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edsrzf opened this issue Dec 15, 2020 · 1 comment · Fixed by #42050
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TypeError: host.isKnownTypesPackageName is not a function #41962

edsrzf opened this issue Dec 15, 2020 · 1 comment · Fixed by #42050
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Bug A bug in TypeScript Help Wanted You can do this PursuitFellowship Help wanted from Pursuit fellowship; others please avoid until Dec 19
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@edsrzf
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edsrzf commented Dec 15, 2020

TypeScript Version: 4.1.3

Search Terms: getTypesPackageNameToInstall, isKnownTypesPackageName

Code

Because this happens while using the API, I've created a GitHub repo that reproduces this issue: https://github.com/edsrzf/ts-codefix-repro

Note that I have not been able to reproduce it within an editor, such as VSCode.

Expected behavior:

LanguageService.getCodeFixesAtPosition returns code fixes and does not throw an exception when passed valid parameters.

Actual behavior:

LanguageService.getCodeFixesAtPosition throws an exception with this stack trace:

TypeError: host.isKnownTypesPackageName is not a function
    at getTypesPackageNameToInstall (/Users/edsrzf/projects/ts-new-repro/node_modules/typescript/lib/typescript.js:138180:25)
    at Object.getCodeActions (/Users/edsrzf/projects/ts-new-repro/node_modules/typescript/lib/typescript.js:138144:40)
    at /Users/edsrzf/projects/ts-new-repro/node_modules/typescript/lib/typescript.js:134099:77
    at Object.flatMap (/Users/edsrzf/projects/ts-new-repro/node_modules/typescript/lib/typescript.js:707:25)
    at Object.getFixes (/Users/edsrzf/projects/ts-new-repro/node_modules/typescript/lib/typescript.js:134099:23)
    at /Users/edsrzf/projects/ts-new-repro/node_modules/typescript/lib/typescript.js:147608:35
    at Object.flatMap (/Users/edsrzf/projects/ts-new-repro/node_modules/typescript/lib/typescript.js:707:25)
    at Object.getCodeFixesAtPosition (/Users/edsrzf/projects/ts-new-repro/node_modules/typescript/lib/typescript.js:147606:23)
    at main (/Users/edsrzf/projects/ts-new-repro/script.js:9:37)

Playground Link: No playground link, but again there's this GitHub repo: https://github.com/edsrzf/ts-codefix-repro

Related Issues: #18217
@RyanCavanaugh RyanCavanaugh added the Bug A bug in TypeScript label Dec 15, 2020
@RyanCavanaugh RyanCavanaugh added this to the Backlog milestone Dec 15, 2020
@RyanCavanaugh RyanCavanaugh added the Help Wanted You can do this label Dec 15, 2020
@sandersn sandersn added the PursuitFellowship Help wanted from Pursuit fellowship; others please avoid until Dec 19 label Dec 15, 2020
@chenjigeng chenjigeng mentioned this issue Dec 19, 2020
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@chenjigeng
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chenjigeng commented Dec 19, 2020 •
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@edsrzf This PR fixes the problem of error reporting, but if you want to return code fixes correctly, You should ask the author
of @ts-morph to add the isKnownTypesPackageName function. I have submitted another PR to @TS-Morph to support this option, you can help to have a look

@chenjigeng chenjigeng mentioned this issue Dec 19, 2020
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fix: host.isKnownTypesPackageName maybe undefined chenjigeng/TypeScript
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@sandersn @edsrzf @RyanCavanaugh @chenjigeng