$ npm i -g docsify-cli /root/.nvm/versions/node/v14.15.1/bin/docsify -> /root/.nvm/versions/node/v14.15.1/lib/node_modules/docsify-cli/bin/docsify > docsify@4.12.1 postinstall /root/.nvm/versions/node/v14.15.1/lib/node_modules/docsify-cli/node_modules/docsify > opencollective-postinstall sh: 1: opencollective-postinstall: Permission denied npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@~2.3.1 (node_modules/docsify-cli/node_modules/chokidar/node_modules/fsevents): npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"}) npm ERR! code ELIFECYCLE npm ERR! syscall spawn npm ERR! file sh npm ERR! errno ENOENT npm ERR! docsify@4.12.1 postinstall: `opencollective-postinstall` npm ERR! spawn ENOENT npm ERR! npm ERR! Failed at the docsify@4.12.1 postinstall 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! /root/.npm/_logs/2021-03-27T09_10_53_098Z-debug.log 

5745 silly postinstall docsify@4.12.1 5746 info lifecycle docsify@4.12.1~postinstall: docsify@4.12.1 5747 verbose lifecycle docsify@4.12.1~postinstall: unsafe-perm in lifecycle false 5748 verbose lifecycle docsify@4.12.1~postinstall: PATH: /root/.nvm/versions/node/v14.15.1/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/root/.nvm/versions/node/v14.15.1/lib/node_modules/docsify-cli/node_modules/docsify/node_modules/.bin:/root/.nvm/versions/node/v14.15.1/lib/node_modules/docsify-cli/node_modules/.bin:/root/.nvm/versions/node/v14.15.1/lib/node_modules/.bin:/root/bin:/root/.vscode-server/bin/2b9aebd5354a3629c3aba0a5f5df49f43d6689f8/bin:/root/bin:/root/.nvm/versions/node/v14.15.1/bin:/root/.vscode-server/bin/2b9aebd5354a3629c3aba0a5f5df49f43d6689f8/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin 5749 verbose lifecycle docsify@4.12.1~postinstall: CWD: /root/.nvm/versions/node/v14.15.1/lib/node_modules/docsify-cli/node_modules/docsify 5750 silly lifecycle docsify@4.12.1~postinstall: Args: [ '-c', 'opencollective-postinstall' ] 5751 info lifecycle docsify@4.12.1~postinstall: Failed to exec postinstall script 5752 timing action:postinstall Completed in 149ms 5753 verbose unlock done using /root/.npm/_locks/staging-5069969764c9560c.lock for /root/.nvm/versions/node/v14.15.1/lib/node_modules/.staging 5754 timing stage:rollbackFailedOptional Completed in 379ms 5755 timing stage:runTopLevelLifecycles Completed in 8086ms 5756 warn optional SKIPPING OPTIONAL DEPENDENCY: fsevents@~2.3.1 (node_modules/docsify-cli/node_modules/chokidar/node_modules/fsevents): 5757 warn notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"}) 5758 verbose notsup SKIPPING OPTIONAL DEPENDENCY: Valid OS: darwin 5758 verbose notsup SKIPPING OPTIONAL DEPENDENCY: Valid Arch: any 5758 verbose notsup SKIPPING OPTIONAL DEPENDENCY: Actual OS: linux 5758 verbose notsup SKIPPING OPTIONAL DEPENDENCY: Actual Arch: x64 5759 verbose stack Error: docsify@4.12.1 postinstall: `opencollective-postinstall` 5759 verbose stack spawn ENOENT 5759 verbose stack at ChildProcess.<anonymous> (/root/.nvm/versions/node/v14.15.1/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:48:18) 5759 verbose stack at ChildProcess.emit (events.js:315:20) 5759 verbose stack at maybeClose (internal/child_process.js:1048:16) 5759 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5) 5760 verbose pkgid docsify@4.12.1 5761 verbose cwd /root/Works/fst-logic-centre 5762 verbose Linux 4.15.0-91-generic 5763 verbose argv "/root/.nvm/versions/node/v14.15.1/bin/node" "/root/.nvm/versions/node/v14.15.1/bin/npm" "i" "-g" "docsify-cli" 5764 verbose node v14.15.1 5765 verbose npm v6.14.8 5766 error code ELIFECYCLE 5767 error syscall spawn 5768 error file sh 5769 error errno ENOENT 5770 error docsify@4.12.1 postinstall: `opencollective-postinstall` 5770 error spawn ENOENT 5771 error Failed at the docsify@4.12.1 postinstall script. 5771 error This is probably not a problem with npm. There is likely additional logging output above. 5772 verbose exit [ 1, true ]