VS 2017中Openframeworks加载3D模型遇LNK1104错误：无法打开.obj文件

Hey there, let's work through this frustrating link error you're hitting as an openFrameworks newbie. That odd cannot open file ';.obj' message is usually tied to a path mistake, project configuration mismatch, or leftover build cruft—here's how to tackle each possibility:

1. Double-check your model path and code #

• First, scan the line where you load the .obj file (like ofLoadModel(...)). The stray semicolon in the error (';.obj') suggests there might be a typo in your file path string—did you accidentally add an extra ; somewhere? For example, ofLoadModel("myModel;.obj") would trigger this. Fix any syntax errors in your path.
• Make sure your .obj file is placed in your project's bin/data folder—openFrameworks looks here for resource files by default. If it's elsewhere, either move it or use a valid relative path (avoid absolute paths if you can, since they break portability).
• Head to your project's Properties > Configuration Properties > Linker > Input and check the "Additional Dependencies" list. If there's an invalid entry (like a stray ;.obj), delete it—this can happen if you accidentally pasted wrong text here.

2. Resolve VS 2017 vs. 2015 project mismatch #

• Since your project was built for VS2015 but you're using 2017, ensure you completed the project upgrade prompt when you first opened it. If you skipped it, you can manually trigger an upgrade via Project > Retarget Solution.
• Go to Properties > Configuration Properties > General and set the "Platform Toolset" to v141 (this is the toolset for VS2017). If it's still set to v140 (VS2015), switching it will fix compatibility issues between your IDE and the project files.
• If the upgrade feels messy, try using openFrameworks' Project Generator to create a fresh VS2017 project, then copy your code and model file into it. This ensures your project is properly configured for your IDE and the latest OF version.

3. Clean and rebuild your project #

• VS build caches can sometimes hold onto broken configurations. Do a full clean:
  • Go to Build > Clean Solution
  • Manually delete the bin and obj folders in your project directory
  • Rebuild the solution with Build > Rebuild Solution
• This clears out any old compiled files that might be causing the link error.

4. Avoid special characters in file/path names #

• If your model file or its folder has spaces, non-English characters, or special symbols (like !, #, or $), the linker might fail to parse the path correctly. Rename your file to something simple (e.g., simpleModel.obj) and ensure the path to your project has no spaces or odd characters.

内容的提问来源于stack exchange，提问作者Samuel Parent