Error: Cannot find module './router'

[Thispain]

When I try to run the project with "node app.js" I get this error message.

I took the following steps to eliminate the error message:

• I used the "npm install router" command: It didn't change the situation.
• I deleted line 50 from the app.js file: The page said "Cannot GET /" and I found 2 error messages on the browser console:
• GET http://127.0.0.1:5000/ 404 (Not Found)
• Refused to load the image 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACYAAAAmCAYAAACoPemuAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAABklJREFUeNqsmFtwE1UYx/97Tdqkbei91Gk6IFouYjqjBR3aQTstoM40DD4gOIO++ sL4pr45+q7iu+OMyJMD1RcZAXGEBxiUm0JrKfQiDoVeSEmv2WSP3znJJpt0d1Mgpz3d3bPJnt/+v8v5TqX9X89HGMNZ6iGGdGOZP9a11Riz3bddm4n4tz991Pg+SthkDmVmoPhE2Q5bLxwruIakRVHiJnMo+9s/SZ MULfTW56PRUiuWB8UKjmCrIqNfva+kYPb5vRiYi5/lnuQrsWIOkzyWWixnzjc/K505VUcgN9Ai5qwo1w7duHknFgzoUDU5Ky+z+YrbuW3sajgcjqmsCAnzSBeFLcn06NJSPBoI+CBJMmQZjw1mmmZsbGzsQ3kFUBEopxewb...GUQklGizqDT1Nxc FdnVrlTF6877CtTy7FCACcQV9N6po /cOa9sByZUGFTZ8mfrVDi+u7sLW9eH8Xb3K3lq8aOyvuuD+7Rp2kkLqh+MQrVIZ/xoOo8z69q0nVudkFVa2jc2GNCoDFKogNTIrG3hZqiZxCrZdi7ibNenIyFRKK1iZ+vse5S9R4YPI4Wom015mb23pwqvbinLLuq0T csmVAsqeyzVln5n37GorAZPiFKm0LykYF9vFba1V9GuSYVPV0kxWWzt8lTKZP6SgvH2+r7+h5Ksh/KVMhHtrSSoSrHX1AmKl9tuUNaYXNL/trFUP6+5cmteGqojUkmmU0TnvrWanVJJwZhp/JgOBEoLJm2WeyoIqoKUkkXnUGlBmC cUrzZKCna2f3+/aRoxrlRfTxAvbw0Ks/EuZ0prt1RkV5E2yTEVJW6pVKK/r7fivfbNZeQ4JhnWFFGbTKbyo67Ap6zo5FDUX/tfgAEAQ3WUFGFdgUwAAAAASUVORK5CYII=' because it violates the following Content Security Policy directive: "default-src 'none' '". Note that 'img-src' was not explicitly set, so 'default-src' is used as a fallback.

I fixed the 2nd error by running "scripts/postinstall.js", but the 1st is remained here.

[demipixel]

Try running it with npm run dev or npm run build && npm run start

[Thispain]

I was running it with npm run dev and:

• I get this error message on the console:

[email protected] dev
next dev

ready - started server on 0.0.0.0:3000, url: http://localhost:3000
Browserslist: caniuse-lite is outdated. Please run:
npx browserslist@latest --update-db
Why you should do it regularly: https://github.com/browserslist/browserslist#browsers-data-updating
wait - compiling...
event - compiled client and server successfully in 6.8s (1042 modules)
wait - compiling /outpost (client and server)...
wait - compiling...
error - ./node_modules/factorio-generators/tools/blueprintTool.js:1:0
Module not found: Can't resolve 'factorio-blueprint'

Import trace for requested module:
./node_modules/factorio-generators/index.js
./lib/generators/ore-outpost.generator.ts
./pages/outpost.tsx

https://nextjs.org/docs/messages/module-not-found
wait - compiling /_error (client and server)...
wait - compiling...
event - compiled client and server successfully in 25.1s (1043 modules)
error - Error: Cannot find module '$MYLOCALPATH\autotorio\node_modules\factorio-blueprint\dist\factorio-blueprint.min.js'. Please verify that the package.json has a valid "main" entry

• And I get it on the website (not in broswer console):

Failed to compile
./node_modules/factorio-generators/tools/blueprintTool.js:1:0
Module not found: Can't resolve 'factorio-blueprint'

Import trace for requested module:
./node_modules/factorio-generators/index.js
./lib/generators/ore-outpost.generator.ts
./pages/outpost.tsx

https://nextjs.org/docs/messages/module-not-found
This error occurred during the build process and can only be dismissed by fixing the error.

I was using npm install factorio-blueprint command, and it didn't change the situation, because the factorio-blueprint package have not dist folder.