Uncaught Error: Cannot find module "tslib" - Running self tests

[gitgrimbo]

To run the self tests on Window, I had to install cross-env and use the following test script:

"test": "cross-env NODE_PATH=_build node _tests/src/bin/intern.js"

Expected behavior

Self tests run.

Current behavior

This page:

http://localhost:9000/__intern/browser/remote.html?basePath=%2F&runInSync&serverUrl=http%3A%2F%2Flocalhost%3A9000%2F&sessionId=8c18cc42a59ebb4441c4586c8d0b2e1a&socketPort=9001

is blank, and outputs this error in the console:

Uncaught Error: Cannot find module "tslib".
    at webpackEmptyContext (providers_sync:2)
    at eval (xhr.js:15)
    at eval (xhr.js:3)
    at eval (xhr.js:12)
    at Object../node_modules/@dojo/core/request/providers/xhr.js (remote.js:258)
    at __webpack_require__ (remote.js:20)
    at eval (Browser.ts:5)
    at Object../src/lib/executors/Browser.ts (remote.js:1326)
    at __webpack_require__ (remote.js:20)
    at eval (remote.ts:4)

Possible solution

Steps to reproduce (for bugs)

1. …
2. …
3. …

Environment

Intern version: 4.2.0
Node version: 10.3.0
NPM version: 6.1.0
Browser version: 67.0.3396.87 (Official Build) (64-bit)

Additional information

[gitgrimbo]

In @dojo/core/request/providers/xhr.js:

In some error handler when trying to require("tslib"):

[gitgrimbo]

Tried a clean build in VirtualBox/Ubuntu and works.

Get Critical dependency: require function is used in a way in which dependencies cannot be statically extracted warnings in a Windows build - I don't see this in Ubuntu:

Paul@Ryzen5 MINGW64 /d/dev/git_repos/intern/intern (issue-927)
$ npm run clean && npm run build

> intern@4.3.0-pre clean D:\dev\git_repos\intern\intern
> intern-dev-clean

2:12:30 PM - Removing _build
2:12:30 PM - Removing _tests
2:12:30 PM - Removing _examples
2:12:30 PM - Done cleaning

> intern@4.3.0-pre build D:\dev\git_repos\intern\intern
> intern-dev-clean && concurrently intern-dev-build intern-dev-api

2:12:31 PM - Removing _build
2:12:31 PM - Removing _tests
2:12:31 PM - Removing _examples
2:12:31 PM - Done cleaning
[0] 2:12:32 PM - Copying src/browser/remote.html to _build
[0] 2:12:32 PM - Copying src/favicon.png to _build
[0] 2:12:32 PM - Copying src/index.html to _build
[0] 2:12:32 PM - Copying src/lib/reporters/html/html.styl to _build
[0] 2:12:32 PM - Copying src/lib/reporters/html/variables.styl to _build
[0] 2:12:32 PM - Copying src/loaders/globals.d.ts to _build
[0] 2:12:32 PM - Copying tests/globals.d.ts to _tests
[0] 2:12:32 PM - Copying tests/selftest.local.intern.js to _tests
[0] 2:12:32 PM - Copying tests/support/mocking.d.ts to _tests
[0] 2:12:32 PM - Copying tests/unit/data/lib/executors/intern.js to _tests
[0] 2:12:32 PM - Copying tests/unit/data/lib/reporters/JUnit/expected.xml to _tests
[0] 2:12:32 PM - Copying tests/unit/data/lib/util/bar.js to _tests
[0] 2:12:32 PM - Copying tests/unit/data/lib/util/baz.js to _tests
[0] 2:12:32 PM - Copying tests/unit/data/lib/util/foo.js to _tests
[0] 2:12:32 PM - Copying src/browser/remote.html to _tests
[0] 2:12:32 PM - Copying src/favicon.png to _tests
[0] 2:12:32 PM - Copying src/index.html to _tests
[0] 2:12:32 PM - Copying src/lib/reporters/html/html.styl to _tests
[0] 2:12:32 PM - Copying src/lib/reporters/html/variables.styl to _tests
[0] 2:12:32 PM - Copying src/loaders/globals.d.ts to _tests
[0] 2:12:32 PM - Copying package.json to _build\src
[0] 2:12:32 PM - Copying README.md to _build\src
[0] 2:12:32 PM - Copying LICENSE to _build\src
[0] 2:12:32 PM - Linting .
[1] 2:12:32 PM - Generating API data
[0] 2:12:35 PM - Compiling .
[1] 2:12:38 PM - Scrubbing file paths
[1] 2:12:38 PM - Wrote API data to docs\api.json
[1] intern-dev-api exited with code 0
[0] 2:12:41 PM - Linting tests
[0] 2:12:45 PM - Compiling tests
[0] 2:12:53 PM - Linting tests/examples
[0] 2:12:55 PM - Compiling tests/examples
[0] 2:13:13 PM - [webpack]     Time: 14303ms
[0] 2:13:13 PM - [webpack]     Built at: 06/26/2018 2:13:13 PM
[0] 2:13:13 PM - [webpack]     Entrypoint intern [big] = intern.js
[0] 2:13:13 PM - [webpack]     Entrypoint remote [big] = remote.js
[0] 2:13:13 PM - [webpack]     Entrypoint config [big] = config.js
[0] 2:13:13 PM - [webpack]     WARNING in ./node_modules/@dojo/shim/object.js
[0] 2:13:13 PM - [webpack]     3:24-31 Critical dependency: require function is used in a way in which dependencies cannot be statically extracted
[0] 2:13:13 PM - [webpack]      @ ./node_modules/@dojo/shim/object.js
[0] 2:13:13 PM - [webpack]      @ ./node_modules/@dojo/core/lang.js
[0] 2:13:13 PM - [webpack]      @ ./src/lib/common/util.ts
[0] 2:13:13 PM - [webpack]      @ ./src/browser/remote.ts
[0] 2:13:13 PM - [webpack]     WARNING in ./node_modules/@dojo/shim/global.js
[0] 2:13:13 PM - [webpack]     3:24-31 Critical dependency: require function is used in a way in which dependencies cannot be statically extracted
[0] 2:13:13 PM - [webpack]      @ ./node_modules/@dojo/shim/global.js
[0] 2:13:13 PM - [webpack]      @ ./src/browser/intern.ts
[0] 2:13:13 PM - [webpack]     WARNING in ./node_modules/@dojo/core/lang.js
[0] 2:13:13 PM - [webpack]     3:24-31 Critical dependency: require function is used in a way in which dependencies cannot be statically extracted
[0] 2:13:13 PM - [webpack]      @ ./node_modules/@dojo/core/lang.js
[0] 2:13:13 PM - [webpack]      @ ./src/lib/common/util.ts
[0] 2:13:13 PM - [webpack]      @ ./src/browser/remote.ts
...

