fix: Error handling in loading components/features in Agent Component

[edwinjosechittilappilly]

This pull request introduces logging and error handling improvements to the AgentComponent in the langflow package. The changes include adding logging for debugging purposes and handling exceptions more gracefully.

Key changes include:

Logging and Error Handling Improvements:

• Added import statements for the logging module and logger from langflow.logging to the agent.py file. [1] [2]
• Wrapped the retrieval of the language model in a try block and added logging for errors.
• Wrapped the retrieval of chat history in a try block and added logging for errors.
• Wrapped the addition of the current date tool in a try block and added logging for errors, changing the raised exception type from ValueError to TypeError.
• Wrapped the setup of the agent in a try block and added logging for errors.

[codspeed-hq]

CodSpeed Performance Report

Merging #5320 will improve performances by 10.44%

_{Comparing fix-errorhandling-agents-tools (2ba0ba3) with main (c3f36b6)}

Summary

⚡ 1 improvements
✅ 14 untouched benchmarks

Benchmarks breakdown

	Benchmark	main	fix-errorhandling-agents-tools	Change
⚡	test_get_and_cache_all_types_dict	1.1 ms	1 ms	+10.44%

Copilot reviewed 1 out of 8 changed files in this pull request and generated no comments.

Files not reviewed (7)

• src/backend/base/langflow/initial_setup/starter_projects/Instagram Copywriter.json: Language not supported
• src/backend/base/langflow/initial_setup/starter_projects/Market Research.json: Language not supported
• src/backend/base/langflow/initial_setup/starter_projects/Research Agent.json: Language not supported
• src/backend/base/langflow/initial_setup/starter_projects/SaaS Pricing.json: Language not supported
• src/backend/base/langflow/initial_setup/starter_projects/Sequential Tasks Agents .json: Language not supported
• src/backend/base/langflow/initial_setup/starter_projects/Simple Agent.json: Language not supported
• src/backend/base/langflow/initial_setup/starter_projects/Travel Planning Agents.json: Language not supported

Comments suppressed due to low confidence (1)

src/backend/base/langflow/components/agents/agent.py:28

• The error message should include the exception message for better debugging. Suggested change: msg = f"Error building {self.agent_llm} language model: {e}"

msg = f"Error building {self.agent_llm} language model"