Too many input files specified in moc

SirMarcin

I have a problem with Qt. I'm using Qt for VS2022. When I added the header paths via the Directory.Build.props file, there's a problem with the moc.

Qt: 6.9.1
1>moc AquariumPlugin.h
1> moc: Too many input files specified: 'D:\Users\Marcin\Project2\Plugin.h' 'D:\Users\Marcin\Project2\'
1> Usage: C:/Qt/6.9.1/msvc2022_64/bin/moc [options] [header-file] [@option-file] [MOC generated json file]
1> Qt Meta Object Compiler version 69 (Qt 6.9.1)
1> Options:
1>   -?, -h, --help                    Displays help on commandline options.
1>   --help-all                        Displays help, including generic Qt
1>                                     options.
1>   -v, --version                     Displays version information.
1>   -o <file>                         Write output to file rather than stdout.
1>   -I <dir>                          Add dir to the include path for header
1>                                     files.
1>   -F <framework>                    Add Mac framework to the include path for
1>                                     header files.
1>   -E                                Preprocess only; do not generate meta
1>                                     object code.
1>   -D <macro[=def]>                  Define macro, with optional definition.
1>   -U <macro>                        Undefine macro.
1>   -M <key=value>                    Add key/value pair to plugin meta data
1>   --compiler-flavor <flavor>        Set the compiler flavor: either "msvc" or
1>                                     "unix".
1>   -i                                Do not generate an #include statement.
1>   -p <path>                         Path prefix for included file.
1>   -f <file>                         Force #include <file> (overwrite default).
1>   -b <file>                         Prepend #include <file> (preserve default
1>                                     include).
1>   --include <file>                  Parse <file> as an #include before the main
1>                                     source(s).
1>   -n <which>                        Do not display notes (-nn) or warnings
1>                                     (-nw). Compatibility option.
1>   --no-notes                        Do not display notes.
1>   --no-warnings                     Do not display warnings (implies
1>                                     --no-notes).
1>   --ignore-option-clashes           Ignore all options that conflict with
1>                                     compilers, like -pthread conflicting with
1>                                     moc's -p option.
1>   --output-json                     In addition to generating C++ code, create
1>                                     a machine-readable JSON file in a file that
1>                                     matches the output file and an extra .json
1>                                     extension.
1>   --debug-includes                  Display debug messages of each considered
1>                                     include path.
1>   --collect-json                    Instead of processing C++ code, collect
1>                                     previously generated JSON output into a
1>                                     single file.
1>   --output-dep-file                 Output a Make-style dep file for build
1>                                     system consumption.
1>   --dep-file-path <file>            Path where to write the dep file.
1>   --dep-file-rule-name <rule name>  The rule name (first line) of the dep file.
1>   --require-complete-types          Require complete types for better
1>                                     performance
1> Arguments:
1>   [header-file]                     Header file to read from, otherwise stdin.
1>   [@option-file]                    Read additional options from option-file.
1>   [MOC generated json file]         MOC generated json output

This is my props file. What should I do?

<?xml version="1.0" encoding="utf-8"?>

<Project>

<ItemDefinitionGroup>

<ClCompile>

<AdditionalIncludeDirectories>

	`$(ProjectDir);`
"D:\Users\Marcin\C++\QC\include";

"C:\vcpkg\installed\x64-windows\include\opencv4";

"C:\vcpkg\installed\x64-windows\include\opencv4\opencv2";

%(AdditionalIncludeDirectories)

  `</AdditionalIncludeDirectories>`
</ClCompile>

</ItemDefinitionGroup>

</Project>

Hanson

@SirMarcin Hi
You can right-click on “AquariumPlugin.h” and click on the properties menu on VS2022.
See the moc.exe settings is right or not.

SirMarcin

My problem is deeper and primarily concerns the lack of access to header files from the props file. You won't believe it, but I know what's going on, although it's a bit of a bummer. If I set my header file to a moc file, Qt suddenly doesn't see any include files. This happens with everything. moc files are treated as C/C++ headers and unfortunately don't have inherited paths from the props file. Any ideas on how to add these paths in the props file for moc as well? Currently, if I specify "local" at the very top of the paths window, it works – the moc file compiler sees these paths. But it doesn't want to respect the header file folders inherited from the moc file. How do I add an equivalent for QtMoc in the props file? I want the compiler to see the additional directories.

Hanson

@SirMarcin I'm not sure how to deal with your situation :(
but the <AdditionalIncludeDirectories> node in the props file is passed to the compiler to specify the directories to include header files, not to compile those directory files.