"Node.js application" launcher doesn't expand launch variables (eg `${workspace_loc:/myProject/test.js}`)

Given a Generic Eclipse project my.project containing a file hello.js:

const http = require('http');

const hostname = '127.0.0.1';
const port = 3000;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World');
});

server.listen(port, hostname, () => {
  console.log(`Server running at http://${hostname}:${port}/`);
});

From Node.js getting started guide

The workspace looks like this:

---

I would like to start this using a “Node.js Application” launcher, but I am not able to configure it.

I always have this error Not allowed to read file., no matter the value I put in Program.

• node hello.js (with the Working directory set to ${workspace_loc:/my.project/})
• node ${workspace_loc:/my.project/hello.js}
• ${workspace_loc:/my.project/hello.js}
• ${workspaceFolder}/my.project/hello.js
• …

[mickaelistria]

Yes, the root issue is missing variable expansion. Having relative path to working directory would be good as well.

[mickaelistria]

I merged #807 that should fix that. However, the UI to suggest Variables in launch config is still missing; it’s tracked in #808 . I’m closing this one so you can leverage the fix in upcoming snapshot build. Please reopen with details if it’s not resolved.