Worked on the pytorch/executorch repository to address compatibility issues with LLVM 17, focusing on error message formatting for tensor data types in custom operations. Applied C++ development skills to identify and fix a bug that caused misleading errors and build-time failures, particularly for users relying on accurate tensor type checks. The solution involved updating error handling logic in the custom_ops_2_out.cpp example, ensuring that error messages now align with LLVM 17 requirements. This targeted fix improved developer experience and stability for downstream users, demonstrating careful debugging, cross-toolchain validation, and a strong understanding of tensor operations and C++ error handling.