The error popup with the following error message comes on the screen repeatedly when application is in idle state (no user activity is performed).
Error occurred on client: (TypeError): Unable to get property 'iterator_0' of undefined or null reference.
number: -2146823281
at handleEvent_206....EF34544...cache.html
at dispatchEvent_0..EF34544...cache.html
at sucess_184 ..
..
Can anyone give some pointers to navigate to the problamatic area in the code?
The fact that you're getting it repeatedly is probably due to the fact that you're performing an action on a timer (i.e. perform repeatedly an action).
From the small snippet you've shown, I don't think there's anything we can deduce. Do you have a larger stacktrace? It is still possible the error is in your own code (trying to invoke iterator() on a null object).
Related
I'm using Dexie.js version 3.0.3-rc.3 in a Vue JS project and I occasionally run into this exception in Chrome (86):
Failed to execute 'bound' on 'IDBKeyRange': The parameter is not a valid key.↵ DataError: Failed to execute 'bound' on 'IDBKeyRange': The parameter is not a valid key.
Here's a screenshot of the full error:
I'm fairly certain the problem lies with something in my data being undefined, but I'm trying to find a good way to troubleshoot this. I paused the Chrome dev tools on exceptions and inspected the code around this particular part of Dexie, but it doesn't reveal what data was used to make this exception occur.
Does anyone have any suggestions on how to find out what's actually wrong? It feels a bit like a needle in a haystack.
== Update ==
Below is the full call stack:
Try inspecting the call stack. I know it can be long until you reach a frame within your application code, but the failing call should be there!
this might be silly, Is there any way to automatically place a debug point when an error pops up in MATLAB
Error popping is done manually by
msg = 'Error has occurred'
error(msg)
What I need is, to automatically put a debug (not by manual intervention) after popping this error.
You can use dbstop with a condition:
dbstop if error
MATLAB pauses at any line in any file when the specified condition
occurs.
I'm some tests to trigger and validate a JS alert like this:
it 'triggers a modal' do
accept_alert('Hello world') do
visit '/'
click_button 'Button'
end
end
Which is failing on:
Capybara::ModalNotFound:
Unable to find modal dialog with Hello world
When running headlessly, I thought that the dialog wasn't triggered at all and it was an issue with my JS code but I noticed the test log listed:
* Listening on tcp://127.0.0.1:3001
Modal window has been opened, but you didn't wrap your code into (`accept_prompt` | `dismiss_prompt` | `accept_confirm` | `dismiss_confirm` | `accept_alert`), accepting by default
F
Running in full Chrome I noticed that the modal is being triggered and with the expected message. So now I'm not sure:
why my accept_alert isn't failing the test if the message is actually wrong (e.g. there are hidden characters included and the message is actually Hello world\t. or something)
how is an unwrapped modal since my accept block wraps the whole test body?
I might have a silly syntax error, but I think the above is right & is working on another test. To try and get to the bottom of it, I wanted to disable Capybara's "accepting by default".
Is there any way to:
Make any unexpected modal fail the test (instead of accept/dismiss)?
Log out the text of modals as they occur?
The accepting by default isn't being done by Capybara it's being done be the driver you're using (Cuprite I'm assuming based on the message being produced). If you wrap the action that causes the modal to appear (based on behavior exhibited I'm assuming the visit) rather than the whole test then it will raise an error if the error message isn't correct
since the accept_alert method is only expecting the modal once the block has finished expecting
accept_alert('Hello world') do
visit '/'
end
click_button 'Button'
The behavior of auto-accepting (with warning) unexpected alerts is due to its original design being based on the Poltergeist and I don't believe is configurable currently.
I want to perform click and scroll down action on a element .
* Already i tried with Action class
* javascript executor.
* Robot class
First I am trying to click on element and hold it for a while and then scroll till expected element finds but I am getting error as method has not yet been implemented.
WebDriverException: Method has not yet been implemented (WARNING: The server did not provide any stacktrace information)
1.The above error comes when your app is not matching with the current context
2.According to your code there is a need of context change of app environment you can change context using driver.context("YOUR APP CONTEXT NAME")
3.Some times there must be error in your code like it is not locating correct element or may be you are using unwanted method
Try above 2 points it might help you
if it is not working sorry for wasting your Testing time
Happy Testing
I have a couple of places set up, and they work correctly, except with a delay caused by this issue. They're using nested presenters.
For one place, it appears that any repeat attempt to load it causes an infinite loop of reveal error / unauthorized place (no idea why, no gatekeeper set), but then loads the page correctly. The issue I have with it is the delay and unnecessary log spam it causes - it loads the page correctly, why can't it do it without going through the loop first? Anyone have any ideas?
-- UPDATE --
I am using GWTP 1.4 with GWT 2.7.0, but the project was first created using GWTP 0.6 or maybe earlier. We've updated deprecation etc as we've upgraded, but I know there are anachronisms left.
I tried switching out our ClientPlaceManager with the default, bound the ErrorPlace and UnauthorizedPlace to our home page, and removed its gatekeeper, but it still tries to go to the error place (overrode the revealErrorPlace method and noticed it's throwing the error for a valid token that had been loaded at least once already that session. One page in particular, none of the presenter lifecycle phases are firing, though the presenter is visible (only breaking in firefox I think). I really don't understand it.
