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Language Servicebugcompiler supportfixedCheck the Milestone for the release in which the fix is or will be available.Check the Milestone for the release in which the fix is or will be available.
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Description
Environment
- OS and Version: Windows 11 24H2 (26100.4061)
- VS Code Version: 1.100.2
- C/C++ Extension Version: 1.25.3
Bug Summary and Steps to Reproduce
The extension is unable to resolve the compiler path set in c_cpp_properties.json
, which makes it fall back to a default, which it also fails to resolve.
I'm not sure what are the exact steps to reproduce it, but it occurs on a fresh workspace, with a fresh installation of the msys2 environment, with the latest version of the mingw-w64-ucrt-x86_64-gcc
package installed.
Configuration and Logs
c_cpp_properties.json
{
"configurations": [
{
"name": "Win32",
"includePath": [
"${workspaceFolder}/**"
],
"defines": [
"_DEBUG",
"UNICODE",
"_UNICODE"
],
"compilerPath": "C:/msys64/ucrt64/bin/g++.exe",
"intelliSenseMode": "windows-gcc-x64",
"cStandard": "gnu23",
"cppStandard": "gnu++23"
}
],
"version": 4
}
C/C++: Log Diagnostics
-------- Diagnostics - 5/21/2025, 10:26:48 AM
Version: 1.25.3
Current Configuration:
{
"name": "Win32",
"includePath": [
"c:/Users/[user]/[folder]/repos/[folder]/**"
],
"defines": [
"_DEBUG",
"UNICODE",
"_UNICODE"
],
"compilerPath": "C:/msys64/ucrt64/bin/g++.exe",
"intelliSenseMode": "windows-gcc-x64",
"cStandard": "gnu23",
"cppStandard": "gnu++23",
"compilerPathIsExplicit": true,
"cStandardIsExplicit": true,
"cppStandardIsExplicit": true,
"intelliSenseModeIsExplicit": true,
"recursiveIncludesReduceIsExplicit": false,
"recursiveIncludesPriorityIsExplicit": false,
"recursiveIncludesOrderIsExplicit": false,
"compilerPathInCppPropertiesJson": "C:/msys64/ucrt64/bin/g++.exe",
"mergeConfigurations": false,
"recursiveIncludes": {},
"browse": {
"limitSymbolsToIncludedHeaders": true
}
}
Modified Settings:
{
"C_Cpp.autocompleteAddParentheses": true,
"C_Cpp.clang_format_sortIncludes": true,
"C_Cpp.loggingLevel": "Debug",
"C_Cpp.autoAddFileAssociations": false
}
Additional Tracked Settings:
{
"editorTabSize": 4,
"editorInsertSpaces": true,
"editorAutoClosingBrackets": "languageDefined",
"filesEncoding": "utf8",
"filesAssociations": {},
"filesExclude": {
"**/.git": true,
"**/.svn": true,
"**/.hg": true,
"**/.DS_Store": true,
"**/Thumbs.db": true
},
"filesAutoSaveAfterDelay": true,
"editorInlayHintsEnabled": true,
"editorParameterHintsEnabled": true,
"searchExclude": {
"**/node_modules": true,
"**/bower_components": true,
"**/*.code-search": true
},
"workbenchSettingsEditor": "ui"
}
cpptools version (native): 1.25.3.0
Current database path: C:\USERS\[user]\APPDATA\LOCAL\MICROSOFT\VSCODE-CPPTOOLS\4E5EE534AAC885FDEF080DF04991D11C\.BROWSE.VC.DB
Translation Unit Mappings:
[ C:\Users\[user]\[folder]\repos\[folder]\src\main.cpp - source TU]:
Translation Unit Configurations:
[ C:\Users\[user]\[folder]\repos\[folder]\src\main.cpp ]
Process ID: 1132
Memory Usage: 58 MB
Include paths:
Defines:
_DEBUG
UNICODE
_UNICODE
Standard Version: ms_c++17
IntelliSense Mode: windows-msvc-x64
Total Memory Usage: 58 MB
------- Workspace parsing diagnostics -------
Number of files discovered (not excluded): 3
Language server logging
loggingLevel: 6
LSP: (received - deferred) textDocument/didOpen: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/
LSP: (received) cpptools/initialize (id: 1)
LSP: (invoked) cpptools/initialize (id: 1)
cpptools version (TypeScript): 1.25.3
cpptools version (native): 1.25.3.0
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
LSP: Sending response (id: 1)
LSP: (received) cpptools/queryCompilerDefaults (id: 2)
LSP: (invoked) cpptools/queryCompilerDefaults (id: 2)
Querying compiler for default C++ language standard using command line: C:\msys64\ucrt64\bin\gcc.exe -x c++ -E -dM nul
Querying compiler for default C++ language standard using command line: C:\msys64\ucrt64\bin\gcc.exe -x c++ -E -dM /dev/null
Detected language standard version: c++98
Querying compiler's default target using command line: "C:\msys64\ucrt64\bin\gcc.exe" -dumpmachine
Compiler returned default target value: x86_64-w64-mingw32
Compiler info database not connected - skipping load.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -m64 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -m32 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -Wp,-v -E -dM -x c nul
Attempting to get defaults from C compiler in "compilerPath" property: 'C:\msys64\ucrt64\bin\gcc.exe'
Compiler info database not connected - skipping load.
