OpenProject install fails

openproject
ucs-4-4

#1

Hello,
trying to install openproject on my testlab running ucs 4.4, running into error everytime.
After intense searching in logs I found some errors about npm in there:

npm ERR! code E418
npm ERR! 418 I’am a teapot: @angular/cdk@^7.2.2
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! Exit status 1

(Some additional lines with comments not copied here)

After this error, openproject install is rolled back.
Any advice here on how to solve this?

Thank you.