Fix NotForkableError

✅ Solution

The "NotForkableError" in LangChain usually arises when trying to fork a process (often with agents or chains) that contains non-forkable resources like CUDA tensors or shared memory objects, especially on platforms like Windows or macOS. To fix this, ensure your code doesn't rely on forking for parallelism when handling CUDA tensors or shared memory. Consider using multithreading (instead of multiprocessing with forking) or restructuring your code to avoid sharing such resources across processes.