1st time SP-Framework, yeoman generator creates error while scaffolding

Hi there,

 

I want to deep dive into development with SP framework and I just setup my dev environment. While creating the first project with yeoman, many warnings (because of deprecated packages) and an error occurs. yeoman process never finishes.

How can I fix this? Thanks a lot in advance!

 

This is the last output:

 

 

WARN tar ENOENT: no such file or directory, open '/Users/selsner/source/sp_framework/hello/node_modules/.staging/@microsoft/sp-webpart-workbench-1c0b2054/dist/1.toolbox_7007eb6cf2cefb719a42.js'
events.js:165
      throw er; // Unhandled 'error' event
      ^

Error [ERR_STREAM_WRITE_AFTER_END]: write after end
    at writeAfterEnd (_stream_writable.js:241:12)
    at PassThrough.Writable.write (_stream_writable.js:291:5)
    at PassThrough.Writable.end (_stream_writable.js:576:10)
    at ReadEntry.entry.on (/usr/local/lib/node_modules/npm/node_modules/pacote/lib/extract-stream.js:19:41)
    at ReadEntry.emit (events.js:185:15)
    at ReadEntry.emit (/usr/local/lib/node_modules/npm/node_modules/tar/node_modules/minipass/index.js:287:25)
    at ReadEntry.[maybeEmitEnd] (/usr/local/lib/node_modules/npm/node_modules/tar/node_modules/minipass/index.js:240:12)
    at ReadEntry.end (/usr/local/lib/node_modules/npm/node_modules/tar/node_modules/minipass/index.js:153:27)
    at Unpack.[consumeBody] (/usr/local/lib/node_modules/npm/node_modules/tar/lib/parse.js:210:13)
    at Unpack.[consumeChunkSub] (/usr/local/lib/node_modules/npm/node_modules/tar/lib/parse.js:391:40)
    at Unpack.[consumeChunk] (/usr/local/lib/node_modules/npm/node_modules/tar/lib/parse.js:362:30)
    at Unzip.(anonymous function).on.chunk (/usr/local/lib/node_modules/npm/node_modules/tar/lib/parse.js:291:59)
    at Unzip.emit (events.js:180:13)
    at Unzip.emit (/usr/local/lib/node_modules/npm/node_modules/tar/node_modules/minipass/index.js:287:25)
    at Unzip.write (/usr/local/lib/node_modules/npm/node_modules/tar/node_modules/minipass/index.js:90:17)
    at Unzip.write (/usr/local/lib/node_modules/npm/node_modules/tar/node_modules/minizlib/index.js:284:29)
Emitted 'error' event at:
    at writeAfterEnd (_stream_writable.js:243:10)
    at PassThrough.Writable.write (_stream_writable.js:291:5)
    [... lines matching original stack trace ...]
    at Unzip.write (/usr/local/lib/node_modules/npm/node_modules/tar/node_modules/minizlib/index.js:284:29)