Short description of current behavior

description:
I'm trying to create a knowledgebase using embedding model with ollama nomic-embed-text, it failed , as : "Problem with embedding model config: 'str' object has no attribute 'get'.
conditions:
1)knowledge base create sql: CREATE KNOWLEDGE_BASE my_file_kb
USING
-- 使用 Ollama 作为 embedding 模型
embedding_model = {
"provider": "ollama",
"model_name": "nomic-embed-text",
"base_url": "http://localhost:11434" //first try: error occurs "Problem with embedding model config: 'str' object has no attribute 'get'."
"base_url": "http://localhost:11434/v1" //second try: error occurs "'FileHandler' object has no attribute 'create_table'"

},
storage = files.test_knowledge1,
metadata_columns = ['category'],
content_columns = ['content'],
id_column = 'id';

2. ollama and nomic-embed-text already installed in my host and checked;

3. first try: mindsdb-exception: mindsdb server, raise a exception as following; it seems the url of ollama isnot correct,
   2025-11-19 15:06:48,791 http INFO httpx: HTTP Request: POST http://localhost:11434/embeddings "HTTP/1.1 404 Not Found"
   2025-11-19 15:06:48,792 http ERROR mindsdb.api.http.namespaces.sql: Error query processing:
   Traceback (most recent call last):
   File "D:\workspace\mindsdb\mindsdb\integrations\handlers\openai_handler\helpers.py", line 78, in wrapper
   return func(*args, **kwargs)
   ^^^^^^^^^^^^^^^^^^^^^
   File "D:\workspace\mindsdb\mindsdb\interfaces\knowledge_base\llm_client.py", line 79, in embeddings
   response = self.client.embeddings.create(
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "d:\workspace\mindsdb.venv\Lib\site-packages\openai\resources\embeddings.py", line 132, in create
   return self._post(
   ^^^^^^^^^^^
   File "d:\workspace\mindsdb.venv\Lib\site-packages\openai_base_client.py", line 1259, in post
   return cast(ResponseT, self.request(cast_to, opts, stream=stream, stream_cls=stream_cls))
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   File "d:\workspace\mindsdb.venv\Lib\site-packages\openai_base_client.py", line 1047, in request
   raise self._make_status_error_from_response(err.response) from None
   openai.NotFoundError: 404 page not found

4） second try: base_url": "http://localhost:11434/v1" (this is the ollama's base url) but another error occurs:
2025-11-19 15:26:35,461 http ERROR mindsdb.api.http.namespaces.sql: Error query processing:
Traceback (most recent call last):
File "D:\workspace\mindsdb\mindsdb\api\http\namespaces\sql.py", line 54, in post
result: SQLAnswer = mysql_proxy.process_query(query)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\workspace\mindsdb\mindsdb\utilities\profiler\profiler.py", line 141, in wrapper
result = function(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\workspace\mindsdb\mindsdb\api\mysql\mysql_proxy\mysql_proxy.py", line 501, in process_query
executor.query_execute(sql)
File "D:\workspace\mindsdb\mindsdb\utilities\profiler\profiler.py", line 141, in wrapper
result = function(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\workspace\mindsdb\mindsdb\api\mysql\mysql_proxy\executor\mysql_executor.py", line 80, in query_execute
self.do_execute()
File "D:\workspace\mindsdb\mindsdb\utilities\profiler\profiler.py", line 141, in wrapper
result = function(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\workspace\mindsdb\mindsdb\api\mysql\mysql_proxy\executor\mysql_executor.py", line 106, in do_execute
executor_answer: ExecuteAnswer = self.command_executor.execute_command(self.query)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\workspace\mindsdb\mindsdb\utilities\profiler\profiler.py", line 141, in wrapper
result = function(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\workspace\mindsdb\mindsdb\api\executor\command_executor.py", line 660, in execute_command
return self.answer_create_kb(statement, database_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\workspace\mindsdb\mindsdb\api\executor\command_executor.py", line 1424, in answer_create_kb
_ = self.session.kb_controller.add(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\workspace\mindsdb\mindsdb\interfaces\knowledge_base\controller.py", line 1234, in add
vector_store_handler.create_table(vector_table_name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'FileHandler' object has no attribute 'create_table'

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Expected behavior

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How to reproduce the error

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