Enhance Agent repository feedback & fix Tool auto-import (#2829)

* fix: fix tool auto-import from agent repository

* feat: enhance error message when agent is not found

src/crewai/utilities/agent_utils.py

@@ -441,6 +441,11 @@ def load_agent_from_repository(from_repository: str) -> Dict[str, Any]:
 
         client = PlusAPI(api_key=get_auth_token())
         response = client.get_agent(from_repository)
+        if response.status_code == 404:
+            raise AgentRepositoryError(
+                f"Agent {from_repository} does not exist, make sure the name is correct or the agent is available on your organization"
+            )
+
         if response.status_code != 200:
             raise AgentRepositoryError(
                 f"Agent {from_repository} could not be loaded: {response.text}"
@@ -450,14 +455,14 @@ def load_agent_from_repository(from_repository: str) -> Dict[str, Any]:
         for key, value in agent.items():
             if key == "tools":
                 attributes[key] = []
-                for tool_name in value:
+                for tool in value:
                     try:
                         module = importlib.import_module("crewai_tools")
-                        tool_class = getattr(module, tool_name)
+                        tool_class = getattr(module, tool["name"])
                         attributes[key].append(tool_class())
                     except Exception as e:
                         raise AgentRepositoryError(
-                            f"Tool {tool_name} could not be loaded: {e}"
+                            f"Tool {tool['name']} could not be loaded: {e}"
                         ) from e
             else:
                 attributes[key] = value