Unable to compile with mermaid 11.4.1

[kevin-james-sp]

Description

Upgraded a project using mermaid 10.9.3 to mermaid 11.4.1. It then refused to compile with the following error:

node_modules/@antfu/utils/dist/index.d.ts:591:5 - error TS2416: Property 'then' in type 'PInstance<T>' is not assignable to the same property in base type 'Promise<Awaited<T>[]>'.
  Type '(fn?: () => PromiseLike<any>) => Promise<any>' is not assignable to type '<TResult1 = Awaited<T>[], TResult2 = never>(onfulfilled?: (value: Awaited<T>[]) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<...>) => Promise<...>'.
    Types of parameters 'fn' and 'onfulfilled' are incompatible.
      Target signature provides too few arguments. Expected 1 or more, but got 0.

591     then(fn?: () => PromiseLike<any>): Promise<any>;
        ~~~~

Unable to find the problem, I created a simple test case. Maybe I'm using the wrong version of something somewhere.

Steps to reproduce

Node v20.17.0
package.json

{
  "name": "mermaidtest",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "description": "",
  "dependencies": {
    "mermaid": "^11.4.1"
  },
  "type": "module",
  "devDependencies": {
    "@types/node": "^20.12.10",
    "ts-jest": "^29.2.5",
    "ts-node": "^10.9.2",
    "typescript": "^5.7.2"
  }
}

test.ts

import mermaid from "mermaid";

console.log('end');

After running npm i, Running npx tsc test.ts give the same error as above.

Screenshots

No response

Code Sample

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Setup

• Mermaid version:
• Browser and Version: [Chrome, Edge, Firefox]

Suggested Solutions

No response

Additional Context

No response

[kut]

I get the same in v11.4.0, but not when I downgrade to 10.9.3