Getting error Failed to load tests - Karma server failed to start: spawn npx karma ENOENT

[ideeeyut]

Describe the Bug

• When loading the Test Runner I get the error Failed to load tests - Karma server failed to start: spawn npx karma ENOENT

Steps to Reproduce the Behavior

This appears to be a machine config issue. Other developers working on the same project are using this extension correctly. We have a case where one machine is not displaying any tests in the Test Explorer. The following error is found in the Karma Test Explorer ({project name}) output.

[2023-01-26 18:34:28.015] [ERROR] [KarmaCommandLineTestServerExecutor::SimpleProcess]: Process gsmk4wyqh5 - Error from child process: 'Error: spawn npx karma ENOENT' - for command: npx karma start /home/dscott/.vscode/extensions/lucono.karma-test-explorer-0.8.0/dist/karma.conf --no-single-run

Describe the Expected Behavior

• Test should be displayed in the Test Explorer

Provide Debug Logs

• With the karmaTestExplorer.logLevel set to debug, please capture and attach the logs from all the Karma Test Explorer Output channels when the issue occurs.

KarmaTestExplorer-singularity.txt
KarmaTestExplorer-workspace.txt

Please also capture and attach the logs from all the Karma Server Output channels when the issue occurs.

It just has

------------------------------------
Karma Test Explorer: Launching Karma
------------------------------------

Provide a Minimal Reproduction Project

• In a public github repo, create a minimal project that reproduces the issue
• Provide a link to the project

Not available

Screenshots

• If applicable, add screenshots to help explain the issue you are having.

Please Provide the Following Information

• OS: Ubuntu 22.04
• Environment: n/a
• Node Version: 14.2.0
• VS Code Version: 1.74.3
• Karma Version: 6.4.1
• Frameworks: AngularJS/Angular Hybrid, Jasmine

Additional Context
Running the command that the log says errored
npx karma start /home/dscott/.vscode/extensions/lucono.karma-test-explorer-0.8.0/dist/karma.conf --no-single-run

returns

26 01 2023 13:53:23.282:ERROR [config]: Error in config file!
TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received undefined
   at new NodeError (internal/errors.js:322:7)
   at validateString (internal/validators.js:124:11)
   at Object.join (path.js:1148:7)
   at Kt.default (/home/dscott/.vscode/extensions/lucono.karma-test-explorer-0.8.0/dist/karma.conf.js:2:110773)
   at gt.loadOriginalConfig (/home/dscott/.vscode/extensions/lucono.karma-test-explorer-0.8.0/dist/karma.conf.js:2:111452)
   at gt.loadConfig (/home/dscott/.vscode/extensions/lucono.karma-test-explorer-0.8.0/dist/karma.conf.js:2:111309)
   at module.exports (/home/dscott/.vscode/extensions/lucono.karma-test-explorer-0.8.0/dist/karma.conf.js:2:114463)
   at Object.parseConfig (/home/dscott/src/singularity/node_modules/karma/lib/config.js:470:26)
   at Object.exports.run (/home/dscott/src/singularity/node_modules/karma/lib/cli.js:288:26)
   at Object.<anonymous> (/home/dscott/src/singularity/node_modules/karma/bin/karma:3:23)
   at Module._compile (internal/modules/cjs/loader.js:1085:14)
   at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
   at Module.load (internal/modules/cjs/loader.js:950:32)
   at Function.Module._load (internal/modules/cjs/loader.js:790:12)
   at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:75:12)
   at /home/dscott/.nvm/versions/node/v14.20.0/lib/node_modules/npm/node_modules/libnpx/index.js:268:14 {
 code: 'ERR_INVALID_ARG_TYPE'
}

• Add any other context about the problem here.

[lucono]

It looks like your config includes the following setting:

"karmaTestExplorer.karmaProcessCommand": "npx karma"

The karmaProcessCommand setting only accepts a single command or script, without arguments. If you remove that setting, the extension will by default use the node executable from your PATH and the karma installation in your project.

If you'd instead like to use a global installation of karma on the machine rather than one installed locally in the project, you can add the following config setting:

"karmaTestExplorer.allowGlobalPackageFallback": true

[ideeeyut]

That got me through it and I'm seeing tests now. Thank you!!!