> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/core/get-started/faq/mismatch-between-processor-architecture.md).

# There was a mismatch between the processor architecture of the project being built

World's #1 PDF SDK Library for Web, Mobile, Server, Desktop

## warning MSB3270: There was a mismatch between the processor architecture of the project being built.

The architecture of the `PDFNet dll` and your project do not match. Either both the DLL, and project, should be `x64, or x86`. Don't mix and match. If using `AnyCPU`, it is not recommended for use with PDFNet as this can result in errors in some cases. Please see above for details.


---

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