Getting error while running "node compile.js" for local deployment

Question

I'm getting an error while running node compile.js

The error is as follow;

C:\Users\PC\HealthcareDPL\compile.js:30
].HealthcareDPL;
 ^

TypeError: Cannot read properties of undefined (reading 'HealthcareDPL')
    at Object.<anonymous> (C:\Users\PC\HealthcareDPL\compile.js:30:2)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
    at require (node:internal/modules/cjs/helpers:102:18)
    at Object.<anonymous> (C:\Users\PC\HealthcareDPL\deploy.js:3:22)
    at Module._compile (node:internal/modules/cjs/loader:1105:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1159:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:77:12)
    at node:internal/main/run_main_module:17:47

Kindly help me with this issue.

My code for compile.js file is below:

const path = require("path");
const fs = require("fs");
const solc = require("solc");

const healthcarepath = path.resolve(
  __dirname,
  "contracts",
  "healthcaredpl.sol"
);
const source = fs.readFileSync(healthcarepath, "utf8");

const input = {
  language: "Solidity",
  sources: {
    "healthcaredpl.sol": {
      content: source,
    },
  },
  settings: {
    outputSelection: {
      "*": {
        "*": ["*"],
      },
    },
  },
};

module.exports = JSON.parse(solc.compile(JSON.stringify(input))).contracts[
  ":healthcaredpl.sol"
].HealthcareDPL;

console.log(JSON.parse(solc.compile(JSON.stringify(input))).contracts);

Answer 1

The error TypeError: Cannot read properties of undefined (reading 'HealthcareDPL') at Object. is the clue.

I'm unsure of the structure of the parsed solc.compile... etc... but it looks like you are trying to access the array contracts by passing a string value [ ":healthcaredpl.sol" ], which cannot happen in javascript.

I would remove the HealthcareDPL, and console.log(module.exports) to ascertain how this value is actually accessible.