Load error with JQueryWidgetBox

MetacelloFetchingMCSpecLoader(Object)>>error:

MetacelloFetchingMCSpecLoader(MetacelloCommonMCSpecLoader)>>retryingResolvePackageSpecReferences:gofer:

[| references nearestReference cachedReference loadedVersionInfo externalReference mcVersion |

self flag: #cleanup.

cachedReference := self resolvePackageSpec: packageSpec cachedGofer: self loaderPolicy cacheGofer.

(cachedReference ~~ nil

and: [packageSpec getFile ~~ nil])

ifTrue: [cachedReference name = packageSpec file

ifTrue: [^ self]].

references := self retryingResolvePackageSpecReferences: packageSpec gofer: gofer.

nearestReference := references last asMetacelloCachingResolvedReference.

(cachedReference ~~ nil

and: [cachedReference name = nearestReference name])

ifTrue: [^ self].

(self ignoreImage not

and: [(loadedVersionInfo := self currentVersionInfoFor: packageSpec) ~~ nil])

ifTrue: [loadedVersionInfo name = nearestReference name

ifTrue: [^ self]].

externalReference := (references

select: [:ref | ref name = nearestReference name]) first asMetacelloCachingResolvedReference.

self repositoryMap at: externalReference name put: externalReference repository.

(self

resolveDependencies: externalReference

into: (OrderedCollection with: nearestReference))

do: [:reference | 

| pSpec l |

mcVersion := reference version.

(l := (GoferVersionReference name: reference name)

resolveAllWith: self loaderPolicy cacheGofer) isEmpty

ifTrue: [self cacheRepository storeVersion: mcVersion.

reference == nearestReference

ifTrue: [pSpec := packageSpec]

ifFalse: [pSpec := packageSpec project packageSpec.

pSpec name: mcVersion info].

self loadData

addVersion: mcVersion

versionInfo: mcVersion info

resolvedReference: reference

packageSpec: pSpec]].

self loaderPolicy resetCacheGofer.

self preLoad: packageSpec.

(MetacelloDirective

loadPackage: packageSpec

externalReference: externalReference

loader: self)

addTo: self loadDirective.

self postLoad: packageSpec.

Transcript cr; show: 'Fetched -> ' , externalReference name , ' --- ' , externalReference repository description , ' --- ' , nearestReference repository description] in MetacelloFetchingMCSpecLoader>>linearLoadPackageSpec:gofer:

[:bar | 

bar value: 1.

aBlock value.

bar value: 2] in MetacelloPharoPlatform>>do:displaying:

[result := workBlock value: progress] in [[result := workBlock value: progress]

on: ProgressNotification

do: [:ex | 

ex extraParam isString

ifTrue: [SystemProgressMorph uniqueInstance labelAt: progress put: ex extraParam].

ex resume]] in ProgressInitiationException>>defaultMorphicAction

BlockClosure>>on:do:

[[result := workBlock value: progress]

on: ProgressNotification

do: [:ex | 

ex extraParam isString

ifTrue: [SystemProgressMorph uniqueInstance labelAt: progress put: ex extraParam].

ex resume]] in ProgressInitiationException>>defaultMorphicAction

BlockClosure>>ensure:

ProgressInitiationException>>defaultMorphicAction

MorphicUIManager>>progressInitiationExceptionDefaultAction:

ProgressInitiationException>>defaultAction

UndefinedObject>>handleSignal:

MethodContext(ContextPart)>>handleSignal:

MethodContext(ContextPart)>>handleSignal:

MethodContext(ContextPart)>>handleSignal:

ProgressInitiationException(Exception)>>signal

ProgressInitiationException>>display:at:from:to:during:

ProgressInitiationException class>>display:at:from:to:during:

ByteString(String)>>displayProgressAt:from:to:during:

MetacelloPharoPlatform>>do:displaying: