1.5.0 Framework - FatalError: error TS5023: Unknown compiler option 'typescript'.

[PooLP]

Category

• Question
• Typo
• Bug
• Additional article idea

Hi,
With latest Visual Studio Code Insiders and a hellowold Webpart on 1.5.0 Frameworks, I have this warning, after second save (I have no error after first launch of Gulp task) :

Warning - [tslint] Unable to create a TS program for TSLint. Some lint rules might not work correctly. Error FatalError: error TS5023: Unknown compiler option 'typescript'.

Do you also have this warning?

Thanks

[PooLP]

After more test on cmd (outside of VSC) i have same warning on fresh initialisation of helloworld (application customizer)

I run this on a PC with Windows 10 (1803), 64bits, node 8.10.0 & npm 5.6.0

If i'm run a 1.4.1 SPFx project, i don't have this warning

[GolaWaya]

This is actually a problem with the microsoft/gulp-core-build-typescript which SharePoint framework uses to compile. See microsoft/rushstack#712 I have included a fix in the issue.

[VesaJuvonen]

The issue has been fixed in the web-build-tools, so it should be now resolved. Sorry for the inconvenience.

[StfBauer]

@VesaJuvonen The issue still exists in 1.5.1.

[praveenbattula]

Yes, it still exists with latest spfx version. Will look for next beta version.

[PooLP]

@VesaJuvonen The issue is fixed in 1.6.0.

[msft-github-bot]

Issues that have been closed & had no follow-up activity for at least 7 days are automatically locked. Please refer to our wiki for more details, including how to remediate this action if you feel this was done prematurely or in error: Issue List: Our approach to locked issues