analyze in markdown-blog example does not work with next 5 about learnnextjs-demo

[montionugera]

Error: listen EADDRINUSE 127.0.0.1:8888

Kill the application that uses the port 8888

[zebxu]

try to change the setting in next.config.js to

new BundleAnalyzerPlugin({
          analyzerMode: 'server',
          analyzerPort: isServer ? 8888 : 8889,
          openAnalyzer: true
        })

add one more port in analyzerPort

[stevaras]

Happens to me as well. After a few seconds it crashes.
Nothing seems to run on the same port.
Changing port number didn't fix this.

"dependencies": {
    "cross-env": "^5.0.1",
    "express": "^4.15.2",
    "firebase": "^5.7.0",
    "next": "^7.0.2",
    "react": "^16.2.0",
    "react-dom": "^16.2.0",
    "webpack-bundle-analyzer": "^3.0.3"
  }

node: v11.4.0
npm: 6.4.1

The complete log of this run:

0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/bin/node', '/usr/local/bin/npm', 'run', 'analyze' ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'preanalyze', 'analyze', 'postanalyze' ]
5 info lifecycle [email protected]~preanalyze: [email protected]
6 info lifecycle [email protected]~analyze: [email protected]
7 verbose lifecycle [email protected]~analyze: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~analyze: PATH: /usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/home/stevaras/projects/nextjs/learnnextjs-demo/node_modules/.bin:/home/stevaras/anaconda2/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
9 verbose lifecycle [email protected]~analyze: CWD: /home/stevaras/projects/nextjs/learnnextjs-demo
10 silly lifecycle [email protected]~analyze: Args: [ '-c', 'cross-env ANALYZE=1 next build' ]
11 silly lifecycle [email protected]~analyze: Returned: code: 1  signal: null
12 info lifecycle [email protected]~analyze: Failed to exec analyze script
13 verbose stack Error: [email protected] analyze: `cross-env ANALYZE=1 next build`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:301:16)
13 verbose stack     at EventEmitter.emit (events.js:189:13)
13 verbose stack     at ChildProcess.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:189:13)
13 verbose stack     at maybeClose (internal/child_process.js:978:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:265:5)
14 verbose pkgid [email protected]
15 verbose cwd /home/stevaras/projects/nextjs/learnnextjs-demo
16 verbose Linux 4.15.0-42-generic
17 verbose argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "analyze"
18 verbose node v11.4.0
19 verbose npm  v6.4.1
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] analyze: `cross-env ANALYZE=1 next build`
22 error Exit status 1
23 error Failed at the [email protected] analyze script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

[Ishino]

running into the same issue

1 verbose cli [ '/usr/local/Cellar/node@8/8.12.0/bin/node',
1 verbose cli   '/usr/local/opt/node@8/bin/npm',
1 verbose cli   'run',
1 verbose cli   'analyze' ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'preanalyze', 'analyze', 'postanalyze' ]
5 info lifecycle [email protected]~preanalyze: [email protected]
6 info lifecycle [email protected]~analyze: [email protected]
7 verbose lifecycle [email protected]~analyze: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~analyze: PATH: /usr/local/Cellar/node@8/8.12.0/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/Users/dries/learnnextjs-demo/node_modules/.bin:/Users/dries/google-cloud-sdk/bin:/usr/local/opt/node@8/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/share/dotnet:~/.dotnet/tools
9 verbose lifecycle [email protected]~analyze: CWD: /Users/dries/learnnextjs-demo
10 silly lifecycle [email protected]~analyze: Args: [ '-c', 'cross-env ANALYZE=1 next build' ]
11 silly lifecycle [email protected]~analyze: Returned: code: 1  signal: null
12 info lifecycle [email protected]~analyze: Failed to exec analyze script
13 verbose stack Error: [email protected] analyze: `cross-env ANALYZE=1 next build`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (/usr/local/Cellar/node@8/8.12.0/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:301:16)
13 verbose stack     at emitTwo (events.js:126:13)
13 verbose stack     at EventEmitter.emit (events.js:214:7)
13 verbose stack     at ChildProcess.<anonymous> (/usr/local/Cellar/node@8/8.12.0/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack     at emitTwo (events.js:126:13)
13 verbose stack     at ChildProcess.emit (events.js:214:7)
13 verbose stack     at maybeClose (internal/child_process.js:915:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)
14 verbose pkgid [email protected]
15 verbose cwd /Users/dries/learnnextjs-demo
16 verbose Darwin 18.2.0
17 verbose argv "/usr/local/Cellar/node@8/8.12.0/bin/node" "/usr/local/opt/node@8/bin/npm" "run" "analyze"
18 verbose node v8.12.0
19 verbose npm  v6.4.1
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] analyze: `cross-env ANALYZE=1 next build`
22 error Exit status 1
23 error Failed at the [email protected] analyze script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]```

[FabienSalles]

I don't understand the problem but I fixed the issue by modified the config option :
new BundleAnalyzerPlugin({analyzerMode: 'static'})