“Simple inspect” works fine.

THe trace is:

UndefinedObject(Object)>>doesNotUnderstand: #new
Message>>sentTo:
UndefinedObject(Object)>>doesNotUnderstand: #new
XMLDocumentHighlightDefaults class(XMLHighlightDefaults 
class)>>textColorForShoutProperty:
XMLDocumentHighlightDefaults class(XMLHighlightDefaults 
class)>>defaultDefaultColor
XMLDocumentHighlightDefaults(XMLHighlightDefaults)>>defaultColor
XMLDocumentHighlighter(XMLHighlighter)>>initializeColorsWithDefaults:
XMLDocumentHighlighter>>initializeColorsWithDefaults:
XMLDocumentHighlighter(XMLHighlighter)>>initialize
XMLDocumentHighlighter class(Behavior)>>new
XMLHighlightingWriter>>on:
XMLHighlightingWriter class(XMLWriter class)>>on:
XMLHighlightingWriter class(XMLWriter class)>>new
XMLDocument(XMLNode)>>asHighlightedTextWrittenWith:
XMLDocument(XMLNode)>>treeViewLabelText
[ :each | each treeViewLabelText ] in 
XMLDocument(XMLNode)>>gtInspectorTreeIn:inContext: in Block: [ :each | each 
treeViewLabelText ]
BlockClosure>>glamourValueWithArgs:
BlockClosure(ProtoObject)>>glamourValue:
GLMTreePresentation(GLMFormatedPresentation)>>formatedDisplayValueOf:
GLMTreeMorphNodeModel>>displayText
GLMTreeMorphNodeModel>>elementColumn
[ :node :cont | node perform: self rowMorphGetSelector ] in 
MorphTreeColumn>>rowMorphGetterBlock in Block: [ :node :cont | node perform: 
self rowMorphGetSele...etc...
MorphTreeColumn>>rowMorphFor:
[ :col | 
| v |
v := col rowMorphFor: complexContents.
controls add: v.
col -> v ] in MorphTreeNodeMorph>>buildRowMorph in Block: [ :col | ...
OrderedCollection>>collect:
MorphTreeNodeMorph>>buildRowMorph
MorphTreeNodeMorph>>initRow
MorphTreeNodeMorph>>initWithContents:prior:forList:indentLevel:
[ :item :idx | 
priorMorph := self indentingItemClass new
        initWithContents: item
        prior: priorMorph
        forList: self
        indentLevel: newIndent.
firstAddition ifNil: [ firstAddition := priorMorph ].
morphList add: priorMorph.
"Was this row expanded ? if true -> expand it
                        again "
((item hasEquivalentIn: expandedItems) or: [ priorMorph isExpanded ])
        ifTrue: [ priorMorph isExpanded: true.
                priorMorph
                        addChildrenForList: self
                        addingTo: morphList
                        withExpandedItems: expandedItems ] ] in 
GLMPaginatedMorphTreeMorph(MorphTreeMorph)>>addMorphsTo:from:withExpandedItems:atLevel:
 in Block: [ :item :idx | ...
OrderedCollection(SequenceableCollection)>>withIndexDo:



.

If it isn’t obvious what is going wrong from the above, I gues the thing to do 
is reinstall Pharo, and go through the steps of installing the various packages 
while recording them. If I get the same error, I’ll post the video of what I 
did  on youtube. If I don’t an error, then it was operator error from the 
start, obviously.

Thanks for your help.


