Setting breakpoint in editor does not work after updating extenson to VS2022

Question

Setting breakpoint in editor does not work after updating extenson to VS2022

Sajith 11

We have a Visual Studio extension that implements a custom editor, language service and a debugger.
After updating the extension for VS2022, not able to set a breakpoint in editor.
We have implemented a custom language service and
and on setting a breakpoint in editor, ValidateBreakpointLocation gets called and processed correctly.
But breakpoint is not getting set and gives error-
“A breakpoint could not be inserted at this location. Operation not supported. Unknown error: 0x80070057.”

This works fine in VS2019.

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Answer 1

Anna Xiu-MSFT 31,056 Microsoft External Staff

Hi @Sajith ,

Welcome to Microsoft Q&A!

Could you share me your specific version of VS2022？

Please relaunch your Visual Studio and try to rebuild your project.

Besides, please check if you set a breakpoint span that contains the specified line and column.
https://learn.microsoft.com/en-us/dotnet/api/microsoft.visualstudio.textmanager.interop.ivslanguagedebuginfo.validatebreakpointlocation?view=visualstudiosdk-2022
https://stackoverflow.com/questions/27499129/allowing-to-insert-breakpoint-in-visual-studio-editor-extension

Sincerely,
Anna
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Sajith 11 Reputation points

2022-03-15T14:02:11.943+00:00
Hi Anna,

Thanks for your reply.
I am using Visual Studio Professional 2022 (64-bit) - Version 17.1.1

Breakpoint span is set correctly and this is working fine in VS2019.

We have implemented language service deriving from Microsoft.VisualStudio.Package.LanguageService.
ValidateBreakpointLocation and other required methods are overridden in the derived class.

I have tried setting breakpoint span to the current line as in
microsoft.visualstudio.textmanager.interop.ivslanguagedebuginfo.validatebreakpointlocation

if (pCodeSpan != null) { // Make sure the span is set to at least the current // position by default. pCodeSpan[0].iStartLine = line; pCodeSpan[0].iStartIndex = col; pCodeSpan[0].iEndLine = line; pCodeSpan[0].iEndIndex = col; }

Thanks,
Sajith
Anna Xiu-MSFT 31,056 Reputation points Microsoft External Staff

2022-03-16T07:10:17.447+00:00

Hi Sajith, could you create a new project in VS2022 and check if the error appears in specific project or not?
You can try to repair your VS2022 through Visual Studio Installer > More > Repair.
Sajith 11 Reputation points

2022-03-16T17:49:51.927+00:00

Hi Anna,
Because the project has multiple components and Language Service is just one of them, I am finding it difficult to create a new project afresh. I will try to do this.

I have already tried repair of VS2022, but that didn't help.
I have tried this in another machine on VS2022 installing the extension, there also got the same error.

Thanks,
Sajith
Sajith 11 Reputation points

2022-03-25T18:56:42.603+00:00

Hi Anna,

I have tried updating all references in the project, but could not get this working.
We are using a legacy language service, and trying to update this from VS2019 to VS2022.

In the same scenario, when trying to insert a breakpoint, in VS2019, we get a call to
IVsTextLines.CreateLineMarker and then IVsProject3.OpenItem.

But in VS2022, these methods do not get called and shows error-
“A breakpoint could not be inserted at this location. Operation not supported. Unknown error: 0x80070057.”

Following is roughly the sequence of calls when inserting a breakpoint-

IVsProject3.GetMkDocument
IVsTextLines.GetLastLineIndex
IVsTextLines.GetLengthOfLine
IVsTextLines.GetLanguageServiceID
LanguageService.ValidateBreakpointLocation
IVsTextLines.GetLengthOfLine

What could be the reason we are not getting a call to IVsTextLines.CreateLineMarker after this,
Is there any other interface that needs to be implemented for this to work?
Any pointers on what related to this has changed in VS2022 or things to try out would be really helpful.

Thanks,
Sajith
Sajith 11 Reputation points

2022-03-26T14:07:02.397+00:00

To add to this we are not supporting Temporary and Dependent breakpoints from our language service or debugger

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Setting breakpoint in editor does not work after updating extenson to VS2022

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