VSCode error when launching: The following argument was not expected: /c

Development Programming & Scripting
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1

When trying to launch my C++ project from VSCode I get an error popup stating:

The following argument was not expected: /c
Run with --help for more information

Another error pops up in the bottom right with:

Unable to start program '....<path to UnrealEditor.exe>'. Unable to start the Microsoft Visual Studio Debug Console.

The log file just shows this:

Generated code is up to date.
Target is up to date
Total execution time: 0.40 seconds
WriteFileIfChanged() wrote 0 changed files of 0 requested writes.
Timeline:

[ 0.000]
[ 0.000](+0.399) <unknown>
[ 0.399]

I’ve found only one possibly promising thread on the internet: https://www.reddit.com/r/VisualStudio/comments/vacmua/vs2022_unable_to_debug_console_programs/

Seems it might be related to environment variables being too long for the MS Debugger?

This happens on a fresh new empty C++ project as well.
Any ideas?

2

Try to disable your firewall & antivirus too.

Did you install VScode and unreal in C and your unreal project in it default folder c document ?

Yes it could be related to an environment variable.

(personal pref) i suggest using visual studio, my friend had lot of issues with vscode and seem to catch less user error compared to visual studio such as using reserve word name.

3

Disabling antivirus & firewall, didn’t help unfortunately.

Reverting to a previous version of VSCode resolved the issue.

1 Like
4

There’s an issue at VSCode’s github describing a similar problem to ours (issue here). It seems that the problem is at the launch.json file. The “console”: “externalTerminal” command is not valid anymore. Changing it to “console”: “internalConsole” works, even though it doesn’t open an external window like the old command.

11 Likes
5

This is the solution. For those coming from Google, it might be also in the file: .code-workspace.

4 Likes
6

I can confirm - this worked for me.

7

It wokrs for me!
I’m using UE4.26, and I’ve changed the launch.json as below:

From

"externalConsole": true,

To:

"console": "integratedTerminal",
2 Likes
8

I created a temporary extension to fix this. It also has a Revert command. This extension shouldn’t be needed once VSCode fixes the bug.

https://github.com/boocs/unreal-console-fix/

1 Like