Did you forget an option value? How to pass a blank variable from yml

[nick5454]

I have this issue, how do pass a null variable: Or is something else wrong? Upgrading to Cake 1.1.0

Startup project is specified as a blank variable

error:
`Preparing to run build script...
Tools: D:\a\1\s\build\tools
Tools: D:\a\1\s\build\tools\Addins
Start testing Cake path.
Running build script...

Error: Expected an option value.

   .\build\build.cake --verbosity=Diagnostic --Target=Deploy 

--ZipProjects=XXXXX.Mobile.Api= --SolutionFilePath=XXXXX.Mobile.Api.sln
--StartUpProject=

^ Did you forget the option value?

`

My yml:
variables:
SYSTEM_ACCESSTOKEN: $(System.AccessToken)
SolutionFile: "XXXXXX.Mobile.Api.sln"
ZipProjects: "XXXXX.Mobile.Api=" # leave blank to drop in whole file
StartUpProject: ""
DomainProject: ""
DomainOutputSql: ""
DbContext: ""

stages:

• stage: GetProjectRepo
  jobs:
  • job: Build
    steps:
    • task: PowerShell@2
      displayName: 'PowerShell Script'
      inputs:
      targetType: filePath
      filePath: '.\build\build_cake.ps1'
      arguments: '--Target=Deploy --ZipProjects="$(ZipProjects)" --SolutionFilePath="$(SolutionFile)" --StartUpProject="$(StartUpProject)" --DomainProject="$(DomainProject)" --DomainOutputSql="$(DomainOutputSql)" --DbContext="$(DbContext)"'
      env:

[nils-a]

@nick5454 This has changed from pre-1.0.0 to 1.0.0 have you checked https://cakebuild.net/docs/getting-started/upgrade#passing-empty-arguments ?

[nils-a]

You could also have a look at #3198 and/or this answer on StackOverflow

[nick5454]

Works as ZipProjects "$(ZipProjects)"