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您在使用Langflow中的向量搜索组件时遇到的问题可能是由于Langflow版本1.0.11与Python 3.12之间的兼容性问题。根据pyproject.toml文件，Langflow指定其Python依赖项如下：

python = ">=3.10,<3.12"

这表明Langflow与Python 3.12 1(https://github.com/logspace-ai/langflow/blob/dev/pyproject.toml)不兼容。
要解决此问题，您应该使用一个兼容的Python版本，例如Python 3.11。在切换到兼容的Python版本后，请确保已安装所有必要的依赖项，包括langchain_community包，该包对于某些向量搜索组件是必需的：

pip install langchain_community

如果您仍然看不到向量搜索组件，可以在Langflow设置中手动添加或配置它们。例如，要添加自定义搜索组件，可以遵循现有组件的结构：

1. 定义您的自定义搜索组件：

# src/backend/base/langflow/components/vectorsearch/MyCustomSearch.py

class MyCustomSearchComponent:
    def __init__(self, config):
        self.config = config
        # Initialize your custom search component with the provided configuration

    def search(self, query):
        # Implement the search functionality
        pass

1. 将它导入并包含在__init__.py文件中：

# src/backend/base/langflow/components/vectorsearch/__init__.py

from .AstraDBSearch import AstraDBSearchComponent
from .ChromaSearch import ChromaSearchComponent
from .FAISSSearch import FAISSSearchComponent
from .MongoDBAtlasVectorSearch import MongoDBAtlasSearchComponent
from .PineconeSearch import PineconeSearchComponent
from .QdrantSearch import QdrantSearchComponent
from .RedisSearch import RedisSearchComponent
from .SupabaseVectorStoreSearch import SupabaseSearchComponent
from .VectaraSearch import VectaraSearchComponent
from .WeaviateSearch import WeaviateSearchVectorStore
from .pgvectorSearch import PGVectorSearchComponent
from .MyCustomSearch import MyCustomSearchComponent  # Add your custom component here

__all__ = [
    "AstraDBSearchComponent",
    "ChromaSearchComponent",
    "FAISSSearchComponent",
    "MongoDBAtlasSearchComponent",
    "PineconeSearchComponent",
    "QdrantSearchComponent",
    "RedisSearchComponent",
    "SupabaseSearchComponent",
    "VectaraSearchComponent",
    "WeaviateSearchVectorStore",
    "PGVectorSearchComponent",
    "MyCustomSearchComponent",  # Add your custom component here
]

这将使您的自定义搜索组件在Langflow 2(https://github.com/logspace-ai/langflow/blob/dev/src/backend/base/langflow/components/vectorsearch/init.py)中可用。

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