Update +llms/+utils/errorMessageCatalog.m

Co-authored-by: Christopher Creutzig <[email protected]>

Author: MiriamScharnke

+llms/+utils/errorMessageCatalog.m

@@ -46,7 +46,7 @@
 catalog("llms:endpointMustBeSpecified") = "Unable to find endpoint. Either set environment variable AZURE_OPENAI_ENDPOINT or specify name-value argument ""Endpoint"".";
 catalog("llms:deploymentMustBeSpecified") = "Unable to find deployment name. Either set environment variable AZURE_OPENAI_DEPLOYMENT or specify name-value argument ""Deployment"".";
 catalog("llms:keyMustBeSpecified") = "Unable to find API key. Either set environment variable {1} or specify name-value argument ""APIKey"".";
-catalog("llms:mustHaveMessages") = "Message must not be empty.";
+catalog("llms:mustHaveMessages") = "Message history must not be empty.";
 catalog("llms:mustSetFunctionsForCall") = "When no functions are defined, ToolChoice must not be specified.";
 catalog("llms:mustBeMessagesOrTxt") = "Message must be nonempty string, character array, or messageHistory object.";
 catalog("llms:invalidOptionAndValueForModel") = "'{1}' with value '{2}' is not supported for model ""{3}"".";