Sometimes appveyor.exe returns exit code 259

rualark's Avatar


09 Aug, 2017 06:45 PM


Error code 259: appveyor UpdateTest "configs\GenCF1\" -Framework MSTest -FileName MGen.exe -Duration 5199 -Outcome Passed -ErrorMessage "0: OK" -ErrorStackTrace "" >> autotest\run.log 2>&1

It is interesting, that almost the same commands sometimes give exit code 0. It seems that this exit code is returned randomly. Also I found out that cmd.exe also can return this exit code:
Error code 259: cmd.exe echo Test >> autotest\run.log

Here is an example build with this error:

  1. Support Staff 1 Posted by Ilya Finkelshte... on 11 Aug, 2017 02:08 AM

    Ilya Finkelshteyn's Avatar

    This looks like concurrency issue. I would recommend to try call Handle as described here.

Reply to this discussion

Internal reply

Formatting help / Preview (switch to plain text) No formatting (switch to Markdown)

Attaching KB article:


Attached Files

You can attach files up to 10MB

If you don't have an account yet, we need to confirm you're human and not a machine trying to post spam.

Keyboard shortcuts


? Show this help
ESC Blurs the current field

Comment Form

r Focus the comment reply box
^ + ↩ Submit the comment

You can use Command ⌘ instead of Control ^ on Mac