typescript-notebook
                                
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                        Typescript doesn't seem to work.

I have the same issue. It used to work perfectly, and I did not change anything and it suddenly stopped working out of no where on all my computers and all my projects no matter the setup.
I can run the code just fine and it works, but in the editor node_modules imports do not work.
The issue does not appear to be the same as these, since npm imports are broken and I am not attempting to do anything cross-cell.
https://github.com/DonJayamanne/typescript-notebook/issues/57 https://github.com/DonJayamanne/typescript-notebook/issues/74#issuecomment-1229406059
@paustint I had this issue with VSCode on both this repo's extension and tslab. I downgraded my VSCode to 1.78 and this seems to have resolved the issue
EDIT: Added a PR for VS Code to fix this https://github.com/microsoft/vscode/pull/186812
I am having this issue
It seems to be vscode's own bug.
The vscode use a virtual path to represent cells in a notebook file (you can see the virtual path in the log by enable "typescript.tsserver.log": "verbose" and open the log file mentioned in typescript extension output).
https://github.com/microsoft/vscode/blob/f6bc90dc1f367dcd596209ae62add169b11845cf/extensions/typescript-language-features/src/typescriptServiceClient.ts#L714C76-L718
Which, unfortunately broke relative path.
Because the typescript language server would assume your file under other (relative path) places
And thus no relative path would work.
I wonder if change the vscode to append inMemoryResourcePrefix, scheme and authority in the file name instead will fix the path. But I have no experience to edit vscode itself. So I don't know how to test it yet.