Browserify require('typescript) error on windows

[DavidGriswoldTeacher]

I do not know how to make a self-contained report of this bug, because I don't really know what's causing it. The code below is the javascript I'm using that is creating the bug.

let ts = require("typescript");
...
let tsAnswer = ts.transpile(answer);

Expected behavior:
I can transpile code for an online playground-type thing (specifically a typescript version of CodingJS from https://github.com/the-winter/codingjs
Actual behavior:
I get an error and can't even open the page. The error is:
TypeError: ts.perfLogger.logInfoEvent is not a function

Platform Windows 10

I was able to solve this problem by downgrading typescript in the project to version 3.5.3. I suspect the issue comes from #32612 . It's possible I need to add a new package, but the code is not working as is, which is a bug.

[weswigham]

It's a fault on our part - adding "@microsoft/typescript-etw": false into our browser field does prevent the bundler from attempting to bundle it, but rather than returning undefined or throwing like one may expect on a require failure, it just returns an empty object. 🤦‍♀

The fix should be easy for us.

[asakhuj]

Hi ! I am still facing the issue ! My project was working fine few days back. Now I am getting this error on browser

TypeError: ts.perfLogger.logInfoEvent is not a function
(anonymous function)
/node_modules/typescript/lib/typescript.js:3418
3415 |
3416 |
3417 | ts.perfLogger = etwModule ? etwModule : nullLogger;

3418 | ts.perfLogger.logInfoEvent("Starting TypeScript v" + ts.versionMajorMinor + " with command line: " + JSON.stringify(process.argv));
3419 | })(ts || (ts = {}));
3420 | /* @internal */
3421 |

[weswigham]

What TS version are you using? This fix went out in the 3.6.3 patch.

[asakhuj]

I was using 3.6.2 ! Upgraded to 3.6.3 now ! It's working. Thank you