i'm currently working on a Naughts and Crosses game in MIT App Inventor 2, and have run into the error in the title, i believe i've narrowed it down to a specific block of my code (the easyBot procedure) but i cannot isolate the issue from there, i have provided source code for perusal, can anyone find the issue here?
source code: https://www.dropbox.com/s/plw8has3df47diw/XOXOXOXO_checkpoint1.aia?dl=0
error : Property setter was expecting a com.google.appinventor.components.runtime.ImageSprite component but got a String instead
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I am getting this error when compiling:
Error in FUN(X[[i]], ...): trying to get slot "presence" from an object of a basic class ("NULL") with no slots
How can I solve this?
You should check the formula to see whether you are indicating the same name
ie
sdmdata<- sdmData(**species~.,** train, test, predictors, bg..)
Writing this in the model will give you an error you described.
sdmmodel<- sdm(**specie~.,** data= methods=c("glm", "brt")).
I solved a similar problem that way
Right so essentially I am creating a user interface and have attempted to add a QtWidgets.QLineEdit to a QVBoxLayout as well as a QtWidgets.QLabel to a different QVBoxLayout. Unfortunately it is not working and throwing up an error:
in build_gui_adddata_device
self.labellayout.addWidget(self.labelsupplierid)
TypeError: QBoxLayout.addwidget(QWidget; int stretch=0, Qt.Alignment alignment=0): first argument of unbound = method must have type QBoxLayout
I have defined labellayout as thus:
print("e")
self.labellayout = QtWidgets.QVBoxLayout
"e" was printed, which is how I know that there is no issue with the definition of the layout itself.
Just for reference this is the QtWidget I was trying to add:
print("f")
self.labelsupplierid = QtWidgets.QLabel("Supplier ID: ")
Again "f" was printed
This is the line that is causing the problem:
print("i")
self.labellayout.addWidget(self.labelsupplierid)
I don't understand why my code isn't working, I am honestly perplexed. My syntax seems to be correct and I have made other build_gui functions that have executed exactly the same type of code (with different widgets, might I add) that have been successful.
Please can someone enlighten me. Many Thanks.
I made a custom report in AX2012, to replace the WHS Shipping pick list. The custom report is RDP based. I have no trouble running it directly (with the parameters dialog), but when I try to use the controller (WHSPickListShippingController), I get an error saying "Pre-Processed RecId not found. Cannot process report. Indicates a development error."
The error is because in the class SrsReportProviderQueryBuilder (setArgs method), the map variable reportProviderParameters is empty. I have no idea why that is. The code in my Data provider runs okay. Here is my code for running the report :
WHSWorkId id = 'LAM-000052';
WHSPickListShippingController controller;
Args args;
WHSShipmentTable whsShipmentTable;
WHSWorkTable whsWorkTable;
clWHSPickListShippingContract contract; //My custom RDP Contract
whsShipmentTable = WHSShipmentTable::find(whsWorkTable.ShipmentId);
args = new Args(ssrsReportStr(WHSPickListShipping, Report));
args.record(whsShipmentTable);
args.parm(whsShipmentTable.LoadId);
contract = new clWHSPickListShippingContract();
controller = new WHSPickListShippingController();
controller.parmReportName(ssrsReportStr(WHSPickListShipping, Report));
controller.parmShowDialog(false);
controller.parmLoadFromSysLastValue(false);
controller.parmReportContract().parmRdpContract(contract);
controller.parmReportContract().parmRdpName(classStr(clWHSPickListShippingDP));
controller.parmReportContract().parmRdlContract().parmLanguageId(CompanyInfo::languageId());
controller.parmArgs(args);
controller.startOperation();
I don't know if I'm clear enough... But I've been looking for a fix for hours without success, so I thought I'd ask here. Is there a reason why this variable (which comes from the method parameter AifQueryBuilderArgs) would be empty?
I'm thinking your issue is with these lines (try removing):
controller.parmReportContract().parmRdpContract(contract);
controller.parmReportContract().parmRdpName(classStr(clWHSPickListShippingDP));
controller.parmReportContract().parmRdlContract().parmLanguageId(CompanyInfo::languageId());
The style I'd expect to see with your contract would be like this:
controller = new WHSPickListShippingController();
contract = controller.getDataContractObject();
contract.parmWhatever('ParametersHere');
controller.parmArgs(args);
And for the DataProvider clWHSPickListShippingDP, usually if a report is using a DataProvider, you don't manually set it, but the DP extends SRSReportDataProviderBase and has an attribute SRSReportParameterAttribute(...) decorating the class declaration in this style:
[SRSReportParameterAttribute(classstr(MyCustomContract))]
class MyCustomDP extends SRSReportDataProviderBase
{
// Vars
}
You are using controller.parmReportContract().parmRdpContract(contract); wrong, as this is more for run-time modifications. It's typically used for accessing the contract for preRunModifyContract overloads.
Build your CrossReference in a development environment then right click on \Classes\SrsReportDataContract\parmRdpContract and click Add-Ins>Cross-reference>Used By to see how that is generally used.
Ok, so now I feel very stupid for spending so much time on that error, when it's such a tiny thing...
