Error while loading Mars on Ubuntu

SmalltalkImage(Object)>>error:
SmalltalkImage>>add:toList:after:
SmalltalkImage>>addToStartUpList:after:
ExternalObject class>>initialize
MCMethodDefinition>>postloadOver:
MCPackageLoader>>basicLoadDefinitions in Block: [ :each | each postloadOver: (self obsoletionFor: ...etc...
OrderedCollection(Collection)>>do:displayingProgress:every: in Block: [ :each | ...
OrderedCollection>>do:
OrderedCollection(Collection)>>do:displayingProgress:every: in Block: [ :bar | ...
BlockClosure>>cull:
Job>>run in Block: [ result := block cull: self ]
BlockClosure>>on:do:
Job>>run in Block: [ ...
BlockClosure>>ensure:
Job>>run
MorphicUIManager(UIManager)>>displayProgress:from:to:during:
ByteString(String)>>displayProgressFrom:to:during:
OrderedCollection(Collection)>>do:displayingProgress:every:
OrderedCollection(Collection)>>do:displayingProgress:
MCPackageLoader>>basicLoadDefinitions
MCPackageLoader>>basicLoad in Block: [ self basicLoadDefinitions ]
BlockClosure>>on:do:
MCPackageLoader>>handleLoadErrorsDuring: in Block: [ ...
BlockClosure>>on:do:
MCPackageLoader>>handleLoadErrorsDuring:
MCPackageLoader>>basicLoad in Block: [ self handleLoadErrorsDuring: [ self basicLoadDef...etc...
BlockClosure>>ensure:
MCPackageLoader>>basicLoad
MCPackageLoader>>loadWithNameLike: in Block: [ self basicLoad ]
BlockClosure>>ensure: