mistral-ai
#10144
role_assignment_error
Expected the last role to be user but received a different role. Ensure proper role assignment in your configuration.
This error has been identified and solved.
Reason
The error you are encountering, specifically the 400 status code with the message "Expected last role to be user but got RoleEnum.system," indicates a few possible issues related to the configuration and usage of the Mistral AI API:
Invalid Role Specification
The error suggests that the API expects the last role in the request to be either 'User' or 'Tool' (or 'Assistant' with a specific prefix), but it received a 'System' role instead. This mismatch can occur if the roles in your request are not correctly specified or if the sequence of roles does not align with the API's expectations.
Request Syntax and Configuration
The 400 status code generally indicates a "Bad Request," meaning the server could not understand the request due to invalid syntax or configuration. This could be due to incorrect or missing parameters, headers, or other parts of the request that do not conform to the API's requirements.
API Endpoint and Parameter Compatibility
The error might also be related to using incompatible parameters or not setting the correct configuration for the API endpoint. For example, issues like extra parameters not being allowed unless specified otherwise can trigger a 400 error.
In summary, the error is likely due to a misconfiguration in the roles specified in the request or other request parameters that do not match the expected syntax and requirements of the Mistral AI API.
Solution
To fix the 400 status error in the Mistral AI API, you need to ensure the following:
Verify that the last role in your request is correctly set to either 'user', 'assistant', or 'tool', as the API expects.
Check the sequence of roles in your request to ensure it aligns with the API's expectations.
Review the request syntax and configuration to ensure all parameters and headers are correctly specified and conform to the API's requirements.
Ensure that only allowed parameters are included in the request and that no extra parameters are present unless specified by the API.
Here are some key steps to follow:
Correctly specify the role fields in the message payload.
Ensure the API endpoint and parameters are compatible with the request.
Remove any unnecessary or disallowed parameters from the request.
Double-check the API documentation for any specific requirements or constraints.
