Add type="module" inside the script tag

When working with ECMAScript modules and JavaScript module import statements in the browser, you'll need to explicitly tell the browser that a script is module. To do this, you have to add type="module" onto any ‹script› tags that point to a JavaScript module. Once you do this you can import that module without issues.

<script type="module" src="./index.js"></script>

If you are working on Node.js or react applications and using import statements instead of require to load the modules, then ensure your package.json has a property "type": "module" as shown below.

{
  // ...
  "type": "module",
  // ...
}

yarn run v1.22.5
$ node dist/cli.mjs
(node:3448) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use node --trace-warnings ... to show where the warning was created)
/root/xen-orchestra/packages/xo-server/dist/xapi/mixins/index.js:2
import _gpu, * as __gpu from "./gpu";
^^^^^^

SyntaxError: Cannot use import statement outside a module
etc...

The yarn build command produces those files (there is something wrong somewhere, why does the build produces index.js when there is the index.mjs?)

So

1. delete /packages/xo-server/dist/xapi/mixins/index.js (rm index.js)
2. delete /packages/xo-server/dist/xapi/mixins/index.js.map (rm index.js.map)
3. remove the import and export statements referencing index.js from file /packages/xo-server/dist/xapi/mixins/index.mjs (nano index.mjs)

and did the same as above for /packages/xo-server/dist/api/index.js
and same for /packages/xo-server/dist/xo-mixins/index.js

And then yarn start and it starts and orchestra is fine as far as I can see.

Not sure if that's the best but it got me going . Hope this helps someone.

edit: as usual, double check you are on latest commit from master.

root@xenorchestra:/opt/xen-orchestra/packages/xo-server# yarn start
yarn run v1.22.5
$ node dist/cli.mjs
(node:3490) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
/opt/xen-orchestra/packages/xo-server/dist/xapi/mixins/index.js:2
import _gpu, * as __gpu from "./gpu";
^^^^^^

SyntaxError: Cannot use import statement outside a module
    at wrapSafe (internal/modules/cjs/loader.js:984:16)
    at Module._compile (internal/modules/cjs/loader.js:1032:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1097:10)
    at Module.load (internal/modules/cjs/loader.js:933:32)
    at Function.Module._load (internal/modules/cjs/loader.js:774:14)
    at ModuleWrap.<anonymous> (internal/modules/esm/translators.js:199:29)
    at ModuleJob.run (internal/modules/esm/module_job.js:152:23)
    at async Loader.import (internal/modules/esm/loader.js:177:24)
    at async Object.loadESM (internal/process/esm_loader.js:68:5)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.