[jason0x43]

Did you verify that tslib was present? It's a top-level dependency of intern, so it should be available in node_modules. I've seen a couple of cases recently with npm 5.x where running npm install on packages (intern and others) resulted in a node_modules that didn't actually contain all the dependencies.

[gitgrimbo]

• deleted node_modules
• fetched upstream master branch
• ran npm i
• installed cross-env
• changed script to "start": "cross-env NODE_PATH=_build node _tests/src/bin/intern.js serveOnly"
• browse to http://localhost:9000/__intern/ in Chrome

Error is:

VM52 providers_sync:4 Uncaught Error: Cannot find module "tslib".
    at webpackEmptyContext (VM52 providers_sync:2)
    at eval (VM51 xhr.js:15)
    at eval (VM51 xhr.js:3)
    at eval (VM51 xhr.js:12)
    at Object../node_modules/@dojo/core/request/providers/xhr.js (intern.js:258)
    at __webpack_require__ (intern.js:20)
    at eval (Browser.ts:5)
    at Object../src/lib/executors/Browser.ts (intern.js:1278)
    at __webpack_require__ (intern.js:20)
    at eval (intern.ts:4)
providers_sync:4 Uncaught Error: Cannot find module "tslib".
    at webpackEmptyContext (VM52 providers_sync:2)
    at eval (VM51 xhr.js:15)
    at eval (VM51 xhr.js:3)
    at eval (VM51 xhr.js:12)
    at Object../node_modules/@dojo/core/request/providers/xhr.js (config.js:247)
    at __webpack_require__ (config.js:20)
    at eval (util.ts:3)
    at Object../src/lib/browser/util.ts (config.js:525)
    at __webpack_require__ (config.js:20)
    at eval (config.ts:4)
(index):26 Uncaught ReferenceError: internConfig is not defined
    at (index):26

index:26 is:

		<!-- Load intern code in the body because Html reporter needs a DOM -->
		<script src="browser/intern.js"></script>
		<script src="browser/config.js"></script>
		<script>
-->		internConfig.getConfig()
			.then(function (result) {

There are no network errors (404s and the like), only this console error.

[jason0x43]

I've been able to reproduce this. Setting NODE_PATH doesn't affect it one way or the other. The issue seems to be that the test server can't find modules on Windows.

[gitgrimbo]

Hi. I've

• checked out the 4.2.2 release
• done a clean install of node_modules
• run npm start

and am still seeing the same error at http://localhost:9000/__intern/.

[jason0x43]

I tried this on a Windows 10 system with a couple different versions of node and npm, and the tests are loading and running properly:

1. Made a new clone of Intern
2. Checked out 4.2.2
3. npm install
4. npm run build
5. npm start
6. Open http://localhost:900/__intern/

Did you verify that tslib is present in your node_modules?

[gitgrimbo]

Running the npm run build step seemed to be what I missed out, thanks.