Ionic installation error - too long file names

Hi, I installed many ionic apps wihtout any problem. Since yesterday I’m getting this one and can’t do anything.
Even copy a working ionic-folder ist not possible due to too long file names in windows.

npm-debug.log:

72036 silly gunzTarPerm modified mode [ 'node_modules/ionic-app-lib/node_modules/cordova-lib/node_modules/npm/node_modules/request/node_modules/aws-sign2/index.js',
72036 silly gunzTarPerm   420,
72036 silly gunzTarPerm   438 ]
72037 silly gunzTarPerm extractEntry node_modules/ionic-app-lib/node_modules/cordova-lib/node_modules/npm/node_modules/request/node_modules/bl/package.json
72038 silly gunzTarPerm modified mode [ 'node_modules/ionic-app-lib/node_modules/cordova-lib/node_modules/npm/node_modules/request/node_modules/bl/package.json',
72038 silly gunzTarPerm   420,
72038 silly gunzTarPerm   438 ]





81575 error Windows_NT 6.3.9600
81576 error argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "-g" "cordova" "ionic"
81577 error node v6.9.1
81578 error npm  v3.10.8
81579 error path C:\Users\Bastian\AppData\Roaming\npm\node_modules\.staging\abbrev-d5384ff1
81580 error code ENOENT
81581 error errno -4058
81582 error syscall rename
81583 error enoent ENOENT: no such file or directory, rename 'C:\Users\Bastian\AppData\Roaming\npm\node_modules\.staging\abbrev-d5384ff1' -> 'C:\Users\Bastian\AppData\Roaming\npm\node_modules\cordova\node_modules\npm\node_modules\abbrev'
81584 error enoent ENOENT: no such file or directory, rename 'C:\Users\Bastian\AppData\Roaming\npm\node_modules\.staging\abbrev-d5384ff1' -> 'C:\Users\Bastian\AppData\Roaming\npm\node_modules\cordova\node_modules\npm\node_modules\abbrev'
81584 error enoent This is most likely not a problem with npm itself
81584 error enoent and is related to npm not being able to find a file.
81585 verbose exit [ -4058, true ]

Have anyone an idea what might be wrong? Thanks!