Install javascript kernel error

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1

Hi,
when i try to install the javascript kernel i get the following error:

root@a1c0018b56a8:~# npm install -g ijavascript
/opt/conda/bin/ijs -> /opt/conda/lib/node_modules/ijavascript/bin/ijavascript.js
/opt/conda/bin/ijsconsole -> /opt/conda/lib/node_modules/ijavascript/bin/ijsconsole.js
/opt/conda/bin/ijsinstall -> /opt/conda/lib/node_modules/ijavascript/bin/ijsinstall.js
/opt/conda/bin/ijskernel -> /opt/conda/lib/node_modules/ijavascript/lib/kernel.js
/opt/conda/bin/ijsnotebook -> /opt/conda/lib/node_modules/ijavascript/bin/ijsnotebook.js

> zeromq@4.6.0 install /opt/conda/lib/node_modules/ijavascript/node_modules/zeromq
> node scripts/prebuild-install.js || (node scripts/preinstall.js && node-gyp rebuild)


prebuild-install WARN install EACCES: permission denied, access '/home/jovyan/.npm'

fs.js:119
    throw err;
    ^

Error: EACCES: permission denied, mkdir '/opt/conda/lib/node_modules/ijavascript/node_modules/zeromq/zmq'
    at Object.mkdirSync (fs.js:773:3)
    at Object.<anonymous> (/opt/conda/lib/node_modules/ijavascript/node_modules/zeromq/scripts/preinstall.js:89:8)
    at Module._compile (internal/modules/cjs/loader.js:816:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:827:10)
    at Module.load (internal/modules/cjs/loader.js:685:32)
    at Function.Module._load (internal/modules/cjs/loader.js:620:12)
    at Function.Module.runMain (internal/modules/cjs/loader.js:877:12)
    at internal/main/run_main_module.js:21:11
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! zeromq@4.6.0 install: `node scripts/prebuild-install.js || (node scripts/preinstall.js && node-gyp rebuild)`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the zeromq@4.6.0 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/jovyan/.npm/_logs/2019-09-12T17_10_55_405Z-debug.log

is it possible to solve this somehow? to install the kernel i hada to uninstall nodejs and npm with conda and then install them with apt.