BundlerMinifier does not wait for Web-compiler

Question

I am building a Continuous Integration and Deployment steps on VS online team services. This is an asp.net core project which is using web-compiler to compile sass/scss files and then BundlerMinifier to bundle and minify files.

I have found this question, BundlerMinifier and WebCompiler does not output files on build on stackoverflow. This is my original problem

On the build log, I've found the following message

2017-08-03T15:02:26.7240383Z [33m[1m wwwroot/css/comsite.css was not found[0m[39m[49m

There is a scss file that generates comsite.css file of 1143 lines. but there are some calculation going on the files, so i guess this is taking some time. So my understanding is bundler is running before web-compiler generate the file. So, i tried to run compilerconfig.json before build and bundlerconfig.json after build. it didn't help. Now, I am trying to run both after build, please check the image below

The problem is I could not move the compilerconfig up before bundler. So, my question is there any way to run compiler before bundler from task runner?

Updated

As stated in the comment bundleconfig.json

[
  {
    "outputFileName": "wwwroot/css/bootstrap337.min.css",
    "inputFiles": [
      "wwwroot/lib/bootstrap/dist/css/bootstrap.css"
    ]
  },
  {
    "outputFileName": "wwwroot/css/site.min.css",
    "inputFiles": [
      "wwwroot/css/site.css"
    ]
  },
  {
    "outputFileName": "wwwroot/js/site.min.js",
    "inputFiles": [
      "wwwroot/js/site.js"
    ],
    "minify": {
      "enabled": true,
      "renameLocals": true
    }
  },
  {
    "outputFileName": "wwwroot/css/metro-all.min.css",
    "inputFiles": [
      "wwwroot/css/metro.css",
      "wwwroot/css/metro-responsive.css",
      "wwwroot/css/metro-helper.css",
      "wwwroot/css/metro-icons.css"
    ]
  },
  {
    "outputFileName": "wwwroot/js/metro-base.min.js",
    "inputFiles": [
      "wwwroot/js/metro-base.js"
    ]
  }
]

compilerconfig.json

[
  {
    "outputFile": "wwwroot/css/site.css",
    "inputFile": "wwwroot/scss/site.scss"
  },
  {
    "outputFile": "wwwroot/scss/main.css",
    "inputFile": "wwwroot/scss/main.scss"
  },
  {
    "outputFile": "wwwroot/scss/default.css",
    "inputFile": "wwwroot/scss/default.scss"
  }
]

And the build log for the web project

[command]"C:\Program Files\dotnet\dotnet.exe" build d:\a\1\s\src\SY.Manager\SY.Manager.csproj --configuration release /maxcpucount:3 2017-08-03T12:36:17.3376673Z Microsoft (R) Build Engine version 15.1.1012.6693 2017-08-03T12:36:17.3426644Z Copyright (C) Microsoft Corporation. All rights reserved. 2017-08-03T12:36:17.3426644Z 2017-08-03T12:36:18.3840789Z
2017-08-03T12:36:18.3840789Z Bundler: Begin processing bundleconfig.json 2017-08-03T12:36:18.7668697Z Minified wwwroot/css/bootstrap337.min.css 2017-08-03T12:36:18.7678702Z [33m[1m wwwroot/css/site.css was not found[0m[39m[49m 2017-08-03T12:36:19.2716108Z Minified wwwroot/js/site.min.js 2017-08-03T12:36:21.9055182Z Minified wwwroot/css/metro-all.min.css 2017-08-03T12:36:21.9095163Z Bundler: Done processing bundleconfig.json 2017-08-03T12:36:25.4501457Z BS.Data -> d:\a\1\s\src\BS.Data\bin\release\netcoreapp1.1\BS.Data.dll 2017-08-03T12:36:27.4295141Z BS.Domain -> d:\a\1\s\src\BS.Domain\bin\release\netcoreapp1.1\BS.Domain.dll 22017-08-03T12:36:36.2084047Z Controllers\ApiResourcesController.cs(308,42): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [d:\a\1\s\src\SY.Manager\SY.Manager.csproj]

2017-08-03T12:36:36.2084047Z Controllers\RolesController.cs(184,73): warning CS0618: 'ApplicationRole.RoleName' is obsolete: 'Duplicate field. Please use the Name field instead.' [d:\a\1\s\src\SY.Manager\SY.Manager.csproj]

