: Failed to execute 'animate' on 'Element': Partial keyframes are not supported.(…)
DOMException: Failed to execute 'animate' on 'Element': Partial keyframes are not supported.(…)

[duclet]

The issue seems to be that if you leave the default "minWidth" to the default value of 5, when it gets the value, it thinks it is 0. As such, the animation fails. If you set the "minWidth" to so other non-default value (besizes 0), it should work again. Though it seems like the animation effect is broken too.

[matthewfarlymn]

Thanks for the update @duclet I changed the default to 10 and back to 5 and now it's hiding and showing again.

[danielbayley]

I just set minWidth to 1, and it is hiding/showing now, but no animation.

Also, is there a reason why minWidth can't be set to 0?

[duclet]

@danielbayley It seems like the API of animate may have changed or made stricter. Reason the animation no longer was working and the fact that minWidth can't be 0 was because animation of the width requires the measurement type (pixels, em, etc). I've created a pull request that addresses the issue. Hopefully it gets accepted soon.