<t>Edited after Ian Robertson Response.<br/>
<br/>
The problem with the compiler is fixed in a newer version. You can try to reinstall the compiler first before you edit your csproj file.<br/>
<br/>
Update-Package Microsoft.CodeDom.Providers.DotNetCompilerPlatform -r<br/>
<br/>
```<br/><br/>
*Original:*<br/>
<br/>
The problem with the default VS2015 templates is that the compiler isn't actually copied to thetfr\bin\roslyn` directory, but rather the {outdir}\roslyn\ directory<br/>
<br/>
Add this code in your .csproj file:<br/>
<br/>
`<br/>
<br/>
<br/>
<br/>
<br/>
<br/>
<br/>
<br/>
```</t>