2017-08-03T12:36:36.4348318Z SY.Manager -> d:\a\1\s\src\SY.Manager\bin\release\netcoreapp1.1\SY.Manager.dll 2017-08-03T12:36:42.5313140Z Razor view compilation for SY.Manager -> bin\release\netcoreapp1.1\SY.Manager.PrecompiledViews.dll 2017-08-03T12:36:42.5413146Z 2017-08-03T12:36:42.5413146Z Build succeeded. 2017-08-03T12:36:42.5413146Z 2017-08-03T12:36:42.5413146Z Controllers\ApiResourcesController.cs(150,42): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [d:\a\1\s\src\SY.Manager\SY.Manager.csproj] 2017-08-03T12:36:42.5423139Z 6 Warning(s) 2017-08-03T12:36:42.5423139Z 0 Error(s) 2017-08-03T12:36:42.5423139Z 2017-08-03T12:36:42.5423139Z Time Elapsed 00:00:25.12

Updated Build log

Please find the log below which was created by VSOnline Build Solution task. I have added the log for full project, but remove some details to make it as short as possible

2017-08-18T09:14:15.9528421Z Project "d:\a\1\s\SY.sln" (1) is building "d:\a\1\s\test\SY.ManagerTests\SY.ManagerTests.csproj" (11) on node 1 (default targets). 2017-08-18T09:14:15.9539325Z PrepareForBuild: 2017-08-18T09:14:15.9539325Z Creating directory "bin\Release\netcoreapp1.1\". 2017-08-18T09:14:15.9539325Z Creating directory "obj\Release\netcoreapp1.1\". 2017-08-18T09:14:17.9102914Z Project "d:\a\1\s\test\SY.ManagerTests\SY.ManagerTests.csproj" (11) is building "d:\a\1\s\src\SY.Manager\SY.Manager.csproj" (12:2) on node 1 (default targets). 2017-08-18T09:14:17.9102914Z BundleMinify: 2017-08-18T09:14:17.9102914Z 2017-08-18T09:14:17.9102914Z
Bundler: Begin processing bundleconfig.json 2017-08-18T09:14:17.9733689Z Minified wwwroot/css/bootstrap337.min.css 2017-08-18T09:14:17.9743707Z [33m[1m wwwroot/css/site.css was not found[0m[39m[49m 2017-08-18T09:14:18.2918725Z Minified wwwroot/js/site.min.js 2017-08-18T09:14:21.9681289Z Minified wwwroot/css/metro-all.min.css 2017-08-18T09:14:21.9781425Z Minified wwwroot/js/metro-base.min.js 2017-08-18T09:14:21.9781425Z Bundler: Done processing bundleconfig.json 2017-08-18T09:14:21.9831479Z PrepareForBuild: 2017-08-18T09:14:21.9831479Z Creating directory "bin\Release\netcoreapp1.1\". 2017-08-18T09:14:21.9831479Z Creating directory "obj\Release\netcoreapp1.1\". 2017-08-18T09:14:24.6830316Z PreComputeCompileTypeScript: 2017-08-18T09:14:24.6830316Z C:\Program Files (x86)\Microsoft SDKs\TypeScript\2.2\tsc.exe --noEmitOnError --listEmittedFiles 2017-08-18T09:14:24.6840303Z CompileTypeScript: 2017-08-18T09:14:24.6840303Z C:\Program Files (x86)\Microsoft SDKs\TypeScript\2.2\tsc.exe --noEmitOnError --listEmittedFiles 2017-08-18T09:14:24.6850285Z GenerateTargetFrameworkMonikerAttribute: 2017-08-18T09:14:24.6850285Z Skipping target "GenerateTargetFrameworkMonikerAttribute" because all output files are up-to-date with respect to the input files. 2017-08-18T09:14:24.7019946Z CoreCompile: 2017-08-18T09:14:24.7089830Z C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Roslyn\csc.exe /noconfig /unsafe- /checked- /nowarn:1701,1702,1705 /nostdlib+ /errorreport:prompt /warn:4 /define:TRACE;RELEASE;NETCOREAPP1_1 /reference:C:\Users\buildguest.nuget\packages\automapper\6.1.1\lib\netstandard1.3\AutoMapper.dll {other nuget packages}... /reference:C:\Users\buildguest.nuget\packages\wiry.base32.patched\1.0.5.1\lib\netstandard1.1\Wiry.Base32.dll /debug- /debug:portable /filealign:512 /nologo /optimize+ /out:obj\Release\netcoreapp1.1\SY.Manager.dll /ruleset:"C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Team Tools\Static Analysis Tools\Rule Sets\MinimumRecommendedRules.ruleset" /target:exe /warnaserror- /utf8output /deterministic+ /analyzer:C:\Users\buildguest.nuget\packages\microsoft.codeanalysis.analyzers\1.1.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll /analyzer:C:\Users\buildguest.nuget\packages\microsoft.codeanalysis.analyzers\1.1.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll

