Web3 不会在 Azure 上编译

Question

Steps to reproduce:

1. In Visual Studio 2019 Community, create a new Basic Azure Node.js Express 4 Application (TypeScript).
2. Npm install web3
3. Add a line 4 after import path = require('path');

   var Web3 = require('web3');

4. Run it locally to ensure that it works (it does)
5. Publish it to Azure and watch the logs

Expected Result

It should compile and run fine -- just as it did locally in step 4

Actual Results (from Azure log stream)

Thu Apr 02 2020 17:31:57 GMT+0000 (Coordinated Universal Time): Application has thrown an uncaught exception and is terminated:D:\\home\\site\\wwwroot\\node_modules\\web3-core-method\\src\\index.js:285.then(async function (receipt) {^^^^^SyntaxError: missing ) after argument listat Object.exports.runInThisContext (vm.js:76:16)at Module._compile (module.js:542:28)at Object.Module._extensions..js (module.js:579:10)at Module.load (module.js:487:32)at tryModuleLoad (module.js:446:12)at Function.Module._load (module.js:438:3)at Module.require (module.js:497:17)at require (internal/module.js:20:19)at Object. (D:\\home\\site\\wwwroot\\node_modules\\web3-core\\src\\extend.js:27:14)at Module._compile (module.js:570:32)Application has thrown an uncaught exception and is terminated:D:\\home\\site\\wwwroot\\node_modules\\web3-core-method\\src\\index.js:285.then(async function (receipt) {^^^^^SyntaxError: missing ) after argument listat Object.exports.runInThisContext (vm.js:76:16)at Module._compile (module.js:542:28)at Object.Module._extensions..js (module.js:579:10)at Module.load (module.js:487:32)at tryModuleLoad (module.js:446:12)at Function.Module._load (module.js:438:3)at Module.require (module.js:497:17)at require (internal/module.js:20:19)at Object. (D:\\home\\site\\wwwroot\\node_modules\\web3-core\\src\\extend.js:27:14)at Module._compile (module.js:570:32)

I have looked at line 285 in \\node_modules\\web3-core-method\\src\\index.js and it looks fine.

I deleted my package-lock.json and my node_modules directory and npm installed again (not to mention that I did it on both the original project and the small test project).

I'm at a loss here. Any suggestions?

Answer 1

I had the very same issue running the latest version of web3 (1.2.6) with react on my desktop, this error shows on importing web3 .

const Web3 = require('web3');

It's interesting to note that there is no issue if I write the same line in node interactive console and the object Web3 works properly.

I change the web3 version to 1.0.0-beta.55 and it worked fine. I hope that this is a bug to be fixed in the latest versions.

PS: before I try changing web3 version I tried updating node from 8.9.4 to 13.12.0 but the error still persisted.

Answer 2

So . . . . I finally figured it out.

Azure, by default has an abysmally old version of Node -- and you can only upgrade it to 8.9.4 (while node 12.16.1 is the LTS version).

But upgrading by adding the configuration setting WEBSITE_NODE_DEFAULT_VERSION with a value of 8.9.4 will fix the problem.