-- UPDATE 2 --
I've removed gatekeepers (even specifying #NoGatekeeper), have ensured that the error / unauthorized place have #NoGatekeeper and exists, and overrode revealPlace(request, updateUrl) to output results, and added a try/catch - and it does the exact same thing. An infinite loop, but everything is accessible. my debug output even shows it attempting to reveal the error place, but it never does, just errors out.
This is frustrating to no end.
Stacktrace:
SEVERE: Exception caught: Encountered repeated errors resulting in an infinite
loop. Make sure all users have access to the pages revealed by revealErrorPlace
and revealUnauthorizedPlace. (Note that the default implementations call
revealDefaultPlace)
com.google.gwt.event.shared.UmbrellaException: Exception caught:
Encountered repeated errors resulting in an infinite loop. Make sure all users
have access to the pages revealed by revealErrorPlace and
revealUnauthorizedPlace. (Note that the default implementations call
revealDefaultPlace)
at Unknown.fillInStackTrace_0_g$(student-0.js#36:10580)
at Unknown.Throwable_3_g$(student-0.js#8:10535)
at Unknown.Exception_3_g$(student-0.js#18:10678)
at Unknown.RuntimeException_3_g$(student-0.js#18:61481)
at Unknown.UmbrellaException_3_g$(student-0.js#25:133542)
at Unknown.UmbrellaException_5_g$(student-0.js#26:133603)
at Unknown.fireEvent_7_g$(student-0.js#13:133134)
at Unknown.fireEvent_12_g$(student-0.js#22:154354)
at Unknown.fire_8_g$(student-0.js#17:132936)
at Unknown.fireValueChangedEvent_0_g$(student-0.js#3:154358)
at Unknown.onHashChanged_0_g$(student-0.js#29:154297)
at Unknown.apply_0_g$(student-0.js#28:109006)
at Unknown.entry0_0_g$(student-0.js#16:109062)
at Unknown.anonymous(student-0.js#14:109042)
Caused by: java.lang.RuntimeException: Encountered repeated errors resulting in
an infinite loop. Make sure all users have access to the pages revealed by
revealErrorPlace and revealUnauthorizedPlace. (Note that the default
implementations call revealDefaultPlace)
at Unknown.fillInStackTrace_0_g$(student-0.js#36:10580)
at Unknown.Throwable_2_g$(student-0.js#8:10526)
at Unknown.Exception_2_g$(student-0.js#18:10672)
at Unknown.RuntimeException_2_g$(student-0.js#18:61475)
at Unknown.startError_0_g$(student-0.js#11:92009)
at Unknown.error_2_g$(student-0.js#8:91772)
at Unknown.doRevealPlace_0_g$(student-0.js#10:91762)
at Unknown.revealPlace_1_g$(student-0.js#8:91921)
at Unknown.revealPlace_0_g$(student-0.js#8:91908)
at Unknown.revealErrorPlace_1_g$(student-0.js#8:92109)
at Unknown.error_2_g$(student-0.js#8:91773)
at Unknown.doRevealPlace_0_g$(student-0.js#10:91762)
at Unknown.handleTokenChange_0_g$(student-0.js#12:91848)
at Unknown.onValueChange_4_g$(student-0.js#8:91888)
at Unknown.dispatch_87_g$(student-0.js#16:132968)
at Unknown.dispatch_88_g$(student-0.js#8:132972)
at Unknown.dispatch_0_g$(student-0.js#8:49973)
at Unknown.dispatchEvent_2_g$(student-0.js#14:133006)
at Unknown.doFire_0_g$(student-0.js#9:133250)
at Unknown.fireEvent_8_g$(student-0.js#8:133323)
at Unknown.fireEvent_7_g$(student-0.js#25:133128)
at Unknown.fireEvent_12_g$(student-0.js#22:154354)
at Unknown.fire_8_g$(student-0.js#17:132936)
at Unknown.fireValueChangedEvent_0_g$(student-0.js#3:154358)
at Unknown.onHashChanged_0_g$(student-0.js#29:154297)
at Unknown.apply_0_g$(student-0.js#28:109006)
at Unknown.entry0_0_g$(student-0.js#16:109062)
at Unknown.anonymous(student-0.js#14:109042)
If you're using the DefaultPlaceManager, make sure you have bound DefaultPlace, ErrorPlace and UnauthorizedPlace to Presenter name tokens in your Gin module.
From DefaultPlaceManager's javadoc (http://arcbees.github.io/GWTP/javadoc/apidocs/com/gwtplatform/mvp/client/proxy/DefaultPlaceManager.html):
Important! If you use this class, don't forget to bind DefaultPlace,
ErrorPlace and UnauthorizedPlace to Presenter name tokens in your Gin
module.
Note: The default, error and unauthorized places are revealed without
updating the browser's URL (hence the false value passed in
revealPlace). This will avoid stepping into an infinite navigation
loop if the user navigates back (using the browser's back button).
Here's an example of infinite navigation loop that we want to avoid:
An unauthenticated hits #admin (a place reserved to authenticated
admins) The #unauthorized place is revealed, and the browser's URL is
updated to #unauthorized The user clicks the back button in his
browser, lands in #admin, then #unauthorized, then #admin, and so on.
Also, from https://github.com/ArcBees/GWTP/issues/296:
Verify that the Interface of the Proxy in your Presenter inherit from
ProxyPlace.