ES module version of NPM package incomplete

[uoc-kpf]

Hi, I'm getting the following error message when I try to build the package.

npm run build

> build
> vite build

vite v4.5.3 building for production...
✓ 1 modules transformed.
✓ built in 91ms
[commonjs--resolver] Failed to resolve entry for package "@maptiler/leaflet-maptilersdk". The package may have incorrect main/module/exports specified in its package.json.
error during build:
Error: Failed to resolve entry for package "@maptiler/leaflet-maptilersdk". The package may have incorrect main/module/exports specified in its package.json.
    at packageEntryFailure (file:///var/www/locations/node_modules/vite/dist/node/chunks/dep-41cf5ffd.js:28725:11)
    at resolvePackageEntry (file:///var/www/locations/node_modules/vite/dist/node/chunks/dep-41cf5ffd.js:28722:5)
    at tryNodeResolve (file:///var/www/locations/node_modules/vite/dist/node/chunks/dep-41cf5ffd.js:28453:20)
    at Object.resolveId (file:///var/www/locations/node_modules/vite/dist/node/chunks/dep-41cf5ffd.js:28212:28)
    at file:///var/www/gdar-locations/node_modules/rollup/dist/es/shared/node-entry.js:25544:40
    at async PluginDriver.hookFirstAndGetPlugin (file:///var/www/locations/node_modules/rollup/dist/es/shared/node-entry.js:25444:28)
    at async resolveId (file:///var/www/locations/node_modules/rollup/dist/es/shared/node-entry.js:24117:26)
    at async ModuleLoader.resolveId (file:///var/www/locations/node_modules/rollup/dist/es/shared/node-entry.js:24531:15)
    at async Object.resolveId (file:///var/www/locations/node_modules/vite/dist/node/chunks/dep-41cf5ffd.js:7910:10)
    at async PluginDriver.hookFirstAndGetPlugin (file:///var/www/locations/node_modules/rollup/dist/es/shared/node-entry.js:25444:28)

It looks like the dist directory is missing from node_modules/@maptiler/leaflet-maptilersdk.