Unable to configure for compiler cl.exe.
Attempting to get defaults from compiler found on the machine: 'C:\msys64\ucrt64\bin\gcc.exe'
Compiler info database not connected - skipping load.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -m64 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -m32 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -Wp,-v -E -dM -x c nul
No suitable compiler found. Please set the "compilerPath" in c_cpp_properties.json.
Compiler info database not connected - skipping load.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -m64 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -m32 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -Wp,-v -E -dM -x c++ nul
Attempting to get defaults from C++ compiler in "compilerPath" property: 'C:\msys64\ucrt64\bin\gcc.exe'
Compiler info database not connected - skipping load.
Unable to configure for compiler cl.exe.
Attempting to get defaults from compiler found on the machine: 'C:\msys64\ucrt64\bin\gcc.exe'
Compiler info database not connected - skipping load.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -m64 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -m32 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -Wp,-v -E -dM -x c++ nul
No suitable compiler found. Please set the "compilerPath" in c_cpp_properties.json.
LSP: Sending response (id: 2)
LSP: (received) cpptools/queryCompilerDefaults (id: 3)
LSP: (invoked) cpptools/queryCompilerDefaults (id: 3)
Compiler info database not connected - skipping load.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -m64 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -m32 -Wp,-v -E -dM -x c nul
LSP: (received) cpptools/didChangeCppProperties (id: 4)
LSP: (received - deferred) cpptools/didChangeVisibleTextEditors
LSP: (received) cpptools/didChangeSettings
LSP: (received) cpptools/didChangeSettings
LSP: (received) cpptools/didChangeSettings
LSP: (received) cpptools/didChangeSettings
LSP: (received - deferred) cpptools/getFoldingRanges: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/ (id: 5)
LSP: $/cancelRequest (cpptools/getFoldingRanges, id: 5)
LSP: Message ignored due to no registered handler: $/setTrace
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -Wp,-v -E -dM -x c nul
LSP: (received) cpptools/didChangeSettings
LSP: (received - deferred) cpptools/getDocumentSymbols: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/ (id: 6)
Attempting to get defaults from C compiler in "compilerPath" property: 'C:\msys64\ucrt64\bin\gcc.exe'
Compiler info database not connected - skipping load.
Unable to configure for compiler cl.exe.
Attempting to get defaults from compiler found on the machine: 'C:\msys64\ucrt64\bin\gcc.exe'
Compiler info database not connected - skipping load.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -m64 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -m32 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c17 -Wp,-v -E -dM -x c nul
No suitable compiler found. Please set the "compilerPath" in c_cpp_properties.json.
Compiler info database not connected - skipping load.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -m64 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -m32 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -Wp,-v -E -dM -x c++ nul
Attempting to get defaults from C++ compiler in "compilerPath" property: 'C:\msys64\ucrt64\bin\gcc.exe'
Compiler info database not connected - skipping load.
Unable to configure for compiler cl.exe.
Attempting to get defaults from compiler found on the machine: 'C:\msys64\ucrt64\bin\gcc.exe'
Compiler info database not connected - skipping load.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -m64 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -m32 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=c++98 -Wp,-v -E -dM -x c++ nul
No suitable compiler found. Please set the "compilerPath" in c_cpp_properties.json.
LSP: Sending response (id: 3)
LSP: (invoked) cpptools/didChangeCppProperties (id: 4)
Code browsing service initialized
Populating file name cache...
Querying compiler for default C++ language standard using command line: C:/msys64/ucrt64/bin/g++.exe -x c++ -E -dM nul
Done populating filename cache. Elapsed time: 1 ms
Querying compiler for default C++ language standard using command line: C:/msys64/ucrt64/bin/g++.exe -x c++ -E -dM /dev/null
Detected language standard version: c++98
Querying compiler's default target using command line: "C:/msys64/ucrt64/bin/g++.exe" -dumpmachine
Compiler returned default target value: x86_64-w64-mingw32
Compiler query command line: C:/msys64/ucrt64/bin/g++.exe -std=gnu++23 -m64 -Wp,-v -E -dM -x c++ nul
Compiler query command line: C:/msys64/ucrt64/bin/g++.exe -std=gnu23 -m64 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:/msys64/ucrt64/bin/g++.exe -std=gnu23 -m32 -Wp,-v -E -dM -x c nul
Compiler query command line: C:/msys64/ucrt64/bin/g++.exe -std=gnu++23 -m32 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:/msys64/ucrt64/bin/g++.exe -std=gnu++23 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:/msys64/ucrt64/bin/g++.exe -std=gnu23 -Wp,-v -E -dM -x c nul
Attempting to get defaults from C++ compiler in "compilerPath" property: 'C:/msys64/ucrt64/bin/g++.exe'
Attempting to get defaults from C compiler in "compilerPath" property: 'C:/msys64/ucrt64/bin/g++.exe'
Unable to configure for compiler cl.exe.
