Compiling VB Code With CodeDom

Question

Read up on it, couldn't find anything that worked for me. Basically, I have a file called SourceCode.vb in my resources. I'm trying to use:

Dim objCodeCompiler As System.CodeDom.Compiler.ICodeCompiler = New VBCodeProvider().CreateCompiler
Dim objCompilerParameters As New System.CodeDom.Compiler.CompilerParameters()
objCompilerParameters.ReferencedAssemblies.Add("System.dll")
objCompilerParameters.ReferencedAssemblies.Add("System.Windows.Forms.dll")
objCompilerParameters.ReferencedAssemblies.Add("Microsoft.VisualBasic.dll")
objCompilerParameters.ReferencedAssemblies.Add("System.Drawing.dll")
objCompilerParameters.ReferencedAssemblies.Add("System.Data.dll")
objCompilerParameters.ReferencedAssemblies.Add("System.Deployment.dll")
objCompilerParameters.ReferencedAssemblies.Add("System.Xml.dll")
objCompilerParameters.GenerateExecutable = True
objCompilerParameters.GenerateInMemory = False
objCompilerParameters.CompilerOptions = "/target:winexe"
objCompilerParameters.OutputAssembly = "C:\"
Dim strCode As String = My.Resources.SourceCode.ToString
Dim objCompileResults As System.CodeDom.Compiler.CompilerResults = objCodeCompiler.CompileAssemblyFromSource(objCompilerParameters, strCode)
If objCompileResults.Errors.HasErrors Then
    MsgBox("Error: Line>" & objCompileResults.Errors(0).Line.ToString & ", " & objCompileResults.Errors(0).ErrorText)
    Exit Sub
End If

I need it to compile the code and make the file and place it in C:\ - For some reason its not working. Error is:

error: line>0, no input sources specified

Any ideas? Thanks in advance.

Edit: Problem was that I needed to add an actual name for the file after the output. Thanks for the help Hans.

Are you sure your source code is actually contained in strCode? msdn.microsoft.com/en-us/library/a0kc0z48(v=vs.90).aspx — Whitey
– Whitey, Commented Aug 21, 2015 at 8:21
Well, that's not a fantastic error message. It is actually complaining about your OutputAssembly assignment. You have to specify a file name, not a directory name. Like "c:\test.exe". Which you should not use either, you cannot write to the root directory of the c: drive. Better if you omit it completely, you'll get an assembly in the TEMP directory. — Hans Passant
– Hans Passant, Commented Aug 21, 2015 at 8:46

Whitey · Accepted Answer · 2015-08-21 08:47:37Z

2

It's actually because you are setting OutputAssembly to a location when it expects an assembly name. It should be:

objCompilerParameters.OutputAssembly = "AssemblyName.exe"

If you want to set the location of the output assembly, add it to your compiler options.

objCompilerParameters.CompilerOptions = "/target:winexe /out:C:\\AssemblyName.exe"

Although, I believe if you want to write to the C: drive, you will need to run your program as administrator.

answered Aug 21, 2015 at 8:47

Whitey

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