ArcGIS Experience Client not starting

Anneley_Hadland — Wed, 16 Dec 2020 17:23:42 GMT

I'm trying to start up the Experience client but I'm getting the below error. I am using Administrator rights on the cmd, and I don't have any custom widgets in the build. Please advise.

> exb-client@1.2.0 start C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client > cross-env NODE_ENV=development webpack --mode development --watch C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack-cli\bin\cli.js:281 throw err; ^ AssertionError [ERR_ASSERTION]: ArgumentError: HappyThreadPool requires a positive integer for its size , but got {0}. at HappyThreadPool (C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\happypack\lib\HappyThreadPool.js:38:3) at HappyPlugin.apply (C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\happypack\lib\HappyPlugin.js:76:47) at webpack (C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack\lib\webpack.js:51:13) at C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack\lib\webpack.js:36:39 at Array.map (<anonymous>) at webpack (C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack\lib\webpack.js:36:24) at processOptions (C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack-cli\bin\cli.js:272:16) at C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack-cli\bin\cli.js:364:3 at Object.parse (C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack-cli\node_modules\yargs\yargs.js:576:18) at C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack-cli\bin\cli.js:49:8 at Object.<anonymous> (C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack-cli\bin\cli.js:366:3) at Module._compile (internal/modules/cjs/loader.js:1063:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10) at Module.load (internal/modules/cjs/loader.js:928:32) at Function.Module._load (internal/modules/cjs/loader.js:769:14) at Module.require (internal/modules/cjs/loader.js:952:19) at require (internal/modules/cjs/helpers.js:88:18) at Object.<anonymous> (C:\Users\Anneley\Documents\ArcGISExperienceBuilder\ArcGISExperienceBuilder\client\node_modules\webpack\bin\webpack.js:156:2) at Module._compile (internal/modules/cjs/loader.js:1063:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10) at Module.load (internal/modules/cjs/loader.js:928:32) at Function.Module._load (internal/modules/cjs/loader.js:769:14) at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12) at internal/main/run_main_module.js:17:47 { generatedMessage: false, code: 'ERR_ASSERTION', actual: false, expected: true, operator: '==' } npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! exb-client@1.2.0 start: `cross-env NODE_ENV=development webpack --mode development --watch` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the exb-client@1.2.0 start 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: npm ERR! C:\Users\Anneley\AppData\Roaming\npm-cache\_logs\2020-12-16T17_09_01_833Z-debug.log

Re: ArcGIS Experience Client not starting

farhan_ghazali — Tue, 02 Feb 2021 03:59:11 GMT

You have to modify `./client/webpack/webpack.common.js`.

In that file, look for `new HappyPack({...})`

You have to manually set the thread count, for example like below.

```

new HappyPack({

id: tsLoader.options.id,

threads: 1,

verbose: false,

loaders: [{

loader: 'ts-loader',

options: {

happyPackMode: true,

configFile: commonOptions.tsConfigPath || undefined

}

}
```

Hope it helps.

PS: Experience builder is not a finished product.

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ArcGIS Experience Client not starting

Re: ArcGIS Experience Client not starting