code format does not work

[HuazyYang]

I have cpptools extension installed and clang-format available, but format manually does not work. Extension Host log output is as following:

2026-01-28 16:15:38.717 [error] ErrnoError: No such file or directory
    at Object.lookup (c:\Users\**\.vscode\extensions\shader-slang.slang-language-extension-2.0.4-win32-x64\server\dist\nativeServerMain.js:859:15)
    at Object.lookup (c:\Users\**\.vscode\extensions\shader-slang.slang-language-extension-2.0.4-win32-x64\server\dist\nativeServerMain.js:1485:32)
    at Object.lookupNode (c:\Users\**\.vscode\extensions\shader-slang.slang-language-extension-2.0.4-win32-x64\server\dist\nativeServerMain.js:1243:19)
    at Object.lookupPath (c:\Users\**\.vscode\extensions\shader-slang.slang-language-extension-2.0.4-win32-x64\server\dist\nativeServerMain.js:1171:28)
    at Object.open (c:\Users\**\.vscode\extensions\shader-slang.slang-language-extension-2.0.4-win32-x64\server\dist\nativeServerMain.js:1771:27)
    at Object.readFile (c:\Users\**\.vscode\extensions\shader-slang.slang-language-extension-2.0.4-win32-x64\server\dist\nativeServerMain.js:1936:25)
    at modifyEmscriptenFile (c:\Users\**\.vscode\extensions\shader-slang.slang-language-extension-2.0.4-win32-x64\server\dist\nativeServerMain.js:17750:37)
    at DidChangeTextDocument (c:\Users\**\.vscode\extensions\shader-slang.slang-language-extension-2.0.4-win32-x64\server\dist\nativeServerMain.js:17856:3)
    at MessagePort.<anonymous> (c:\Users\**\.vscode\extensions\shader-slang.slang-language-extension-2.0.4-win32-x64\server\dist\nativeServerMain.js:17797:13)
    at [nodejs.internal.kHybridDispatch] (node:internal/event_target:827:20)

[expipiplus1]

please can you give some more specific reproducer instructions, such as the source you're working on and the versions of all the software involved.

[HuazyYang]

@expipiplus1 After tuning clang-format executable path and rename .clang-format to something else in my working workspace, I figure out that it is seems like my .clang-format file corrupt clang-format formating process, but C/C++ code formating works fine.

Here is my .clang-format file content (utf-8 encoding):

---
Language:        Cpp
# BasedOnStyle:  Google
AccessModifierOffset: -3
AlignAfterOpenBracket: Align
AlignConsecutiveAssignments: false
AlignConsecutiveDeclarations: false
AlignEscapedNewlinesLeft: true
AlignOperands:   true
AlignTrailingComments: true
AllowAllParametersOfDeclarationOnNextLine: true
AllowShortBlocksOnASingleLine: false
AllowShortCaseLabelsOnASingleLine: false
AllowShortFunctionsOnASingleLine: All
AllowShortIfStatementsOnASingleLine: true
AllowShortLoopsOnASingleLine: false
AlwaysBreakAfterDefinitionReturnType: None
AlwaysBreakAfterReturnType: None
AlwaysBreakBeforeMultilineStrings: true
AlwaysBreakTemplateDeclarations: true
BinPackArguments: true
BinPackParameters: true
BraceWrapping:
  AfterClass:      false
  AfterControlStatement: false
  AfterEnum:       false
  AfterFunction:   false
  AfterNamespace:  false
  AfterObjCDeclaration: false
  AfterStruct:     false
  AfterUnion:      false
  BeforeCatch:     false
  BeforeElse:      false
  IndentBraces:    false
BreakBeforeBinaryOperators: None
BreakBeforeBraces: Attach
BreakBeforeTernaryOperators: true
BreakConstructorInitializersBeforeComma: false
BreakAfterJavaFieldAnnotations: false
BreakStringLiterals: true
ColumnLimit:     92
CommentPragmas:  '^ IWYU pragma:'
ConstructorInitializerAllOnOneLineOrOnePerLine: true
ConstructorInitializerIndentWidth: 4
ContinuationIndentWidth: 4
Cpp11BracedListStyle: true
DerivePointerAlignment: true
DisableFormat:   false
ExperimentalAutoDetectBinPacking: false
ForEachMacros:   [ foreach, Q_FOREACH, BOOST_FOREACH ]
IncludeCategories:
  - Regex:           '^<.*\.h>'
    Priority:        1
  - Regex:           '^<.*'
    Priority:        2
  - Regex:           '.*'
    Priority:        3
IncludeIsMainRegex: '([-_](test|unittest))?$'
IndentCaseLabels: true
IndentWidth:     4
IndentWrappedFunctionNames: false
JavaScriptQuotes: Leave
JavaScriptWrapImports: true
KeepEmptyLinesAtTheStartOfBlocks: false
MacroBlockBegin: ''
MacroBlockEnd:   ''
MaxEmptyLinesToKeep: 1
NamespaceIndentation: None
ObjCBlockIndentWidth: 2
ObjCSpaceAfterProperty: false
ObjCSpaceBeforeProtocolList: false
PenaltyBreakBeforeFirstCallParameter: 1
PenaltyBreakComment: 300
PenaltyBreakFirstLessLess: 120
PenaltyBreakString: 1000
PenaltyExcessCharacter: 1000000
PenaltyReturnTypeOnItsOwnLine: 200
PointerAlignment: Left
ReflowComments:  true
SortIncludes:    false
SpaceAfterCStyleCast: false
SpaceBeforeAssignmentOperators: true
SpaceBeforeParens: ControlStatements
SpaceInEmptyParentheses: false
SpacesBeforeTrailingComments: 2
SpacesInAngles:  false
SpacesInContainerLiterals: true
SpacesInCStyleCastParentheses: false
SpacesInParentheses: false
SpacesInSquareBrackets: false
Standard:        Auto
TabWidth:        8
UseTab:          Never
...

As for clang-format, I have no any clang-format installed except the one included in microsoft/cpptools extension:

<vscode local settings path>\extensions\ms-vscode.cpptools-1.30.0-win32-x64\LLVM\bin\clang-format.exe