Controllers\ApiController.cs {other controllers}.... Models\ApiViewModels\CreateApiViewModel.cs {other viewmodel}...

Program.cs Startup.cs Utility\Notify.cs ViewComponents\HostListViewComponent.cs "d:\a_temp.NETCoreApp,Version=v1.1.AssemblyAttributes.cs" obj\Release\netcoreapp1.1\SY.Manager.AssemblyInfo.cs 2017-08-18T09:14:24.7139726Z Using shared compilation with compiler from directory: C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Roslyn

2017-08-18T09:14:25.4616323Z _CopyFilesMarkedCopyLocal: 2017-08-18T09:14:25.4616323Z Copying file from "d:\a\1\s\src\SY.Data\bin\Release\netcoreapp1.1\SY.Data.dll" to "bin\Release\netcoreapp1.1\SY.Data.dll". 2017-08-18T09:14:25.4626294Z Copying file from "d:\a\1\s\src\SY.Data\bin\Release\netcoreapp1.1\SY.Data.pdb" to "bin\Release\netcoreapp1.1\SY.Data.pdb". 2017-08-18T09:14:25.4626294Z GetTypeScriptCopyToOutputDirectoryItems: 2017-08-18T09:14:25.4626294Z Adding items with BuildAction=TypeScriptCompile to the same collections that will be populated (with items of other BuildActions) by the GetCopyToOutputDirectoryItems target 2017-08-18T09:14:25.4875852Z _CopyOutOfDateSourceItemsToOutputDirectoryAlways: 2017-08-18T09:14:25.4885844Z Copying file from "d:\a\1\s\src\SY.Data\appsettings.json" to "bin\Release\netcoreapp1.1\appsettings.json". 2017-08-18T09:14:25.4895830Z Copying file from "d:\a\1\s\src\SY.Manager\appsettings.json" to "bin\Release\netcoreapp1.1\appsettings.json". 2017-08-18T09:14:25.5135405Z CopyFilesToOutputDirectory: 2017-08-18T09:14:25.5135405Z Copying file from "obj\Release\netcoreapp1.1\SY.Manager.dll" to "bin\Release\netcoreapp1.1\SY.Manager.dll". 2017-08-18T09:14:25.5145385Z SY.Manager -> d:\a\1\s\src\SY.Manager\bin\Release\netcoreapp1.1\SY.Manager.dll 2017-08-18T09:14:25.5145385Z Copying file from "obj\Release\netcoreapp1.1\SY.Manager.pdb" to "bin\Release\netcoreapp1.1\SY.Manager.pdb". 2017-08-18T09:14:25.5454915Z MvcRazorPrecompile: 2017-08-18T09:14:25.5454915Z dotnet exec --runtimeconfig "d:\a\1\s\src\SY.Manager\bin\Release\netcoreapp1.1\SY.Manager.runtimeconfig.json" --depsfile "d:\a\1\s\src\SY.Manager\bin\Release\netcoreapp1.1\SY.Manager.deps.json" "C:\Users\buildguest.nuget\packages\microsoft.aspnetcore.mvc.razor.viewcompilation\1.1.1\build\netcoreapp1.1../../lib/netcoreapp1.1/Microsoft.AspNetCore.Mvc.Razor.ViewCompilation.dll" @"obj\Release\netcoreapp1.1\microsoft.aspnetcore.mvc.razor.viewcompilation.rsp" 2017-08-18T09:14:32.3099160Z Razor view compilation for SY.Manager -> bin\Release\netcoreapp1.1\SY.Manager.PrecompiledViews.dll 2017-08-18T09:14:32.3109135Z Done Building Project "d:\a\1\s\src\SY.Manager\SY.Manager.csproj" (default targets).

Here the bundler finds the css file but could not see anything from web-compiler that compile scss to css