[vue-tsc] .d.ts files are not emitted after upgrade from 0.33.9

[Alexis2004]

I am developing a library of Vue components. To export type declarations during the build, we use the command vue-tsc --declaration --emitDeclarationOnly.

Everything worked well on vue-tsc@0.33.9. After upgrading to 0.34.1, no types are exported anymore, and there are no errors or warnings in the terminal. I observe the same behavior on the latest version of the library at the moment (0.39.4). I was unable to check the build for version 0.34.0, due to the previously fixed bug.

How to reproduce the issue:

1. Checkout the demo repository git clone git@github.com:Alexis2004/vue-tsc-dts-issue.git.
2. Execute command yarn install && yarn run dts in the project root.
3. Make sure that the dist/ folder with .d.ts files is not created.
4. Downgrade the vue-tsc library in the package.json file to version 0.33.9.
5. Rerun command yarn install && yarn run dts.
6. Make sure that the dist/ folder with .d.ts files appears in the project root.

[johnsoncodehk]

You can remove "noEmitOnError": true to avoid the problem, emit is block by volar internal errors currently.

[Alexis2004]

Thank you very much! The proposed workaround with removing noEmitOnError helped me – now .d.ts files are generated successfully (I've tried to build using the latest vue-tsc version).