New Snag error....[GoogleGenerativeAI Error]

I have a snag error in the prototyper : (previous one was about the size, and the solution was described elsewhere)
now I have:

[GoogleGenerativeAI Error]: Error fetching from https://monospace-pa.googleapis.com/v1/models/gemini-2.5-pro-preview-03-25:streamGenerateContent?alt=sse: [400 Bad Request] Request contains an invalid argument.

I tried several things (including deleting the threat) , reset , /Clear etcetc

nothing helps…

Any clue ? because the protyper is useless now and I cannot continue my project ?

thanks

Hi @Edwin_Dingjan - this is a known issue. We are looking into this currently. Thanks for bearing with us as we work through this.

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Hi Kirupa, any progress? tested it this morning, still the same error. Can I do something ?

same issue here. I did the solutions proposed here, on this forum, but it didn’t work.

same here please help!

My project stopped now, because is doesn’t do anything. Who can help?

me neither…almost 1 week with stopped project.

Me too. My project has been on hold for almost a week.

Hi Kirupa

Any news? As i am only used the prototyper my whole project stopped now? What can i do?

Could you/do you want to use my workspace for debugging the error?

Same problem here. Any news?

Same problem. Project stuck now for a week. No updates from support.

What can we do?

Anyone?

Seems like Preview only has a limited number of AI tokens that do not reset. Once they’re exhausted you cant use the prototyper ai. Not sure if its per projects or in total. Anyone confirm?

Heads-up: After pruning all oversized context files and attempting to restart the workspace, I now see
“Setting up workspace. Whoops… we are experiencing increased load and are spinning up a new VM for you. This may take several minutes. Check back soon.”
> :red_exclamation_mark:So the token-limit issue is addressed, but Firebase Studio currently can’t allocate a VM. I’m still working on it; if I manage to bring the workspace back online, I’ll report the details in the forum. :red_exclamation_mark:


What has been done so far

  1. Initial error
    The Prototyper kept throwing
    400 Bad Request – input token count (≈2 221 755) exceeds max (1 048 575).
    That meant the combined size of every JSON context file in ~/.idx/ai/ was larger than the 1-MiB window of the default model (gemini-2.5-pro-preview).
  2. Size audit
    Using du -b ~/.idx/ai/*.json ~/.idx/ai/threads/*.json, I found one thread file at 1.7 MB—big enough to exceed the limit by itself.
  3. Pruning the culprit
  • Backed it up to ~/studio/context_backup/.
  • Used jq 'walk(if type=="array" and length>30 then .[-30:] else . end)' to keep only the last 30–50 messages.
  • Moved any .bak files out of ~/.idx/ai/threads/.
    After pruning, every JSON file was under 120 kB.
  1. Verification
    Re-running the du -b … | sort -nr check confirmed no file exceeded ~120 kB, comfortably beneath the 1-MiB cap.
  2. Restart attempt
    Closing/re-opening the Prototyper triggered a full workspace restart, and that’s when the high-load VM message appeared, blocking immediate access.
  3. Fallback/next steps
  • If the VM starts, I’ll test the Prototyper with a short prompt (ping).
  • If the issue persists, I can use ⋮ → Reset workspace to wipe all hidden context files in one shot.
  • Long-term, switching the blueprint to gemini-1.5-pro (2 M-token context) would provide more headroom—once Firebase Studio exposes that model.

I’ll keep trying to regain access and will post an update once I have a definitive fix.

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the snag error persists…=/

Grrr me too , allthough the error message changed.