'IServiceCollection' does not contain a definition for 'AddOllamaClientApi'

[davidfowl]

Discussed in #803

^{Originally posted by aalmada August 23, 2025}
Sorry but I'm already feeling stupid with this one. I already tried so many things...

I added Ollama hosting to my App Host. No issues there. Downloads the model successfuly.

I now want to use the OllamaSharp in my ApiService. I followed the documentation:

• Added package reference to CommunityToolkit.Aspire.OllamaSharp
• Added the builder.Services.AddOllamaClientApi("ollama") to Program.cs.

I keep getting the compilation error: 'IServiceCollection' does not contain a definition for 'AddOllamaClientApi'.

I'm using:

• .NET 10 Preview 7
• Aspire 9.4.1

[davidfowl]

We need to update the README https://github.com/CommunityToolkit/Aspire/blob/main/src/CommunityToolkit.Aspire.OllamaSharp/README.md#example-usage