xtekky/gpt4free · error · ValueError

Unsupported file type: {filename}

Error message

Unsupported file type: {filename}

What it means

Error "Unsupported file type: {filename}" thrown in xtekky/gpt4free.

Source

Thrown at g4f/gui/server/backend_api.py:899

                            width, height = process_image(
                                image, save=os.path.join(thumbnail_dir, filename)
                            )
                            image_size = {"width": width, "height": height}
                        except UnidentifiedImageError:
                            pass
                        except Exception as e:
                            logger.exception(e)
                    if result:
                        media.append({"name": filename, "text": result, **image_size})
                    else:
                        media.append({"name": filename, **image_size})
                elif is_supported and not result:
                    newfile = os.path.join(bucket_dir, filename)
                    filenames.append(filename)
                else:
                    os.remove(copyfile)
                    if not result:
                        raise ValueError(f"Unsupported file type: {filename}")
                    continue
                try:
                    os.rename(copyfile, newfile)
                except OSError:
                    shutil.copyfile(copyfile, newfile)
                    os.remove(copyfile)
            with open(
                os.path.join(bucket_dir, "files.txt"), "w", encoding="utf-8"
            ) as f:
                for filename in filenames:
                    f.write(f"{filename}\n")
            return {"bucket_id": bucket_id, "files": filenames, "media": media}

        @app.route("/files/<bucket_id>/<file_type>/<filename>", methods=["GET"])
        def get_media(bucket_id, file_type: str, filename, dirname: str = None):
            if file_type not in ["media", "thumbnail"]:
                return jsonify({"error": {"message": "Invalid file type"}}), 400
            if file_type == "thumbnail":

View on GitHub (pinned to 973504e177)

Solutions

1. Upload a file with a supported extension.
2. Check the allowed file types in the backend API.

When it happens

Trigger: Thrown at g4f/gui/server/backend_api.py:899 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of xtekky/gpt4free@973504e177 (2026-08-14). Data as JSON: /api/errors/6654010e1a9b87ac. Report an issue: GitHub.