Installation fails with Cordova 7.0.0

[light]

When installing the plugin from GitHub as instructed in the README the installation fails with the following message :

$ cordova plugin add https://github.com/guillaumebarre/ICPDoNotBackup
Error: Failed to fetch plugin https://github.com/guillaumebarre/ICPDoNotBackup via registry.
Probably this is either a connection problem, or plugin spec is incorrect.
Check your connection and plugin name/version/URL.
Error: npm: Command failed with exit code 235 Error output:
npm ERR! addLocal Could not install /var/folders/mf/pnz69gnx0bn7ckdvctnn_yy4000086/T/npm-9327-b2b3ea99/git-cache-91aeb87e/fe86216825540101477997d45e731f8ccc6ab106
npm ERR! code EISDIR
npm ERR! errno -21
npm ERR! syscall read
npm ERR! eisdir EISDIR: illegal operation on a directory, read
npm ERR! eisdir This is most likely not a problem with npm itself
npm ERR! eisdir and is related to npm not being able to find a package.json in
npm ERR! eisdir a package you are trying to install.

The plugin needs a package.json to install properly.

[syc-pad]

Same here ! With Cordova 7.0.1