deno: Property 'utime' does not exist on type 'typeof Deno'

I’m trying the following script and I get a few errors.

index.ts

import { exists } from "https://deno.land/std/fs/mod.ts";

const found = await exists('/folder');
console.log('Found:', found);

Error:

error TS2339: Property 'utime' does not exist on type 'typeof Deno'.
    await Deno.utime(dest, statInfo.atime, statInfo.mtime);
               ~~~~~
    at https://deno.land/std/fs/copy.ts:90:16

error TS2339: Property 'utimeSync' does not exist on type 'typeof Deno'.
    Deno.utimeSync(dest, statInfo.atime, statInfo.mtime);
         ~~~~~~~~~
    at https://deno.land/std/fs/copy.ts:101:10

error TS2339: Property 'symlink' does not exist on type 'typeof Deno'.
  await Deno.symlink(originSrcFilePath, dest, type);
             ~~~~~~~
    at https://deno.land/std/fs/copy.ts:114:14

error TS2339: Property 'utime' does not exist on type 'typeof Deno'.
    await Deno.utime(dest, statInfo.atime, statInfo.mtime);
               ~~~~~
    at https://deno.land/std/fs/copy.ts:119:16

error TS2339: Property 'symlinkSync' does not exist on type 'typeof Deno'.
  Deno.symlinkSync(originSrcFilePath, dest, type);
       ~~~~~~~~~~~
    at https://deno.land/std/fs/copy.ts:132:8

error TS2339: Property 'utimeSync' does not exist on type 'typeof Deno'.
    Deno.utimeSync(dest, statInfo.atime, statInfo.mtime);
         ~~~~~~~~~
    at https://deno.land/std/fs/copy.ts:137:10

error TS2339: Property 'utime' does not exist on type 'typeof Deno'.
    await Deno.utime(dest, srcStatInfo.atime, srcStatInfo.mtime);
               ~~~~~
    at https://deno.land/std/fs/copy.ts:157:16

error TS2339: Property 'utimeSync' does not exist on type 'typeof Deno'.
    Deno.utimeSync(dest, srcStatInfo.atime, srcStatInfo.mtime);
         ~~~~~~~~~
    at https://deno.land/std/fs/copy.ts:185:10

error TS2339: Property 'link' does not exist on type 'typeof Deno'.
  await Deno.link(src, dest);
             ~~~~
    at https://deno.land/std/fs/ensure_link.ts:28:14

error TS2339: Property 'linkSync' does not exist on type 'typeof Deno'.
  Deno.linkSync(src, dest);
       ~~~~~~~~
    at https://deno.land/std/fs/ensure_link.ts:52:8

error TS2339: Property 'symlink' does not exist on type 'typeof Deno'.
  await Deno.symlink(src, dest, srcFilePathType);
             ~~~~~~~
    at https://deno.land/std/fs/ensure_symlink.ts:31:14

error TS2339: Property 'symlinkSync' does not exist on type 'typeof Deno'.
  Deno.symlinkSync(src, dest, srcFilePathType);
       ~~~~~~~~~~~
    at https://deno.land/std/fs/ensure_symlink.ts:58:8

Found 12 errors.

deno 1.0.0-rc1 v8 8.2.308 typescript 3.8.3

About this issue

Original URL
State: closed
Created 4 years ago
Reactions: 9
Comments: 16 (9 by maintainers)

Most upvoted comments

It is not ideal that some modules in std require --unstable (especially mod.ts files).

Perhaps it makes sense to separate/group path/mod.ts and path/unstable.ts?

At the moment if I want to use path.join, I’m out of luck, even though it doesn’t - as far as I can tell - itself use an unstable api. That doesn’t really make sense.

+18

hayd on May 12, 2020

These features are now under the --unstable flag… To enable them, deno run --unstable.

+11

kitsonk on May 9, 2020

https://github.com/denoland/deno/issues/5630 <- there was a similar issue.

I think there are two main culprits here:

Having to use --unstable in std packages is weird. I dislike that behaviour with passion.
Documentation pages like this one https://deno.land/std/fs use untagged versions in examples.

tkgalk on May 21, 2020

Please update README to specify deno run --unstable is required.

CarlosOnline on May 10, 2020

What if we made the missing --unstable flag cause a runtime error instead of at compile time? Would that be better?

I had an idea on how to implement that, link here… I might have posted it in the wrong place though. Basically what it would do is throw an error if you try to use an unstable API without the unstable flag.

What’s nice about it is that you don’t need to maintain a list of unstable API names, and it also doesn’t require trapping the diagnostic messages and doing a string search and replace

ferm10n on May 22, 2020

@Driky I believe you need to specify the standard library’s version like this:

import {
  existsSync,
  readJsonSync,
} from "https://deno.land/std@0.51.0/fs/mod.ts";

mickaelvieira on May 21, 2020

Better docs were added in https://github.com/denoland/deno/pull/5456

bartlomieju on Jun 16, 2020

@mickaelvieira thank you I’ll test that EDIT: that works

Driky on May 21, 2020