错误找不到模块路径json npm

Question

I'm trying to install google Transport Tracker from thin like https://developers.google.com/maps/solutions/transport-tracker/start

I did all the steps from cmd win 10 but I stuck in step npm install , and seems wind issue.

I am trying now google cloud shell and also stuck in npm run main step and got this error:

 ghzoan@jernas-193723:~/backend$ npm run main > transport-tracker-server@1.0.0 main /home/ghzoan/backend > node main.js module.js:529 throw err; Error: Cannot find module './paths.json' at Function.Module._resolveFilename (module.js:527:15) at Function.Module._load (module.js:476:23) at Module.require (module.js:568:17) at require (internal/module.js:11:18) at Object.<anonymous> (/home/ghzoan/backend/main.js:53:26) at Module._compile (module.js:624:30) at Object.Module._extensions..js (module.js:635:10) at Module.load (module.js:545:32) at tryModuleLoad (module.js:508:12) at Function.Module._load (module.js:500:3) at Function.Module.runMain (module.js:665:10) at startup (bootstrap_node.js:201:16) at bootstrap_node.js:626:3 npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! transport-tracker-server@1.0.0 main: `node main.js` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the transport-tracker-server@1.0.0 main 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 

I got same the error with backend and map folders.

You can see how the site look till now gps.jernascenter.com .

It's been more than a week which I'm trying to install this script.

Answer 1

The only reason you are getting this error is because node cannot find your .json file.

Be absolutely certain that you are telling node exactly where paths.json is located in your require statement.

This isn't necessarily easy, but using a good editor or IDE works for me. It gives me

1. A good visual overview of my project directory and subdirectories
2. Alerts me when the file path argument to a require statement cannot be resolved (before running the code)
3. Generates the relative file path for me and places it in the clipboard so I can just paste into the require statement