.Net: Semantic Kernel Exception when running TextMemory Plugin Sample

[AshD]

Describe the bug
Running TextMemory Plugin Sample
https://github.com/microsoft/semantic-kernel/blob/main/dotnet/samples/KernelSyntaxExamples/Example15_TextMemoryPlugin.cs

in PART 4: TextMemoryPlugin Recall in a Prompt Function throws
Microsoft.SemanticKernel.KernelException: 'A function named argument must contain a name and value separated by a '=' character.'

In line
var aboutMeOracle = kernel.CreateFunctionFromPrompt(RecallFunctionDefinition, new OpenAIPromptExecutionSettings() { MaxTokens = 100 });

Has the syntax for defining the Recall function changed? The below is the one from the sample.

            const string RecallFunctionDefinition = @"
Consider only the facts below when answering questions:

BEGIN FACTS
About me: {{recall='where did I grow up?'}}
About me: {{recall='where do I live now?'}}
END FACTS

Question: {{$input}}

Answer:
";

I am on dotnet 1.01 release and Kernel memory 1.0.1-alpha

Thanks,
Ash

[glahaye]

Looking at this...

[glahaye]

It turns out the CodeTokenizer routinely causes first-chance (caught) exceptions to determine whether tokens belong to function names of named argument blocks. This is inefficient but also can be startling depending on how one has set one's configuration for breaking on exceptions.

See PR #4471 for fix