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Gemini Error Checker Find your next useful check

Use the Gemini Error Checker for error 1155, “Something went wrong”, failed messages and file uploads. Compare results, inspect attachments locally, and find a practical next step.

CheckToolkit

Start the Gemini Error Checker

Choose what went wrong. The guide uses tests you carry out in Gemini; it cannot access your account or verify a Google outage.

Start the Gemini Error Checker

Something went wrong (1155)

Progress saved in this browser for up to 7 days. Files and filenames are not saved.

Checks you completed

    Your answers will appear here.

      Open Gemini to run a check ↗
      Gemini Error Checker: local attachment precheck

      Optional. Select the files you intend to attach in one prompt. This reads sizes, names and a small header locally; it does not upload them to Gemini.

      For standard Gemini Apps uploads, not the Gemini API or Import Code. Format support, ZIP contents, account quotas and successful analysis are not verified.

      Only answer choices are saved. Files stay in this tab and must be reselected after a reload.

      Reference: up to 10 files (subject to availability), 100 MB per non-video file and 2 GB per video. This precheck uses decimal MB/GB conservatively.

        Enter the total yourself, including every selected media file. Duration is not read automatically. Blank means unchecked.

          Your troubleshooting report

          The report excludes filenames and file contents. Review it before sharing.

          Download report

          Gemini Error Checker sources and limits

          Independent CheckToolkit tool, not affiliated with Google. Suggestions are a troubleshooting method, not an official definition of an error code.

          Reference rules checked: October 12, 2026

          Google’s feedback flow can include the associated conversation. Review the content before submitting.

          Read the Gemini 1155 guide →

          What the Gemini Error Checker helps you separate

          A focused workflow from the symptom to a useful record. Illustrations show example checks, not live service results.

          Follow the evidence one check at a time

          The Gemini Error Checker asks for simple comparisons. A successful new conversation, browser or account changes the next step; an untested step stays unknown.

          Start the guided checks
          Illustration of an error 1155 checklist with chat, browser and network branches

          Keep attachment measurements separate

          The Gemini Error Checker measures file sizes locally and flags familiar header mismatches. It keeps media duration, archive contents and account restrictions visible as separate checks.

          Inspect your attachments
          Illustration of a local PDF and video attachment precheck with size and duration results

          Leave with a useful troubleshooting record

          The Gemini Error Checker collects your answers and next actions into a report. Copy or download it without including filenames, file contents or Google account details.

          Build your report
          Illustration of user-reported checks and next steps in a troubleshooting report

          Gemini Error Checker features

          Useful checks with clear boundaries.

          Error 1155 entry point

          Start with the reported symptom, then test what still works. No unsupported promise that 1155 always has one cause.

          Resume your checks

          The Gemini Error Checker keeps answers in your browser for seven days. Start over clears progress; files are never stored.

          Share a clean starting point

          Share a Gemini Error Checker scenario without sending answers or attachments. A colleague runs their own checks.

          How to use the Gemini Error Checker

          Keep your tests small and change one variable at a time.

          01

          Start with a minimal example

          The Gemini Error Checker begins with the symptom. Save unsent work and test a short prompt in a new conversation before changing settings.

          • Keep the same model where possible
          • Do not delete your original chat
          02

          Record what actually works

          In the Gemini Error Checker, record browser, account and connection comparisons. Keep other variables the same and skip tests you cannot run.

          • A skipped check is not a failure
          • Results are based on your observations
          03

          Check files and keep the report

          Use the Gemini Error Checker attachment panel for upload problems. Review size warnings, enter media duration, then copy your report if you need further help.

          Open the 1155 guide

          Gemini Error Checker questions

          What the results can and cannot tell you.

          Does error 1155 mean that my VPN is the problem?

          Not necessarily. Gemini community reports describe different circumstances, including reports without a VPN. The Gemini Error Checker compares outcomes and does not treat an error number as proof of one cause.

          Can the Gemini Error Checker confirm a Google outage?

          No. It does not query Google’s internal service status or access your account. Failures across several comparisons leave a service issue possible, not confirmed.

          What does the attachment check measure?

          The Gemini Error Checker reads file size and a small header in your browser. It flags common extension mismatches and compares sizes with the linked upload guidance. Media duration is entered by you; ZIP contents, quotas and upload acceptance are not verified.

          What is saved when I leave the page?

          The Gemini Error Checker saves only scenario and answer choices locally for up to seven days. Files, filenames and duration inputs are not saved. Start over clears stored answers; scenario links include none.

          Can I use these limits for Gemini API requests?

          No. This Gemini Error Checker targets the consumer Gemini Apps upload workflow. API requests, Import Code and managed accounts can have different requirements. Follow the documentation for the product you use.

          What if every check still fails?

          Save your work and stop repeating disruptive changes. The Gemini Error Checker report helps you record the tests you tried. Review recent reports and send feedback through Gemini if the issue persists.

          Use the Gemini Error Checker to choose your next step

          Use the Gemini Error Checker to keep your work, test one difference at a time and save a useful record.

          Start Gemini Error Checker Read the 1155 guide

          Independent guidance. No Google sign-in, API key or file upload required.