L

> On Jan 7, 2020, at 3:17 PM, Sven Van Caekenberghe <s...@stfx.eu> wrote:
> 
> Something is wrong in your image. 
> The XML package adds special GT inspector views, the error is probably there.
> This has nothing to do with the platform.
> 
> BTW, a stack trace would be much appreciated, like:
> 
> ZeroDivide when doing: 1/0
> 
> SmallInteger>>/
> UndefinedObject>>DoIt
> OpalCompiler>>evaluate
> RubSmalltalkEditor>>evaluate:andDo:
> RubSmalltalkEditor>>highlightEvaluateAndDo:
> [ textMorph textArea editor highlightEvaluateAndDo: ann action.
> textMorph shoutStyler style: textMorph text ] in [ textMorph textArea
>       handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: ann 
> action.
>               textMorph shoutStyler style: textMorph text ] ] in 
> GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate:
>  in Block: [ textMorph textArea editor highlightEvaluateAndDo...etc...
> RubEditingArea(RubAbstractTextArea)>>handleEdit:
> [ textMorph textArea
>       handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: ann 
> action.
>               textMorph shoutStyler style: textMorph text ] ] in 
> GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate:
>  in Block: [ textMorph textArea...
> WorldState>>runStepMethodsIn:
> WorldMorph>>runStepMethods
> WorldState>>doOneCycleNowFor:
> WorldState>>doOneCycleFor:
> WorldMorph>>doOneCycle
> WorldMorph class>>doOneCycle
> [ [ WorldMorph doOneCycle.
> Processor yield.
> false ] whileFalse: [  ] ] in MorphicUIManager>>spawnNewProcess in Block: [ [ 
> WorldMorph doOneCycle....
> [ self value.
> Processor terminateActive ] in BlockClosure>>newProcess in Block: [ self 
> value....
> 
> You can copy that from the debugger extra menu (top right).
> 
> Try 'Basic Inspect It' instead of 'Inspect It', this will use an older less 
> complex inspector, that will probably work.
> 
>> On 7 Jan 2020, at 23:06, LawsonEnglish <lengli...@cox.net> wrote:
>> 
>> Well, as you can see in my response elsewhere, none of that actually works 
>> as you describe.
>> 
>>>    ingredientsXML := XMLHTMLParser parseURL: 
>>> 'https://ndb.nal.usda.gov/ndb/search/list?sort=ndb&ds=Standard+Reference'.
>> 
>> Doesn’t raise any errors, with or without the local variable declaration.
>> 
>>> ingredientsXML = nil returns false
>> 
>>> ingredientsXML inspect
>> 
>> Raises the message “#new on nil
>> 
>> I “do it” on the entire text or on each line in the order entered. It 
>> doesn’t matter.
>> 
>> I’m using a Mac with Mac OS X Catalina, using Pharo 7.
>> 
>> 
>> L
>> 
>> 
>>> On Jan 7, 2020, at 5:31 AM, Torsten Bergmann <asta...@gmx.de> wrote:
>>> 
>>> Agree with Peter - but "screw things up" means then the users screws up.
>>> 
>>> Pharo and the Playground is working fine on them. But one has to know the 
>>> difference when 
>>> working with the Playground:
>>> 
>>> 1. If you evaluate with an explicit variable declaration than the variable 
>>> is freshly defined and used like a temporary variable in a method:
>>> 
>>>    | ingredientsXML |
>>>    ingredientsXML := XMLHTMLParser parseURL: 
>>> 'https://ndb.nal.usda.gov/ndb/search/list?sort=ndb&ds=Standard+Reference'.
>>>    ingredientsXML inspect
>>> 
>>> You have to selected the full text and evaluate it (either with "do It" or 
>>> "print it" to get the result. 
>>> 
>>> If you only select "ingredientsXML inspect" part first and evaluate then 
>>> the variable "ingredientsXML" is not known, undefined 
>>> and uninitialized and therefore results in a nil.
>>> 
>>> 2. If in the playground you do not give an explicit variable declaration at 
>>> the beginning line like for example in
>>> 
>>>        ingredientsXML := XMLHTMLParser parseURL: 
>>> 'https://ndb.nal.usda.gov/ndb/search/list?sort=ndb&ds=Standard+Reference'.
>>>        ingredientsXML inspect    
>>> 
>>>  then a "workspace local variable" is implicitly created by the playground 
>>> as soon as you evaluate which means 
