All Katalon Studio Saving Issues (was Unable to save part)

After adding variables to Variables Page, it cannot be saved, prompting “unable to save part.”
My PC is Win7 x64, and the language is Chinese. JDK 10.0.2. Katalon Version: 5.9.x 5.10.x 6.x.x.
The version I can’t reproduce is 5.6.x.

Attached is the log file. The following is a summary:
katalon.log (7.6 KB)

!ENTRY org.eclipse.jface 4 0 2019-03-22 16:39:42.605
!MESSAGE Unhandled event loop exception during blocked modal context.
org.eclipse.swt.SWTException: ‘CodeMirror’ 未定义
at org.eclipse.swt.browser.WebBrowser$EvaluateFunction.function(
at org.eclipse.swt.browser.WebSite.Invoke(
at org.eclipse.swt.browser.WebSite$7.method6(

PS: 未定义 = Undefined

@tomoya_chen please try again with latest version(6.1.0), the issue has been fixed in this version.

I still encounter this problem in ver 6.1.0

Following - any update on when this will be addressed?

Hi @tomoya_chen, @Morgan

Please upgrade your Internet Explorer to IE 11 to prevent this issue.


My computer has IE11 and I’m not sure I get how those two things relate…?


1 Like

That’s a little complicated. But before I explain (I hope clearly) I would agree and ask @duyluong a similar but more pointed question: how exactly does IE relate to Katalon’s saving capability?


One day, IE will be deprecated.

Edge is already de facto deprecated since MS announced Edge will soon be using chromium at its heart. (Chromium is google’s open source browser “engine”).

But why didn’t MS do the same for IE?

First, let’s be clear about terms:

  1. IE = Internet Explorer.
  2. WE = Windows Explorer.
  3. “Under the covers”, WE uses IE.

MS cannot overnight remove IE from Windows without significant technical impact on the OS and its supporting facilities. Worse, perhaps, IE has most of its user base inside huge corporates - MS will not do anything to upset or jeopardize that user base. It would be both financial and b2b-political suicide for MS to rock that boat.

So, moves are afoot to wrest IE-core from the OS but it will not happen overnight and due to the sensitive nature of the move, don’t expect MS to be shouting about it any time soon. That said, it will happen. One day, IE will be deprecated.

Now back to the point of all this. @duyluong

Why is Katalon having saving issues? And by the way, it’s not just this particular issue: Katalon has had saving issues since I started using it over a year ago. I get saving issues daily.

And how does saving relate to IE? Does saving on Windows depend on IE-core in some way? (I don’t know the answer to that - it’s been a long time since I used Win32 APIs not to mention whatever the modern equivalent is.)

1 Like

I’m moving this to the Bugs forum (missed that yesterday).

Calling out to @devalex88 @YoungNgo @duyluong @ThanhTo for some movement on this.

1 Like

We will try to resolve this issue in April.


Thank you sir! :grinning:


@tomoya_chen @Morgan Could you please check if 6.1.2 fix your issues?

Appears to fix it for me! Thank you!

1 Like

Maybe my environment is special. I still encounter this problem in v6.1.2 Build 2.
My PC is Win7 x64, IE 8

log.txt (7.6 KB)

Alex, April is rapidly drawing to a close. Frankly, I don’t see any signs that saving issues will be solved any time soon.


Katalon is first and foremost an IDE. It should save, successfully every time.

Here’s my UX:

  1. Editing a large-ish keyword class.
  2. I notice formatting/assist issues.
  3. I save. Now one of two things happens:
    3.1 The asterisk in the tab is not removed
    3.2 The asterisk is removed but further changes do not cause the asterisk to reappear.
    Whichever of these happens, I know Katalon is screwed at this point, so…
  4. Copy the entire tab content to notepad.
  5. Close the class file in Katalon.
  6. Reopen it
  7. Paste the content from notepad over the content in Katalon.
  8. Save works again.

14 months I’ve been doing this.

Please, take it to the top and let’s get this fixed, before 6.2.n


I use the Katalon version 6.1.4-43458715e and i have the same problem :frowning:
When i work in the same file and i need to save/copy/paste several time, this problem happens.

Please fix that ASAP.
Thank you.


I use the Katalon version 6.1.5 and 6.1.2 suffer to save error that is unable save the part.
I tried to update laste version,but it is not ok.
Please give me some suggestions.

@Alice @Loan_Tran Please try reproducing this issue.

@everyone since there might be different scenarios that cause the issue it would be a great help if you provide detailed descriptions.