Attempting to get defaults from compiler found on the machine: 'C:\msys64\ucrt64\bin\gcc.exe'
Unable to configure for compiler cl.exe.
Attempting to get defaults from compiler found on the machine: 'C:\msys64\ucrt64\bin\gcc.exe'
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=gnu++23 -m64 -Wp,-v -E -dM -x c++ nul
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=gnu23 -m64 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=gnu23 -m32 -Wp,-v -E -dM -x c nul
Failed to query compiler. Falling back to 32-bit intelliSenseMode.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=gnu++23 -m32 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=gnu++23 -Wp,-v -E -dM -x c++ nul
Failed to query compiler. Falling back to no bitness.
Compiler query command line: C:\msys64\ucrt64\bin\gcc.exe -std=gnu23 -Wp,-v -E -dM -x c nul
No suitable compiler found. Please set the "compilerPath" in c_cpp_properties.json.
No suitable compiler found. Please set the "compilerPath" in c_cpp_properties.json.
Folder: C:\USERS\[user]\[folder]\REPOS\[folder] will be indexed
LSP: (queued) textDocument/didOpen: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/
LSP: (queued) cpptools/didChangeVisibleTextEditors
LSP: (queued) cpptools/getFoldingRanges: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/ (id: 5)
LSP: (queued) cpptools/getDocumentSymbols: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/ (id: 6)
LSP: Sending response (id: 4)
LSP: (invoked) cpptools/getDocumentSymbols: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/ (id: 6)
LSP: (invoked) cpptools/didChangeSettings
Discovering files...
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
LSP: (invoked) cpptools/didChangeSettings
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
LSP: (invoked) cpptools/didChangeSettings
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
LSP: (invoked) cpptools/didChangeSettings
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
Processing folder (recursive): C:\USERS\[user]\[folder]\REPOS\[folder]
LSP: (invoked) cpptools/didChangeSettings
Autocomplete is enabled.
Error squiggles are enabled if all header dependencies are resolved.
Hover is enabled.
IntelliSense Engine = default.
Enhanced Colorization is enabled.
LSP: (invoked) textDocument/didOpen: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/
LSP: Sending response (id: 6)
LSP: (invoked) cpptools/didChangeVisibleTextEditors
Intellisense update pending for: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/
LSP: (invoked) cpptools/getFoldingRanges: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/ (id: 5)
LSP: Request canceled by server (<unknown/completed>, code: -32802, id: 5)
Discovering files: 3 file(s) processed
0 file(s) removed from database
Done discovering files.
Parsing remaining files...
Parsing: 0 files(s) processed
Done parsing remaining files.
LSP: (received) cpptools/didChangeVisibleTextEditors
LSP: (invoked) cpptools/didChangeVisibleTextEditors
IntelliSense update scheduled and TU acquisition started for: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/
Expanding recursive includes for: C:\USERS\[user]\[folder]\REPOS\[folder]\SRC\MAIN.CPP
Done expanding recursive includes for: C:\USERS\[user]\[folder]\REPOS\[folder]\SRC\MAIN.CPP
Reducing recursive includes for: C:\USERS\[user]\[folder]\REPOS\[folder]\SRC\MAIN.CPP
Done reducing recursive includes for: C:\USERS\[user]\[folder]\REPOS\[folder]\SRC\MAIN.CPP
sending compilation args for C:\Users\[user]\[folder]\repos\[folder]\src\main.cpp
define: _DEBUG
define: UNICODE
define: _UNICODE
stdver: ms_c++17
intelliSenseMode: windows-msvc-x64
Update IntelliSense time (sec): 0.047
LSP: (received) cpptools/getFoldingRanges: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/ (id: 7)
LSP: (invoked) cpptools/getFoldingRanges: file:///c%3A/Users/[user]/[folder]/repos/[folder]/src/main.cpp/ (id: 7)
LSP: Sending response (id: 7)
LSP: (received) cpptools/didChangeVisibleTextEditors
LSP: (invoked) cpptools/didChangeVisibleTextEditors
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Language Servicebugcompiler supportfixedCheck the Milestone for the release in which the fix is or will be available.Check the Milestone for the release in which the fix is or will be available.
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