>>> 
>>>    - "ingredientsXML" is defined as a workspace variable as soon as you 
>>> evaluate
>>>    - the contents of "ingredientsXML" is preserved over different 
>>> evaluations within the workspace / playground
>>>    - you can use only "ingredientsXML" within this playground (not in 
>>> another plaground)
>>> 
>>>  So you can evaluate the first line doing the assignment (this initializes 
>>> the workspace variable "ingredientsXML" for the current playground) 
>>>  and when you later want to use it again you can just inspect it or 
>>> evaluate the second line in the same playground.
>>> 
>>>  If you like you can open a second playground which can have its own 
>>> "ingredientsXML" workspace variable.
>>> 
>>> Workspace variables (or "playground variables") are convenient for 
>>> experimenting - as they are preserved - but
>>> yes they might confuse you when you cant remember what was done with them 
>>> last.
>>> 
>>> Bye
>>> T.
>>> 
>>>> Gesendet: Dienstag, 07. Januar 2020 um 09:55 Uhr
>>>> Von: "PBKResearch" <pe...@pbkresearch.co.uk>
>>>> An: "'Any question about pharo is welcome'" <pharo-users@lists.pharo.org>
>>>> Betreff: Re: [Pharo-users] [ANN] XMLParserHTML moved to GitHub
>>>> 
>>>> It may be a quirk of how Pharo Playground works. It doesn't need local 
>>>> variable declarations - which is convenient - but putting them in can 
>>>> screw things up. Try your snippet again without the first line. Compare 
>>>> Torsten's code.
>>>> 
>>>> HTH
>>>> 
>>>> Peter Kenny
>>>> 
>>>> -----Original Message-----
>>>> From: Pharo-users <pharo-users-boun...@lists.pharo.org> On Behalf Of 
>>>> Torsten Bergmann
>>>> Sent: 07 January 2020 07:47
>>>> To: pharo-users@lists.pharo.org
>>>> Cc: pharo-users@lists.pharo.org
>>>> Subject: Re: [Pharo-users] [ANN] XMLParserHTML moved to GitHub
>>>> 
>>>> Works without a problem (Pharo 8 on Windows), see attached. So it looks 
>>>> like a local problem.
>>>> 
>>>> Just check the debugger and compare to the squeak version where you run in 
>>>> trouble.
>>>> Maybe the document could not be retrieved on your machine.
>>>> 
>>>> Bye
>>>> T.
>>>> 
>>>>> Gesendet: Dienstag, 07. Januar 2020 um 04:42 Uhr
>>>>> Von: "LawsonEnglish" <lengli...@cox.net>
>>>>> An: pharo-users@lists.pharo.org
>>>>> Betreff: Re: [Pharo-users] [ANN] XMLParserHTML moved to GitHub
>>>>> 
>>>>> Torsten Bergmann wrote
>>>>>> Hi,
>>>>>> 
>>>>>> 
>>>>>> You can load using
>>>>>> 
>>>>>> Metacello new
>>>>>>  baseline: 'XMLParserHTML';
>>>>>>  repository: 'github://pharo-contributions/XML-XMLParserHTML/src';
>>>>>>  load.
>>>>>> 
>>>>>> 
>>>>>> Bye
>>>>>> T.
>>>>> 
>>>>> Hi,
>>>>> 
>>>>> I'm trying to use the sample code in the pharo screen scraping booklet 
>>>>> — 
>>>>> http://books.pharo.org/booklet-Scraping/pdf/2018-09-02-scrapingbook.pdf — 
>>>>> but while everything appears to load, I'm getting an odd behavior from:
>>>>> 
>>>>> /| ingredientsXML |
>>>>> ingredientsXML := XMLHTMLParser parseURL:
>>>>> 'https://ndb.nal.usda.gov/ndb/search/list?sort=ndb&ds=Standard+Reference'.
>>>>> ingredientsXML inspect/
>>>>> 
>>>>> "#new was sent to nil"
>>>>> 
>>>>> No matter what URL I use, I get the same message.
>>>>> 
>>>>> I'm using Mac OS Catalina so I thought I might have some strange Mac 
>>>>> OS security issue (like it was quietly refusing to allow Pharo to 
>>>>> access the internet), but I tested with squeak and the old
>>>>> 
>>>>> /html :=(HtmlParser parse:
>>>>> 'https://ndb.nal.usda.gov/ndb/search/list?sort=ndb&ds=Standard+Reference'
>>>>> asUrl retrieveContents content)/
>>>>> 
>>>>> and that returns actual html without any problems.
>>>>> 
>>>>> 
>>>>> Suggestions?
>>>>> 
>>>>> 
>>>>> Thanks.
>>>>> 
>>>>> L
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> --
>>>>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html
>>>>> 
>>>>> 
>>>> 
>>>> 
>>>> 
>>> 
>> 
>> 
> 
> 


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