windmill-labs/windmill · warning

Failed to compute shared UI diff for dry-run preview: ${e}

Error message

Failed to compute shared UI diff for dry-run preview: ${e}

What it means

During `wmill sync push --dry-run`, the CLI attempts to compute a UI diff for the shared UI folder so the preview shows shared-UI changes alongside file changes. This is wrapped in a catch that downgrades any failure to a log.warn because the shared-UI diff is purely supplemental — the dry-run of the main fileset still completes. The thrown value `e` is interpolated into the message.

Source

Thrown at cli/src/commands/sync/sync.ts:5318

      for (const c of await diffSharedUi(
        workspace.workspaceId,
        opts.keepDeleted,
      )) {
        if (c.type === "added") {
          changes.push({ name: "added", path: c.path, content: "" });
        } else if (c.type === "deleted") {
          changes.push({ name: "deleted", path: c.path });
        } else {
          changes.push({
            name: "edited",
            path: c.path,
            before: c.before,
            after: c.after,
          });
        }
      }
    } catch (e) {
      log.warn(`Failed to compute shared UI diff for dry-run preview: ${e}`);
    }
  }

  log.info(
    `remote (${workspace.name}) <- local: ${changes.length} changes to apply`,
  );
  // Check that every folder referenced in the changeset has a local folder.meta.yaml
  const missingFolders: string[] = [];
  if (changes.length > 0) {
    const folderNames = new Set<string>();
    for (const change of changes) {
      const parts = change.path.split(SEP);
      if (parts.length >= 3 && parts[0] === "f" && change.name !== "deleted") {
        folderNames.add(parts[1]);
      }
    }
    for (const folderName of folderNames) {
      const basePath = path.join("f", folderName, "folder.meta.yaml");

View on GitHub (pinned to e474e8803c)

Solutions

1. Check the interpolated error `e` in the warning to see the root cause (usually an HTTP status or network error).
2. Verify the API token/workspace has access to the shared UI folder (retry with an admin token).
3. Ignore if shared UI diff is irrelevant to you — the dry-run preview of regular files is still produced.
4. Upgrade the CLI/server if the shared UI endpoints are missing on your server version.

Example fix

// The failure is already handled; if you want the dry run to fail loudly on shared UI errors:
// before (library code)
} catch (e) {
  log.warn(`Failed to compute shared UI diff for dry-run preview: ${e}`);
}
// after
} catch (e) {
  log.error(`Failed to compute shared UI diff for dry-run preview: ${e}`);
  process.exit(1);
}

// Before dry-run, check shared UI access:
const folders = await wmill.listFolders({ workspace });
// ensure the shared UI folder exists and the token can read it; otherwise skip the shared-UI diff

function isHttpError(e: unknown): e is { statusCode: number; message: string } {
  return typeof e === 'object' && e !== null && 'statusCode' in e;
}

try {
  await computeSharedUiDiff();
} catch (e) {
  log.warn(`Skipping shared UI diff (non-fatal): ${e instanceof Error ? e.message : e}`);
}

When it happens

Trigger: Running `wmill sync push --dry-run` on a workspace whose shared UI folder diff computation fails — e.g. the remote shared UI folder cannot be listed (network error, 4xx/5xx from the API, permission denied on the folder) or local shared UI files fail to parse.

Common situations: Token lacking read access to the shared UI folder; server unreachable mid-dry-run; malformed shared UI files locally; older server version without the shared UI endpoints.

Related errors

• ⚠ ${syncPushDestructiveWarning(opts.keepDeleted)}
• Failed to push shared UI folder: ${e}
• Workspace folder not found, are you in the right directory?
• Not a fileset resource path: ${changePath}
• No resource metadata file found for fileset resource: ${chan

AI-assisted analysis of windmill-labs/windmill@e474e8803c (2026-09-03). Data as JSON: /api/errors/ba5ea710b9e2a35d. Report an issue: GitHub.