vercel/ai · error · AISDKError

GOOGLE_FILES_UPLOAD_ERROR

GOOGLE_FILES_UPLOAD_ERROR

Error message

Failed to initiate resumable upload: ${initResponse.status} ${errorBody}

What it means

Error "Failed to initiate resumable upload: ${initResponse.status} ${errorBody}" thrown in vercel/ai.

Source

Thrown at packages/google/src/google-files.ts:100

      method: 'POST',
      headers: {
        ...resolvedHeaders,
        'X-Goog-Upload-Protocol': 'resumable',
        'X-Goog-Upload-Command': 'start',
        'X-Goog-Upload-Header-Content-Length': String(fileBytes.length),
        'X-Goog-Upload-Header-Content-Type': mediaType,
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        file: {
          ...(displayName != null ? { display_name: displayName } : {}),
        },
      }),
    });

    if (!initResponse.ok) {
      const errorBody = await initResponse.text();
      throw new AISDKError({
        name: 'GOOGLE_FILES_UPLOAD_ERROR',
        message: `Failed to initiate resumable upload: ${initResponse.status} ${errorBody}`,
      });
    }

    const uploadUrl = initResponse.headers.get('x-goog-upload-url');
    if (!uploadUrl) {
      throw new AISDKError({
        name: 'GOOGLE_FILES_UPLOAD_ERROR',
        message: 'No upload URL returned from initiation request',
      });
    }

    const uploadResponse = await fetchFn(uploadUrl, {
      method: 'POST',
      headers: {
        'X-Goog-Upload-Offset': '0',
        'X-Goog-Upload-Command': 'upload, finalize',

View on GitHub (pinned to 69428b1f8b)

When it happens

Trigger: Thrown at packages/google/src/google-files.ts:100 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of vercel/ai@69428b1f8b (2026-08-30). Data as JSON: /api/errors/e23f6366fef8af2e. Report an issue: GitHub.