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I got the following errors while trying to deploy my smart contract:

sers-Air:lottery user$ node deploy.js  internal/modules/cjs/loader.js:582      throw err;      ^    Error: Cannot find module 'truffle-hdwallet-provider'      at Function.Module._resolveFilename (internal/modules/cjs/loader.js:580:15)      at Function.Module._load (internal/modules/cjs/loader.js:506:25)      at Module.require (internal/modules/cjs/loader.js:636:17)      at require (internal/modules/cjs/helpers.js:20:18)      at Object.<anonymous> (/Users/user/Documents/prod/EthereumCasts/lottery/deploy.js:1:88)      at Module._compile (internal/modules/cjs/loader.js:688:30)      at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)      at Module.load (internal/modules/cjs/loader.js:598:32)      at tryModuleLoad (internal/modules/cjs/loader.js:537:12)      at Function.Module._load (internal/modules/cjs/loader.js:529:3)  users-Air:lottery user$    I also tried to change it to const result = await new web3.eth.Contract(JSON.parse(interface))  .deploy({ data: '0x' + bytecode })  .send({ from: accounts[0] }); 

as suggested in the other thread but it didn’t work. My github repository:

https://github.com/damianjnc/lottery

I did npm install --save [email protected] but now got that error:

users-Air: lottery user$ node deploy.js

Attempting to deploy from account 0x14Ca642FA083121605fc860dB0024254D3FaCd61

(node:31456) UnhandledPromiseRejectionWarning: Error: Transaction was not mined within 50 blocks, please make sure your transaction was properly send. Be aware that it might still be mined!  at /Users/user/Documents/prod/EthereumCasts/lottery/node_modules/web3-core-method/src/index.js:375:45  at tryCatcher (/Users/user/Documents/prod/EthereumCasts/lottery/node_modules/web3-core-promievent/node_modules/bluebird/js/release/util.js:16:23)  at Promise._settlePromiseFromHandler (/Users/user/Documents/prod/EthereumCasts/lottery/node_modules/web3-core-promievent/node_modules/bluebird/js/release/promise.js:497:31)  at Promise._settlePromise (/Users/user/Documents/prod/EthereumCasts/lottery/node_modules/web3-core-promievent/node_modules/bluebird/js/release/promise.js:555:18)  at Promise._settlePromise0 (/Users/user/Documents/prod/EthereumCasts/lottery/node_modules/web3-core-promievent/node_modules/bluebird/js/release/promise.js:600:10)  at Promise._settlePromises (/Users/user/Documents/prod/EthereumCasts/lottery/node_modules/web3-core-promievent/node_modules/bluebird/js/release/promise.js:679:18)  at Async._drainQueue (/Users/user/Documents/prod/EthereumCasts/lottery/node_modules/web3-core-promievent/node_modules/bluebird/js/release/async.js:125:16)  at Async._drainQueues (/Users/user/Documents/prod/EthereumCasts/lottery/node_modules/web3-core-promievent/node_modules/bluebird/js/release/async.js:135:10)  at Immediate.Async.drainQueues (/Users/user/Documents/prod/EthereumCasts/lottery/node_modules/web3-core-promievent/node_modules/bluebird/js/release/async.js:16:14)  at runCallback (timers.js:705:18)  at tryOnImmediate (timers.js:676:5)  at processImmediate (timers.js:658:5)  (node:31456) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)  (node:31456) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code. 

users-Air:lottery user$