System.Text.Json.JsonException
  HResult=0x80131500
  Message=The JSON value could not be converted to System.Nullable`1[System.Single]. Path: $.temperature | LineNumber: 0 | BytePositionInLine: 86.
  Source=System.Text.Json
  StackTrace:
   at System.Text.Json.ThrowHelper.ReThrowWithPath(ReadStack& state, Utf8JsonReader& reader, Exception ex)
   at System.Text.Json.Serialization.JsonConverter`1.ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
   at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan`1 utf8Json, JsonTypeInfo`1 jsonTypeInfo, Nullable`1 actualByteCount)
   at System.Text.Json.JsonSerializer.ReadFromSpan[TValue](ReadOnlySpan`1 json, JsonTypeInfo`1 jsonTypeInfo)
   at System.Text.Json.JsonSerializer.Deserialize[TValue](String json, JsonSerializerOptions options)
   at Microsoft.SemanticKernel.Connectors.Ollama.OllamaPromptExecutionSettings.FromExecutionSettings(PromptExecutionSettings executionSettings)
   at Microsoft.SemanticKernel.Connectors.Ollama.OllamaChatCompletionService.<GetChatMessageContentsAsync>d__5.MoveNext()
   at Microsoft.SemanticKernel.KernelFunctionFromPrompt.<GetChatCompletionResultAsync>d__20.MoveNext()
   at Microsoft.SemanticKernel.KernelFunctionFromPrompt.<InvokeCoreAsync>d__3.MoveNext()
   at System.Threading.Tasks.ValueTask`1.get_Result()
   at Microsoft.SemanticKernel.KernelFunction.<>c__DisplayClass21_0.<<InvokeAsync>b__0>d.MoveNext()
   at Microsoft.SemanticKernel.Kernel.<InvokeFilterOrFunctionAsync>d__34.MoveNext()
   at Microsoft.SemanticKernel.Kernel.<OnFunctionInvocationAsync>d__33.MoveNext()
   at Microsoft.SemanticKernel.KernelFunction.<InvokeAsync>d__21.MoveNext()
   at Program.<<<Main>$>g__InvokePrompt4|0_3>d.MoveNext() in ...
   at Program.<<Main>$>d__0.MoveNext() in ...
   at Program.<Main>(String[] args)

  This exception was originally thrown at this call stack:
    System.Text.Json.ThrowHelper.ThrowInvalidOperationException_ExpectedNumber(System.Text.Json.JsonTokenType)
    System.Text.Json.Utf8JsonReader.TryGetSingle(out float)
    System.Text.Json.Utf8JsonReader.GetSingle()
    System.Text.Json.Serialization.Converters.NullableConverter<T>.Read(ref System.Text.Json.Utf8JsonReader, System.Type, System.Text.Json.JsonSerializerOptions)
    System.Text.Json.Serialization.Metadata.JsonPropertyInfo<T>.ReadJsonAndSetMember(object, ref System.Text.Json.ReadStack, ref System.Text.Json.Utf8JsonReader)
    System.Text.Json.Serialization.Converters.ObjectDefaultConverter<T>.OnTryRead(ref System.Text.Json.Utf8JsonReader, System.Type, System.Text.Json.JsonSerializerOptions, ref System.Text.Json.ReadStack, out T)
    System.Text.Json.Serialization.JsonConverter<T>.TryRead(ref System.Text.Json.Utf8JsonReader, System.Type, System.Text.Json.JsonSerializerOptions, ref System.Text.Json.ReadStack, out T, out bool)
    System.Text.Json.Serialization.JsonConverter<T>.ReadCore(ref System.Text.Json.Utf8JsonReader, System.Text.Json.JsonSerializerOptions, ref System.Text.Json.ReadStack)

Inner Exception 1:
InvalidOperationException: Cannot get the value of a token type 'String' as a number.