New error: "TypeError: confVer.split is not a function"

[apfelbox]

Hi,

suddenly I get this new error:

ERROR in ./assets/js/app/MyClass.js
Module build failed (from ./node_modules/eslint-loader/index.js):
TypeError: confVer.split is not a function
    at getReactVersionFromContext (/..project-dir../node_modules/eslint-plugin-react/lib/util/version.js:22:18)
    at Object.testReactVersion (/..project-dir../node_modules/eslint-plugin-react/lib/util/version.js:47:35)
    at CallExpression (/..project-dir../node_modules/eslint-plugin-react/lib/rules/no-render-return-value.js:40:25)
    at listeners.(anonymous function).forEach.listener (/..project-dir../node_modules/eslint/lib/util/safe-emitter.js:45:58)
    at Array.forEach (<anonymous>)
    at Object.emit (/..project-dir../node_modules/eslint/lib/util/safe-emitter.js:45:38)
    at NodeEventGenerator.applySelector (/..project-dir../node_modules/eslint/lib/util/node-event-generator.js:251:26)
    at NodeEventGenerator.applySelectors (/..project-dir../node_modules/eslint/lib/util/node-event-generator.js:280:22)
    at NodeEventGenerator.enterNode (/..project-dir../node_modules/eslint/lib/util/node-event-generator.js:294:14)
    at CodePathAnalyzer.enterNode (/..project-dir../node_modules/eslint/lib/code-path-analysis/code-path-analyzer.js:632:23)
    at nodeQueue.forEach.traversalInfo (/..project-dir../node_modules/eslint/lib/linter.js:860:28)
    at Array.forEach (<anonymous>)
    at runRules (/..project-dir../node_modules/eslint/lib/linter.js:856:15)
    at Linter._verifyWithoutProcessors (/..project-dir../node_modules/eslint/lib/linter.js:1001:31)
    at preprocess.map.textBlock (/..project-dir../node_modules/eslint/lib/linter.js:1052:35)
    at Array.map (<anonymous>)
 @ ./assets/js/app.js 2:0-44 5:30-41

I am using the following versions:

node.js 11.2.0
macOS 10.14.1

babel-eslint@10.0.1
eslint@5.9.0
eslint-loader@2.1.1
eslint-plugin-react@7.11.1

I am trying to lint Preact code with the plugin which previously worked.

[alexzherdev]

Could you post your eslint config?

[apfelbox]

.eslintrc.yml is here: https://github.com/Becklyn/kaba/blob/af2a8ab76c2d8de530063e9513454bac25301769/.eslintrc.yml
eslint-loader config is here: https://github.com/Becklyn/kaba/blob/af2a8ab76c2d8de530063e9513454bac25301769/lib/Kaba.js#L617-L622

[alexzherdev]

Not sure how it worked before, but react version in the config is supposed to be a string, i.e. "15.0".

[apfelbox]

Hmm, maybe I just didn’t lint after adding the version constraint.. not sure anymore.

Meanwhile I am so used to not quoting strings in YAML, that I now accidentally produced a number 😅

Thanks for the hint though, your great work and the improved error message. 🙌