clj-kondo 2026-02-10

I really don't remember if this worked before, but I get Unresolved var: js/Date. [unresolved-var] style errors on all javascript stuff in my cljs files. Is it some recent regression, or did this never work and I don't remember it?

try from the command line

$ clj -M:clj-kondo/dev --lint - --lang cljs <<< '(js/Date.)'
linting took 30ms, errors: 0, warnings: 0

it's very unlikely that this is a regressions since it's test well in CI

you sure the above works?

I get :clojure.error/cause "--lint (No such file or directory)"

(on the /tmp trace)

it works on my machine, I have a dev alias for clj-kondo

you can you just use the command line binary to test or whatever other way you have clj-kondo installed

I use clj-kondo through clojure-lsp

just try this:

clj -Sdeps '{:deps {clj-kondo/clj-kondo {:mvn/version "RELEASE"}}}' -M -m clj-kondo.main --lint

are you sure you are not editing a .cljc file?

I can reproduce the problem:

> clj -Sdeps '{:deps {clj-kondo/clj-kondo {:mvn/version "RELEASE"}}}' -M -m clj-kondo.main --lang cljs --lint path/to/some/file.cljs
path/to/some/file.cljs:32:37: warning: Unresolved var: js/Date.
path/to/some/file.cljs:35:29: warning: Unresolved var: js/fetch
linting took 92ms, errors: 0, warnings: 2

nice that you can repro it. can you make a repro for me, the smallest one possible?

I'll try to make one, for now I'm trying previous releases to see if the problem stops

do you have an alias like :as js in your file maybe?

try the repro also outside of your project. it may have to do something with a cache. please don't throw away your cache, then we can't reproduce the issue anymore

I'll be back later

insteresting thing

I have js references above but no warnings on them

the only js/* references that have a warning are inside a nxr/register-effect! macro

so maybe this is the culpit

its a cache problem

i copied my project folder, did the cli test above, got warnings, purged the .clj-kondo/.cache directory and run again the cli test, no warnings this time

It also seems that .clj-kondo/.cache/v1/cljc/ causes it

found the exact problematic file too:

> cat .clj-kondo/.cache/v1/cljc/.transit.json
["^ ","~:filename",null,"~:clj",["^ "],"~:cljs",["^ "]]

if I rm this file, the warnings go away

it doesn't really make sense though why a .transit.json file without a namespace in the filename exists, looking at the other files in the same directory

seems like a bug somewhere. if you re-initialize clojure-lsp in your project, does the bug get re-introduced?

what do you mean by re-initialize clojure-lsp?

restart your workspace

yes the bug persists across editor restarts

also after removing the file I mean

no it doesn't re-appear

ok, if it does let me know...

can I remove the troubling cache file now from my main project?

or do you need any more tests?

yeah we know enough now

maybe you can repro this too now that I have the path and the contents above

but I suppose you question still remains why this file was there in the first place

yeah, doesn't ring a bell right now