installation Symfony Encore

[pdaehnert]

Hi,
im using symfony with encore web-bundle

installing it via npm failed

1. require('rainbow-code/src/rainbow-node) required the file mentioned in the package.json
   by compiling the assets (npm run dev) i got
   0 verbose cli [ '/usr/bin/node', '/usr/local/bin/npm', 'run', 'dev' ]
   1 info using npm@7.5.4
   2 info using node@v10.19.0
   3 timing config:load:defaults Completed in 1ms
   4 timing config:load:file:/usr/local/lib/node_modules/npm/npmrc Completed in 2ms
   5 timing config:load:builtin Completed in 2ms
   6 timing config:load:cli Completed in 3ms
   7 timing config:load:env Completed in 0ms
   8 timing config:load:file:/var/www/html/symfony/.npmrc Completed in 0ms
   9 timing config:load:project Completed in 1ms
   10 timing config:load:file:/home/pdaehnert/.npmrc Completed in 0ms
   11 timing config:load:user Completed in 0ms
   12 timing config:load:file:/etc/npmrc Completed in 0ms
   13 timing config:load:global Completed in 0ms
   14 timing config:load:cafile Completed in 0ms
   15 timing config:load:validate Completed in 0ms
   16 timing config:load:setUserAgent Completed in 0ms
   17 timing config:load:setEnvs Completed in 1ms
   18 timing config:load Completed in 9ms
   19 verbose npm-session 0f122c6ff30fceab
   20 timing npm:load Completed in 17ms
   21 timing command:run-script Completed in 8727ms
   22 verbose stack Error: command failed
   22 verbose stack at ChildProcess.proc.on (/usr/local/lib/node_modules/npm/node_modules/@npmcli/promise-spawn/index.js:64:27)
   22 verbose stack at ChildProcess.emit (events.js:198:13)
   22 verbose stack at maybeClose (internal/child_process.js:982:16)
   22 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
   23 verbose cwd /var/www/html/symfony
   24 verbose Linux 5.8.0-44-generic
   25 verbose argv "/usr/bin/node" "/usr/local/bin/npm" "run" "dev"
   26 verbose node v10.19.0
   27 verbose npm v7.5.4
   28 error code 1

so then i tried to call all the required files manually

require('rainbow-code/src/rainbow');
require('rainbow-code/src/language/generic');
require('rainbow-code/src/language/php');
require('rainbow-code/themes/css/rainbow.css');

i could compile but in the browser i get the message:

Uncaught ReferenceError: Rainbow is not defined
js generic.js:6
Webpack 22

any idea whats going on here?