TypeError: path.replace is not a function in ./typescript/lib/typescript.js

[BiosBoy]

Hi, today a had faced with such strange issue. A think this probably of a bug.

Environment:
TypeScript Version: 3.1.0
Webpack Version: 4.15.0
Path Version: 0.12.7

Loaders:
AW-Loader Version: 5.2.0
TS-Loader Version: 4.5.0
(both tested with it, the same scenario):

all package above are installed globally and also locally in project

Code of an Error

ERROR in ./src/main.ts
Module build failed (from /Users/react-apps/node_modules/ts-loader/index.js):
TypeError: path.replace is not a function
    at Object.normalizeSlashes (/Users/react-apps/node_modules/typescript/lib/typescript.js:14080:21)
    at Object.combinePaths (/Users/react-apps/node_modules/typescript/lib/typescript.js:14405:31)
    at getWildcardDirectories (/Users/react-apps/node_modules/typescript/lib/typescript.js:24289:48)
    at matchFileNames (/Users/react-apps/node_modules/typescript/lib/typescript.js:24168:35)
    at getFileNames (/Users/react-apps/node_modules/typescript/lib/typescript.js:23765:26)
    at parseJsonConfigFileContentWorker (/Users/react-apps/node_modules/typescript/lib/typescript.js:23712:18)
    at Object.parseJsonConfigFileContent (/Users/react-apps/node_modules/typescript/lib/typescript.js:23662:16)
    at Object.getConfigParseResult (/Users/react-apps/node_modules/ts-loader/dist/config.js:82:40)
    at successfulTypeScriptInstance (/Users/react-apps/node_modules/ts-loader/dist/instances.js:64:40)
    at Object.getTypeScriptInstance (/Users/react-apps/node_modules/ts-loader/dist/instances.js:51:12)
    at Object.loader (/Users/react-apps/node_modules/ts-loader/dist/index.js:16:41)
 @ multi ./src/main.ts webpack-hot-middleware/client?path=http://192.168.0.102:3000/__webpack_hmr

Expected behavior:
Must compile app without any errors

Actual behavior:
Broke on Webpack 4 final compilation stage

Related Issues:
no one with typescript

[RyanCavanaugh]

Might be a ts-loader bug. Do you have a repo we can try out?

[fabioberger]

I'm getting this same error when using TypeDoc v0.12.0 with Typescript v3.0.1.

Stacktrace:

Using TypeScript 3.0.1 from /Users/fabio/projects/0x-monorepo-one/node_modules/typescript/lib
/Users/fabio/projects/0x-monorepo-one/node_modules/typescript/lib/typescript.js:14080
        return path.replace(backslashRegExp, ts.directorySeparator);
                    ^

TypeError: Cannot read property 'replace' of undefined
    at Object.normalizeSlashes (/Users/fabio/projects/0x-monorepo-one/node_modules/typescript/lib/typescript.js:14080:21)
    at getCommonSourceDirectory (/Users/fabio/projects/0x-monorepo-one/node_modules/typescript/lib/typescript.js:82737:68)
    at verifyCompilerOptions (/Users/fabio/projects/0x-monorepo-one/node_modules/typescript/lib/typescript.js:84278:27)
    at Object.createProgram (/Users/fabio/projects/0x-monorepo-one/node_modules/typescript/lib/typescript.js:82703:9)
    at Converter.convert (/Users/fabio/projects/0x-monorepo-one/node_modules/typedoc/dist/lib/converter/converter.js:109:26)
    at CliApplication.Application.convert (/Users/fabio/projects/0x-monorepo-one/node_modules/typedoc/dist/lib/application.js:84:37)
    at CliApplication.bootstrap (/Users/fabio/projects/0x-monorepo-one/node_modules/typedoc/dist/lib/cli.js:62:32)
    at CliApplication.Application [as constructor] (/Users/fabio/projects/0x-monorepo-one/node_modules/typedoc/dist/lib/application.js:44:15)
    at new CliApplication (/Users/fabio/projects/0x-monorepo-one/node_modules/typedoc/dist/lib/cli.js:38:42)
    at Object.<anonymous> (/Users/fabio/projects/0x-monorepo-one/node_modules/typedoc/bin/typedoc:4:1)
error Command failed with exit code 1.

