Powershell not compiling c# code into .exe

Question

I have some code that is not compiling to an .exe file in PowerShell,

  $csharp = '#CSharp code goes here'
  $tmpFile = [IO.Path]::GetTempFileName() + ".cs" # Creates Temp file
  Out-file -FilePath $tmpFile -InputObject $csharp # sets content
  Start-Process -FilePath C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe -ArgumentList "/out:Launcher.exe" # Starts csc

When the script loads there is a popup with csc.exe that closes within milliseconds. Could anyone help? Thanks, CollinScripter

I don't see how you are specifying that tmp file into the csc command, you are just expecting an output with no input. Also add a bugreport to see the error. "/addmodule:$tmpFile /out:Launcher.exe bugreport:c:\WhyItFailed.txt Try that and report back — Knuckle-Dragger
– Knuckle-Dragger, Commented Dec 15, 2013 at 15:53

Knuckle-Dragger · Accepted Answer · 2013-12-15 15:56:48Z

1

Works better once you add an input. I generated a fatal error CS2008: No inputs specified with your snippet.

  $csharp = '#CSharp code goes here'
  $tmpFile = [IO.Path]::GetTempFileName() + ".cs" # Creates Temp file
  Out-file -FilePath $tmpFile -InputObject $csharp # sets content

Start-Process -FilePath C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe -ArgumentList "/addmodule:$tmpFile /out:Launcher.exe" # Starts csc

answered Dec 15, 2013 at 15:56

Knuckle-Dragger

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5 Comments

Collin Over a year ago

Now I get an corrupt file error. fatal error CS0009: Metadata file 'c:\Users\CollinScripter\AppData\Local\Temp\tmp1795.cs' could not be opened -- 'File is corrupt.'

Knuckle-Dragger Over a year ago

Might be in the $csharp variable, are you sure it is a fully functioning c# app. Does the .cs temp file match the output desired (open with notepad.exe)

Knuckle-Dragger Over a year ago

Start-Process -FilePath C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe -ArgumentList "/out:Launcher.exe $tmpFile" # Starts csc

If that fixes it, I will edit answer.

Collin Over a year ago

c:\Users\CollinScripter\AppData\Local\Temp\tmpD546.cs(2,13): error C S0116: A namespace cannot directly contain members such as fields or methods c:\Users\CollinScripter\AppData\Local\Temp\tmpD546.cs(3,24): error CS1518: Expected class, delegate, enum, interface, or struct

Collin Over a year ago

Don't know really how to do that.

Lee · Accepted Answer · 2013-12-15 15:45:54Z

1

To prevent the new window from appearing you can use the NoNewWindow switch:

Start-Process -FilePath C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe -NoNewWindow -ArgumentList "/out:Launcher.exe"

Note your current command is not passing the source file to compile.

answered Dec 15, 2013 at 15:45

Lee

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