$ npm install swiper@2.7.6 --save-dev npm WARN rollback Rolling back node-pre-gyp@0.10.0 failed (this is probably harmless): EPERM: operation not permitted, scandir 'F: est ext-vue est ode_modulesfsevents ode_modules' npm WARN ajv-keywords@3.2.0 requires a peer of ajv@^6.0.0 but none is installed. You must install peer dependencies yourself. npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.2.4 (node_modulesfsevents): npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"}) + swiper@2.7.6 added 1 package from 1 contributor and audited 33486 packages in 25.004s found 18 vulnerabilities (1 low, 10 moderate, 6 high, 1 critical) run `npm audit fix` to fix them, or `npm audit` for details