As for a repo, we are trying to move to project references in this PR: 0xProject/0x-monorepo#991. You can clone it, run yarn && yarn build from the root directory, then run yarn test:generate_docs:circleci to reproduce the error.

[simonbuchan]

The failing line in getCommonSourceDirectory is

https://github.com/Microsoft/TypeScript/blob/73ec5964efc4711478b015c8635f0bc8b7bf13d9/src/compiler/program.ts#L801

when debugging, options.configFilePath is indeed undefined. So it looks like another case of bad use of ! (for convenience and tracking, the referenced issue is #18217)

ts-loader is passing options only slightly edited from parseJsonConfigFileContent(), which is returning configFilePath: undefined if that is called without the undocumented configFileName argument, so it looks like this should never be assumed. Should ts-loader add a workaround fix for now, since it shouldn't hurt?

[Akuukis]

I got similar error by using ForkTsCheckerWebpackPlugin. Interestingly the build itself succeeds (it is based on Babel 7 and @babel/preset-typescript).

$ROOT/node_modules/typescript/lib/typescript.js:14077
        return path.replace(backslashRegExp, ts.directorySeparator);
                    ^

TypeError: Cannot read property 'replace' of undefined
    at Object.normalizeSlashes ($ROOT/node_modules/typescript/lib/typescript.js:14077:21)
    at getCommonSourceDirectory ($ROOT/node_modules/typescript/lib/typescript.js:82777:68)
    at verifyCompilerOptions ($ROOT/node_modules/typescript/lib/typescript.js:84318:27)
    at Object.createProgram ($ROOT/node_modules/typescript/lib/typescript.js:82743:9)
    at Function.IncrementalChecker.createProgram ($ROOT/node_modules/fork-ts-checker-webpack-plugin/lib/IncrementalChecker.js:64:19)
    at IncrementalChecker.loadDefaultProgram ($ROOT/node_modules/fork-ts-checker-webpack-plugin/lib/IncrementalChecker.js:108:35)
    at IncrementalChecker.nextIteration ($ROOT/node_modules/fork-ts-checker-webpack-plugin/lib/IncrementalChecker.js:97:64)
    at run ($ROOT/node_modules/fork-ts-checker-webpack-plugin/lib/service.js:11:13)
    at process.<anonymous> ($ROOT/node_modules/fork-ts-checker-webpack-plugin/lib/service.js:38:5)

Versions:

$ yarn list typescript webpack fork-ts-checker-webpack-plugin
├─ fork-ts-checker-webpack-plugin@0.4.9
├─ path@0.12.7
├─ typescript@3.0.3 (typescript@3.1.0-dev.20180913 has identical behavior)
└─ webpack@4.17.2

P.S. Ping to fork-ts-checker-webpack-plugin mainteiner @johnnyreilly as per request at #815

[RyanCavanaugh]

This seems to be fixed, or at least not affecting anyone anymore

[Sourav-1204]

i am getting the same error

PS C:\Users\LENOVO\Desktop\HTML\Registration form\src> node app.js
C:\Users\LENOVO\Desktop\HTML\Registration form\node_modules\path-to-regexp\index.js:68
path = path.replace(
^

TypeError: path.replace is not a function
at pathToRegexp (C:\Users\LENOVO\Desktop\HTML\Registration form\node_modules\path-to-regexp\index.js:68:15)
at new Layer (C:\Users\LENOVO\Desktop\HTML\Registration form\node_modules\express\lib\router\layer.js:45:17)
at Function.route (C:\Users\LENOVO\Desktop\HTML\Registration form\node_modules\express\lib\router\index.js:505:15)
at app. [as get] (C:\Users\LENOVO\Desktop\HTML\Registration form\node_modules\express\lib\application.js:4n.js:498:30)
at Object. (C:\Users\LENOVO\Desktop\HTML\Registration form\src\app.js:9:5)
at Module._compile (node:internal/modules/cjs/loader:1546:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1691:10)
at Module.load (node:internal/modules/cjs/loader:1317:32)
at Module._load (node:internal/modules/cjs/loader:1127:12)
at TracingChannel.traceSync (node:diagnostics_channel:315:14)

Node.js v22.6.0

please help me out !!

[RyanCavanaugh]

@Sourav-1204 that's an error in your code, not TypeScript's.