Visual Studio compile option is grayed out for a single cpp file
I have been asked to help a colleague regarding a mysterious build error in one of the projects in a common solution. The build error happens in the linkage stage, a class constructor defined in a static lib (a.lib) is not found when it is used in a lib (b.lib) that includes that a.lib. After careful investigation I figured out that:
- The constructor is correctly defined in the class.
- The class is defined in a cpp file that belongs to the project.
- If a try to navigate to the cpp file or the class constructor with intellisense everything goes as expected.
vcxproj file ClCompile ItemGroup:
...
<ClCompile Include="Source\CMYKOVBLab.cpp" />
<ClInclude Include="Source\CMYKOBGLab.cpp" /> <--- The file is here.
<ClCompile Include="Source\CMYKOVBRGB.cpp" />
...
In summary, what is needed to link the library is there, but the linkage error persists.
One strange thing I noticed is the fact that the cpp with the class constructor not found could not be compiled by hitting Ctrl-F7 or the right button in a.lib. That option is grayed out, but only for that particular file. Moreover, when I build the a.lib library where this file should be compiled, it is not, and therefore no object file is created.
What can be the cause? How can I fix it?
I am using Visual Studio Professional 2015 Update 3.
In VS 2015 the compile include files defined in the .vcxproj project file are expected to be in lexicographical order.
This is no longer needed in VS 2017 but when it is not respected, VS 2015 can create this kind of chaos.
Your colleague has modified manually the .vcxproj project file to include that file, but he has not respect the lexicographical order. You need simply to remove the file from the project and add it back again. Visual Studio will include it in the right place and your build will succeed.
Hope this can help other people too.
- What is the fastest way to swap values in C?
- What's the best way to do a lookup table in C?
- Why use print("%s", "string") and not just only print("string")?
- Getting HWND of current Process
- Is there a systemd-independent function for getting a USB device model?
- How can i add line breaks when rendering Text using X11,
- Two different times in C
- How does Boehm's Garbage Collector free memory without creating a separate thread for the GC?
- I run into a about rvalue concept problem in C Programming Language
- This is a C program meant to run the string characters in the array
- _Atomic struct assignment of arbitrary size in C?
- Get home directory in Linux
- Detecting Endianness
- How do I get a hexadecimal string representation of a GdkRGBA struct in C?
- How is the conditional operator parsed?
- Why an integer has different value even when its position is not changed
- In C, is it true that PRId64 is defined if-and-only-if int64_t is available?
- Poor performance of check library, when using assertions
- Is there any way to flash a raspberry Pi Pico with a firmware contained in a pointer inside it?
- Concatenating command line arguments
- Best practices for circular shift (rotate) operations in C++
- Static build of GMP for MSVC (Windows)
- How to build GMP in MSYS2?
- tun program not creating device node
- C parameter pass by value when parameter is a structure. Can we ensure at least the single parameter is atomic?
- Time complexity in Divide and Conquer algorithms
- Compute fast log base 2 ceiling
- How to convert an OpenCV cv::Mat into a float* that can be fed into Vlfeat vl_dsift_process ?
- Are different translation units allowed to define structures with the same name?
- What is the difference between terminating a program with Ctrl+d and Ctrl+c when writing to txt file