java.lang.String cannot be cast to com.google.appinventor.components.runtime.util.YailDictionary

MIT App Inventor Help
,
21

(post deleted by author)

22
23

image
image714×740 49.5 KB

Sorry, I accidentally leaked the API key in my previous message.

24

image
image786×330 20.6 KB

25

Our collection of web service APIs:

Avoid those trailing ...s in your blocks by JOINing short blocks.
That way we can see if they are legal JSON.

26

I have an idea lol: what if I send you the app file and you guys work your magic? That would be amazing, honestly haha.

Clyborg.aia (1.3 MB)

27

Are you sure the url in post 11 is correct?

In the docs it seems the url is https://generativelanguage.googleapis.com/v1beta/models/gemini-3-flash-preview:generateContent

Making a POST call to the above url works, ( while a GET appending ?api=APIKEY does not ), using the REST example in the doc linked above

28

So, how should the link look? I'm trying a few different ways to replace the URL you provided lol

29

The example shows ( so a POST with 2 headers ):

curl "https://generativelanguage.googleapis.com/v1beta/models/gemini-3-flash-preview:generateContent" \
  -H "x-goog-api-key: $GEMINI_API_KEY" \
  -H 'Content-Type: application/json' \
  -X POST \
  -d '{
    "contents": [
      {
        "parts": [
          {
            "text": "Explain how AI works in a few words"
          }
        ]
      }
    ]
  }'
30

There you go
As suspected earlier

Taifun
PS: and it would be nice if

31

Could you guide me using drawings or diagrams, please? I don't really get it yet. :frowning:

32

Another example of a request header see here App Inventor Tutorials and Examples: Dropbox | Pura Vida Apps

Just add your API key to the header according to the documentation

x-goog-api-key
APIKEY

See also

Taifun

33

This example works for me ( I used “rester” an extension of firefox as a quick check ):

gem01.aia (2.8 KB)

P.S.

The reply is a json object so you have “to dig” what you need

P.P.S.

Question: what is the AI model name you are using?

Reply: I am a large language model, trained by Google

Question: is your model name called gemini-3-flash-preview?

Reply: I am a large language model, trained by Google.As of now google has not released a model called gemini 3. The current version of gemini models include gemini 1.0 and 1.5

35

image
image1323×449 34.5 KB

Alright?

36

Does it work for you?

In the example posted above, I used a “list of lists” as shown in the requestheaders block hint ( maybe the dictionary is a list of lists ).

Also noted that your api key start with “$Alza”, mine starts with “Alza”, so double check the “$” is ok

P.S.

Also in the example of @Taifun he used a “list of lists”

37

Maybe it's the Gemini version I'm using, but I'm not sure which one is in the API. Where can I see in Google Cloud which Gemini API version I'm using?

38

You specify the model in the url, is the part after “v1beta/models/”

39

image
image1159×615 42.4 KB

I'm not sure if this is relevant, but when I click to get the phrase, it shows me that message. That's actually the fallback message I set for when no data is received. I'm not sure if it has anything to do with the main issue

This is the .aia file

Clyborgv22 (1).aia (1.3 MB)

40

I tried my API key with the .aia file you sent me, and it's still not working. I'm getting the same error, just so you know.