fix travis

Author: dsyme

src/fsharp/FSharp.Compiler.Service/FSharp.Compiler.Service.fsproj

@@ -661,7 +661,7 @@
   <Target Name="AfterBuild" Condition="Exists('..\..\..\.paket\paket.exe')">
     <CopyRuntimeDependencies OutputPath="$(OutDir)" TargetFramework="$(TargetFrameworkIdentifier) - $(TargetFrameworkVersion)" ProjectsWithRuntimeLibs="System.Threading" />
   </Target>
-  <Import Project="$(SolutionDir)\packages\FSharp.SRGen.Build.Tasks.$(FsSrGenBuildTasksVersion)\content\FSharp.SRGen.targets" />
+  <Import Project="$(SolutionDir)\packages\FSharp.SRGen.Build.Tasks\content\FSharp.SRGen.targets" />
   <Import Project="$(FsLexYaccPath)\FsLexYacc.targets" />
   <Import Project="$(SolutionDir)\.paket\paket.targets" />
   <Choose>