How can I avoid the "an import path cannot end with .ts extension" error in VSCode?

Question

I'm using Visual Studio Code to write Deno programs.

The import statement in Deno contains the .ts extension, e.g.

import { Application } from "https://deno.land/x/oak/mod.ts";

which is marked as a problem in VS-Code, error code ts(2691):

Despite the shown error, the program works fine, but I want to avoid the error message, because there's nothing wrong.

How can this be solved?

Sinkage

Answer 1

This can be solved by installing and configuring the Deno Extensions for VSCode.

Press CtrlShiftX to open the extensions view, then type "deno" and click on the entry name "Deno - Deno support for VSCode":

and install it.

After installation, you can choose any one of following methods:

• Go to settings: (Ctrl, or　Cmd, on MacOSX), select "Extensions>Deno" and click on the checkbox under "Deno:Enable" and "Deno:lint"
  • Just enable workspace settings only
  • Don't enable User settings if you have other Non node projects

• Or, as @hong4rc mentioned, open the Command Palette(Ctrl+Shift+P) and select Deno:initialize

Either method creates a folder named .vscode and a file settings.json with the following lines in your workspace project ( workspace settings):

{
  "deno.enable": true,
  "deno.lint": true
}

In both cases, after restarting Visual Studio Code, the error should be gone.

Sinkage

You can run Ctrl+Shift+P and type deno init (it auto enable another setting, just remove if you want) – Rompers

@Rompers thanks, so you can switch on nd off the extension with a command.I tried but got an error message "Init failed, Source: Deno (Extension)". Any idea why? – Sinkage

Try this: disable tslint(if you installed), reopen VScode, check your project in the normal disk (!= C) – Rompers

Wow! Works just as expected! – Simons

this does not resolve it for me. – Gallice

As @Rompers mentioned, Ctrl+Shift+P and type deno: initialize workspace resolved for me. – Vicechairman

I was able to resolve this by disabling typescript.tsserver.experimental.enableProjectDiagnostics in the workspace. – Jurdi

Answer 2

Since this is the first question that pops up in search I will add my answer here although it was not related to Deno, but with Webdriver.

Adding allowImportingTsExtensions in tsconfig.json solved the issue.

My full answer here: https://mcmap.net/q/275674/-why-must-i-import-ts-files-as-js-files-in-this-case

Heteronym