Select dropdown error

gistfile1.txt

Uncaught TypeError: Cannot read property 'nextSibling' of null

moveBefore	@	incremental-dom.js:451
alignWithDOM	@	incremental-dom.js:653
coreElementOpen	@	incremental-dom.js:765
elementOpen	@	incremental-dom.js:1015
handleRegularCall_	@	IncrementalDomRenderer.js:538
handleInterceptedOpenCall_	@	IncrementalDomRenderer.js:494
handleCall	@	IncrementalDomAop.js:134
render	@	Toolbar.js:151
renderIncDom	@	JSXRenderer.js:122
renderInsidePatchDontSkip_	@	IncrementalDomRenderer.js:834
renderInsidePatch	@	IncrementalDomRenderer.js:812
renderSubComponent_	@	IncrementalDomRenderer.js:872
renderFromTag_	@	IncrementalDomRenderer.js:773
handleChildRender_	@	IncrementalDomRenderer.js:424
render	@	IncrementalDomChildren.js:107
renderChild	@	IncrementalDomRenderer.js:757
renderChild	@	IncrementalDomRenderer.js:1085
window.iDOMHelpers.renderArbitrary	@	iDOMHelpers.js:59
window.iDOMHelpers.renderArbitrary	@	iDOMHelpers.js:55
render	@	DropTarget.js:97
renderIncDom	@	JSXRenderer.js:122
renderInsidePatchDontSkip_	@	IncrementalDomRenderer.js:834
renderInsidePatch	@	IncrementalDomRenderer.js:812
renderSubComponent_	@	IncrementalDomRenderer.js:872
renderFromTag_	@	IncrementalDomRenderer.js:773
handleChildrenCaptured_	@	IncrementalDomRenderer.js:406
handleInterceptedCloseCall_	@	IncrementalDomChildren.js:181
handleCall	@	IncrementalDomAop.js:134
render	@	index.js:243
renderIncDom	@	JSXRenderer.js:122
renderInsidePatchDontSkip_	@	IncrementalDomRenderer.js:834
renderInsidePatch	@	IncrementalDomRenderer.js:812
renderSubComponent_	@	IncrementalDomRenderer.js:872
renderFromTag_	@	IncrementalDomRenderer.js:773
handleChildrenCaptured_	@	IncrementalDomRenderer.js:406
handleInterceptedCloseCall_	@	IncrementalDomChildren.js:181
handleCall	@	IncrementalDomAop.js:134
render	@	connect.js:203
renderIncDom	@	JSXRenderer.js:122
renderInsidePatchDontSkip_	@	IncrementalDomRenderer.js:834
renderInsidePatch	@	IncrementalDomRenderer.js:812
renderSubComponent_	@	IncrementalDomRenderer.js:872
renderFromTag_	@	IncrementalDomRenderer.js:773
handleChildrenCaptured_	@	IncrementalDomRenderer.js:406
handleInterceptedCloseCall_	@	IncrementalDomChildren.js:181
handleCall	@	IncrementalDomAop.js:134
fnVoid	@	IncrementalDomAop.js:117
handleCall	@	IncrementalDomAop.js:134
render	@	AssetEditor.js:175
renderIncDom	@	JSXRenderer.js:122
renderInsidePatchDontSkip_	@	IncrementalDomRenderer.js:834
(anonymous function)	@	incremental-dom.js:573
f	@	incremental-dom.js:513
patch	@	IncrementalDomRenderer.js:692
update	@	IncrementalDomRenderer.js:965
handleRendererStateKeyChanged_	@	ComponentRenderer.js:93
handleRendererStateKeyChanged_	@	IncrementalDomRenderer.js:511
emit	@	EventEmitter.js:185
informChange_	@	State.js:490
setStateKeyValue_	@	State.js:683
set	@	State.js:152
handleUpdatePostAction_	@	AssetEditor.js:116
handleSubmit_	@	AssetEditor.js:107
wrapper	@	_createBind.js:23
handleSubmit_	@	Toolbar.js:132
wrapper	@	_createBind.js:23
triggerListeners_	@	senna.nocsf.js?browserId=other&languageId=en_US&b=6210&t=1479228893000:4182
triggerMatchedListeners_	@	senna.nocsf.js?browserId=other&languageId=en_US&b=6210&t=1479228893000:4203
triggerDelegatedListeners_	@	senna.nocsf.js?browserId=other&languageId=en_US&b=6210&t=1479228893000:4053
handleDelegateEvent_	@	senna.nocsf.js?browserId=other&languageId=en_US&b=6210&t=1479228893000:3702