I recently installed the Visual Studio 11 Beta, and I'm trying to update an existing 4.0 project to use 4.5. In the program it compiles some dynamically generated code using CSharpCodeProvider
.
/// <summary>
/// Compile and return a reference to the compiled assembly
/// </summary>
private Assembly Compile()
{
var referencedDlls = new List<string>
{
"mscorlib.dll",
"System.dll",
"System.Core.dll",
};
referencedDlls.AddRange(RequiredReferences);
var parameters = new CompilerParameters(
assemblyNames: referencedDlls.ToArray(),
outputName: GeneratedDllFileName,
// only include debug information if we are currently debugging
includeDebugInformation: Debugger.IsAttached);
parameters.TreatWarningsAsErrors = false;
parameters.WarningLevel = 0;
parameters.GenerateExecutable = false;
parameters.GenerateInMemory = false;
parameters.CompilerOptions = "/optimize+ /platform:x64";
string[] files = Directory.GetFiles(GenerationDirectory, "*.cs");
var compiler = new CSharpCodeProvider(
new Dictionary<string, string> { { "CompilerVersion", "v4.5" } });
var results = compiler.CompileAssemblyFromFile(parameters, files);
if (results.Errors.HasErrors)
{
string firstError =
string.Format("Compile error: {0}", results.Errors[0].ToString());
throw new ApplicationException(firstError);
}
else
{
return results.CompiledAssembly;
}
}
The problem comes when I changed the CompilerVersion
from { "CompilerVersion", "v4.0" }
to { "CompilerVersion", "v4.5" }
I now get an exception
Compiler executable file csc.exe cannot be found.
Is specifying CompilerVersion
the wrong way to tell it to use 4.5? Will compiling it as v4.5 even make a difference since the code won't be using any new 4.5 specific features?
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