Failed to run diagnostics lintr

Describe the bug I couldn’t decide if this was a languageserver issue or not, sorry. Every time I open a new file, the top line shows the error Failed to run diagnostics: lintr.

Expected behavior I expect the files lints to be correctly checked and any issues display in the problems tab.

Environment (please complete the following information):

• OS: macOS
• Version: 1.45.1 Commit: 5763d909d5f12fe19f215cbfdd29a91c0fa9208a Date: 2020-05-14T08:33:47.663Z Electron: 7.2.4 Chrome: 78.0.3904.130 Node.js: 12.8.1 V8: 7.8.279.23-electron.0 OS: Darwin x64 19.4.0
• R Version: 3.6.3
• vscode-R version: 1.3.0
• languageserver version: 0.3.5
• lintr version: 2.0.1

Additional context I see the following in the diagnostics but I am not sure if it is related.

diagnostics_task: <callr_status_error: callr subprocess failed: attempt to apply non-function>
 in process 
-->
<callr_remote_error in linters[[linter]](expr):
 attempt to apply non-function>
 in process 78394 

I know this is all very vague, please let me know if you need any additional information.

[gowerc]

Not sure what a solution is but you can disable lintr to suppress the error message I think by setting this setting in your json settings file :

"r.lsp.diagnostics": false

[renkun-ken]

@nathaneastwood The object_usage_linter seems problematic, see https://github.com/jimhester/lintr/issues/482.