The erronous line is that one :
controller.parmReportName(ssrsReportStr(WHSPickListShipping, Report));
Because WHSPickListShipping is the name of the AX report, but I renamed my custom report clWHSPickListShipping. What confused me was that my DataProvider class was executing as wanted.
How do I troubleshoot the following error being thrown by a Microsoft AJAX JavaScript framework method? It is an automatically generated line of JavaScript from a custom User Control in a Web Forms App (Sitefinity 5 CMS)
Error Message:
Unable to get property 'FancyBlockDesigner' of undefined or null reference
Here is the JavaScript that is throwing the error:
Sys.Application.add_init(function() {
$create(SitefinityWebApp.Esd.TheLab.SampleHtmlEditor.FancyBlockDesigner, null, null, {"Editor":"propertyEditor_ctl00_ctl00_ctl00_ctl00_ctl00_Editor","propertyEditor":"propertyEditor"}, $get("propertyEditor_ctl00_ctl00_ctl00"));
});
Rather than discuss the ascx and cs files that try to abstract this detail away from me, I want to know what this error means. If I understand the detail, the abstraction might make more sense.
"$create" function in ASP.NET Ajax creates an instance of JavaScript class. Microsoft had their own opinion on how to make JavaScript object orientated and as time had shown, their approach wasn't exactly perfect.
Anyhow, to try to explain what is happening, let me give a bit of an overview oh how it works. We start by a server side control which implements IScriptControl interface which mandates two members: GetScriptDescriptors and GetScriptReferences. The second one is pretty straightforward - it lets you register references to all JavaScript files that you control will require. The GetScriptDescriptors, on the other hand, let's you define all the instances of JavaScript classes you want to use as well as it lets you set their properties - initialize them, if you will.
What the autogenerated JavaScript code you've pasted says is basically that you have defined in GetScriptDescriptors that you will need an instance of type "SitefinityWebApp.Esd.TheLab.SampleHtmlEditor.FancyBlockDesigner" where you want Editor property to be initialized. This code will go and look for a JavaScript constructor that looks like this:
function SitefinityWebApp.Esd.TheLab.SampleHtmlEditor.FancyBlockDesigner(element) {
}
that most probably also has a prototype defined, something like:
SitefinityWebApp.Esd.TheLab.SampleHtmlEditor.FancyBlockDesigner.prototype = {
}
Now, since the error you have posted states: "Unable to get property 'FancyBlockDesigner' of undefined or null reference", most probably one of the following is the problem:
You have not included the JavaScript file which contains the class (constructor + prototype) that I've talked about above
You have forgot to add the "FancyBlockDesigner" to the constructor (it seems that you do have other object, perhaps through MS Ajax namespaces - "SitefinityWebApp.Esd.TheLab"
You have not registerd the "SampleHtmlEditor" namespace. Make sure at the top of your JS file you have this: Type.registerNamespace("SitefinityWebApp.Esd.TheLab.SampleHtmlEditor");
So, short story long, the function with name "SitefinityWebApp.Esd.TheLab.SampleHtmlEditor.FancyBlockDesigner" cannot be found.
Hope this helps,
Ivan
As a Ruby on Rails newbie, I understand that the "#" and ":" references have different meanings. I saw this post in SO, which described some of the differences.
# indicates a instance variable (e.g., #my_selection)
: indicates an alias (e.g., :my_selection)
I ran into a situation where I had a standard MVC page, similar to all of the other forms/pages in my webapp.
html.erb snippet
<%= form_for #my_selection do |f| %>
route.rb snippet
resources :my_selections
When I attempt to access this page, I get this error:
NoMethodError in selections#create
Showing C:/somedir/myapp/app/views/my_selections/index.html.erb where line #16 raised:
undefined method `my_selection_index_path' for #<#<Class:0x1197e5676>:0x25439c3b>
Line 16 is the form snippet shown above.
All of my other forms/pages in the same web app are set up in exactly the same way and are working fine. However, once I changed the erb form reference to :my_selection, this error went away and my page behaved normally.
Questions:
Is my understanding of the difference between :my_selections and #my_selections correct?
Why would switching to :my_selection resolve my original error?
Is my understanding of the difference between :my_selections and
#my_selections correct?
Nope :(
: indicates a symbol, its not an alias for anything intrinsically. It's like an immutable string, which is often used as a name to represent something.
In places where the Rails api accepts a symbol in place of an instance variable, internally it's actually doing this:
self.instance_variable_get "##{my_symbol}"
Which actually returns the value of the requested instance variable.
So the only reason that you think symbol correspond to instance variable at all, is because the code that drives the API you are using works that way. Without a framework to do that for you, there is no correlation at all.
Why would switching to :my_selection resolve my original error?
for_form(model_instance) will generate a form that submits to the create action if the model instance is unsaved, or to the update action if the model is already exiting in your DB.
No I don't know what's in #my_selection, but whatever class it is doesn't seem to be generating the routes properly.
resources :my_selections
Will generate a route you would invoke like this:
my_selections_path
How your form is generating a route for my_selection_index_path I'm not sure and it really depends on what your models are.
And when you pass a symbol instead, and there is no corresponding ivar, it uses that as the model name for route generation. Which would do the right thing by trying to invoke my_selections_path, which is directly based on the symbol you pass in.