I am using next-on-netlify package version 2.9.0. its support isr in my nextjs project that is deployed in netlify.now building the site become an error like below throwing.
/opt/build/repo/node_modules/next-on-netlify/lib/steps/setupRedirects.js:41
10:03:22 AM: ({ route }) => !isDynamicRoute(removeFileExtension(route))
10:03:22 AM: ^
10:03:22 AM: TypeError: isDynamicRoute is not a function
10:03:22 AM: at /opt/build/repo/node_modules/next-on-netlify/lib/steps/setupRedirects.js:41:21
10:03:22 AM: at Array.filter (<anonymous>)
10:03:22 AM: at setupRedirects (/opt/build/repo/node_modules/next-on-netlify/lib/steps/setupRedirects.js:40:41)
10:03:22 AM: at build (/opt/build/repo/node_modules/next-on-netlify/index.js:35:3)
10:03:22 AM: at nextOnNetlify (/opt/build/repo/node_modules/next-on-netlify/index.js:80:7)
10:03:22 AM: at Command.<anonymous> (/opt/build/repo/node_modules/next-on-netlify/next-on-netlify.js:23:5)
10:03:22 AM: at Command.listener [as _actionHandler] (/opt/build/repo/node_modules/next-on-netlify/node_modules/commander/index.js:426:31)
10:03:22 AM: at Command._parseCommand (/opt/build/repo/node_modules/next-on-netlify/node_modules/commander/index.js:1002:14)
10:03:22 AM: at Command._dispatchSubcommand (/opt/build/repo/node_modules/next-on-netlify/node_modules/commander/index.js:953:18)
10:03:22 AM: at Command._parseCommand (/opt/build/repo/node_modules/next-on-netlify/node_modules/commander/index.js:979:12)
10:03:22 AM: npm ERR! code ELIFECYCLE
10:03:22 AM: npm ERR! errno 1
10:03:22 AM: npm ERR! platformproperty@0.1.1 postbuild: `next-on-netlify`
10:03:22 AM: npm ERR! Exit status 1
10:03:22 AM: npm ERR!
10:03:22 AM: npm ERR! Failed at the platformproperty@0.1.1 postbuild script.
10:03:22 AM: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
10:03:22 AM: npm ERR! A complete log of this run can be found in:
10:03:22 AM: npm ERR! /opt/buildhome/.npm/_logs/2021-10-27T04_33_22_456Z-debug.log
10:03:22 AM: β
10:03:22 AM: ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
10:03:22 AM: "build.command" failed
10:03:22 AM: ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
10:03:22 AM: β
10:03:22 AM: Error message
10:03:22 AM: Command failed with exit code 1: npm run build
10:03:22 AM: β
10:03:22 AM: Error location
10:03:22 AM: In build.command from netlify.toml:
10:03:22 AM: npm run build
10:03:22 AM: β
10:03:22 AM: Resolved config
10:03:22 AM: build:
10:03:22 AM: command: npm run build
10:03:22 AM: commandOrigin: config
10:03:22 AM: environment:
10:03:22 AM: - REVIEW_ID
10:03:22 AM: publish: /opt/build/repo/out_publish
10:03:22 AM: publishOrigin: config
10:03:22 AM: functionsDirectory: /opt/build/repo/out_functions
10:03:22 AM: plugins:
10:03:22 AM: - inputs: {}
10:03:22 AM: origin: ui
10:03:22 AM: package: netlify-plugin-cache-nextjs
10:03:22 AM: Caching artifacts
10:03:22 AM: Started saving node modules
10:03:22 AM: Finished saving node modules
10:03:22 AM: Started saving build plugins
10:03:22 AM: Finished saving build plugins
10:03:22 AM: Started saving yarn cache
10:03:26 AM: Finished saving yarn cache
10:03:26 AM: Started saving pip cache
10:03:26 AM: Finished saving pip cache
10:03:26 AM: Started saving emacs cask dependencies
10:03:26 AM: Finished saving emacs cask dependencies
10:03:26 AM: Started saving maven dependencies
10:03:26 AM: Finished saving maven dependencies
10:03:26 AM: Started saving boot dependencies
10:03:26 AM: Finished saving boot dependencies
10:03:26 AM: Started saving rust rustup cache
10:03:26 AM: Finished saving rust rustup cache
10:03:26 AM: Started saving go dependencies
10:03:26 AM: Finished saving go dependencies
10:03:29 AM: Cached ruby version 2.7.1
10:03:29 AM: Build failed due to a user error: Build script returned non-zero exit code: 2
10:03:29 AM: Creating deploy upload records
10:03:29 AM: Failing build: Failed to build site
10:03:29 AM: Failed during stage 'building site': Build script returned non-zero exit code: 2
10:03:29 AM: Finished processing build request in 3m17.076953s`Preformatted text`