MicrosoftEdge / MicrosoftEdge/WebView2Feedback

[Problem/Bug]: WebView2Loader.dll 1.0.1823.32 missing symbols

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@ambikakunnath is already working on this.

Since Aug 20, 2025.

bug regression
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PowerShell
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Description

What happened?

SymChk.exe /if WebView2Loader.dll /v
[SYMCHK] Searching for symbols to D:\test\WebView2Loader.dll in path SRVC:\WINDOWS\SYMBOLShttps://msdl.microsoft.com/download/symbols
DBGHELP: Symbol Search Path: SRVC:\WINDOWS\SYMBOLShttps://msdl.microsoft.com/download/symbols
[SYMCHK] Using search path "SRVC:\WINDOWS\SYMBOLShttps://msdl.microsoft.com/download/symbols"
DBGHELP: No header for D:\test\WebView2Loader.dll. Searching for image on disk
DBGHELP: D:\test\WebView2Loader.dll - OK
SYMSRV: BYINDEX: 0x1
C:\WINDOWS\SYMBOLS*https://msdl.microsoft.com/download/symbols
WebView2Loader.dll.pdb
78BA332BDC7F89BC4C4C44205044422E1
SYMSRV: UNC: C:\WINDOWS\SYMBOLS\WebView2Loader.dll.pdb\78BA332BDC7F89BC4C4C44205044422E1\WebView2Loader.dll.pdb - path not found
SYMSRV: UNC: C:\WINDOWS\SYMBOLS\WebView2Loader.dll.pdb\78BA332BDC7F89BC4C4C44205044422E1\WebView2Loader.dll.pd_ - path not found
SYMSRV: UNC: C:\WINDOWS\SYMBOLS\WebView2Loader.dll.pdb\78BA332BDC7F89BC4C4C44205044422E1\file.ptr - path not found
SYMSRV: HTTPGET: /download/symbols/index2.txt
SYMSRV: HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
SYMSRV: HTTPGET: /download/symbols/WebView2Loader.dll.pdb/78BA332BDC7F89BC4C4C44205044422E1/WebView2Loader.dll.pdb
SYMSRV: HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
SYMSRV: HTTPGET: /download/symbols/WebView2Loader.dll.pdb/78BA332BDC7F89BC4C4C44205044422E1/WebView2Loader.dll.pd_
SYMSRV: HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
SYMSRV: HTTPGET: /download/symbols/WebView2Loader.dll.pdb/78BA332BDC7F89BC4C4C44205044422E1/file.ptr
SYMSRV: HttpQueryInfo: 80190194 - HTTP_STATUS_NOT_FOUND
SYMSRV: RESULT: 0x80190194
DBGHELP: WebView2Loader - no symbols loaded
[SYMCHK] MODULE64 Info ----------------------
[SYMCHK] Struct size: 1680 bytes
[SYMCHK] Base: 0x180000000
[SYMCHK] Image size: 188416 bytes
[SYMCHK] Date: 0x6472740d
[SYMCHK] Checksum: 0x0002f3ba
[SYMCHK] NumSyms: 0
[SYMCHK] SymType: SymNone
[SYMCHK] ModName: WebView2Loader
[SYMCHK] ImageName: D:\test\WebView2Loader.dll
[SYMCHK] LoadedImage: D:\test\WebView2Loader.dll
[SYMCHK] PDB: ""
[SYMCHK] CV: RSDS
[SYMCHK] CV DWORD: 0x53445352
[SYMCHK] CV Data: D:\a_work\e\src\out\Release_x64\WebView2Loader.dll.pdb
[SYMCHK] PDB Sig: 0
[SYMCHK] PDB7 Sig: {78BA332B-DC7F-89BC-4C4C-44205044422E}
[SYMCHK] Age: 1
[SYMCHK] PDB Matched: TRUE
[SYMCHK] DBG Matched: TRUE
[SYMCHK] Line nubmers: FALSE
[SYMCHK] Global syms: FALSE
[SYMCHK] Type Info: FALSE
[SYMCHK] ------------------------------------
SymbolCheckVersion 0x00000002
Result 0x00010001
DbgFilename WebView2Loader.dbg
DbgTimeDateStamp 0x00000000
DbgSizeOfImage 0x00000000
DbgChecksum 0x00000000
PdbFilename D:\a_work\e\src\out\Release_x64\WebView2Loader.dll.pdb
PdbSignature {78BA332B-DC7F-89BC-4C4C-44205044422E}
PdbDbiAge 0x00000001
[SYMCHK] [ 0x00000000 - 0x00010001 ] Checked "D:\test\WebView2Loader.dll"
SYMCHK: WebView2Loader.dll FAILED - WebView2Loader.dll.pdb mismatched or not found

Importance

Blocking. My app's basic functions are not working due to this issue.

Runtime Channel

Stable release (WebView2 Runtime)

Runtime Version

No response

SDK Version

No response

Framework

WPF

Operating System

Windows 11

OS Version

No response

Repro steps

Nuget package: Microsoft.Web.WebView2
Version: 1.0.1823.32
Command: SymChk.exe /if WebView2Loader.dll /v

Repros in Edge Browser

No, issue does not reproduce in the corresponding Edge version

Regression

Regression in newer SDK

Last working version (if regression)

No response

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Assessment

This issue has not been assessed yet.

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