"Configuring the trigger failed, edit and save the pipeline again" with no noticeable error and no further details - azure-devops

Question

I have run in to an odd problem after converting a bunch of my YAML pipelines to use templates for holding job logic as well as for defining my pipeline variables. The pipelines run perfectly fine, however I get a "Some recent issues detected related to pipeline trigger." warning at the top of the pipeline summary page and viewing details only states: "Configuring the trigger failed, edit and save the pipeline again."
The odd part here is that the pipeline works completely fine, including triggers. Nothing is broken and no further details are given about the supposed issue. I currently have YAML triggers overridden for the pipeline, but I did also define the same trigger in the YAML to see if that would help (it did not).
I'm looking for any ideas on what might be causing this or how I might be able to further troubleshoot it given the complete lack of detail that the error/warning provides. It's causing a lot of confusion among developers who think there might be a problem with their builds as a result of the warning.
Here is the main pipeline. the build repository is a shared repository for holding code that is used across multiple repos in the build system. dev.yaml contains dev environment specific variable values. Shared holds conditionally set variables based on the branch the pipeline is running on.
name: ProductName_$(BranchNameLower)_dev_$(MajorVersion)_$(MinorVersion)_$(BuildVersion)_$(Build.BuildId)
resources:
repositories:
- repository: self
- repository: build
type: git
name: Build
ref: master
# This trigger isn't used yet, but we want it defined for later.
trigger:
batch: true
branches:
include:
- 'dev'
variables:
- template: YAML/variables/shared.yaml#build
- template: YAML/variables/dev.yaml#build
jobs:
- template: ProductNameDevJob.yaml
parameters:
pipelinePool: ${{ variables.PipelinePool }}
validRef: ${{ variables.ValidRef }}
Then this is the start of the actual job yaml. It provides a reusable definition of the job that can be used in more than one over-arching pipeline:
parameters:
- name: dependsOn
type: object
default: {}
- name: pipelinePool
default: ''
- name: validRef
default: ''
- name: noCI
type: boolean
default: false
- name: updateBeforeRun
type: boolean
default: false
jobs:
- job: Build_ProductName
displayName: 'Build ProductName'
pool:
name: ${{ parameters.pipelinePool }}
demands:
- msbuild
- visualstudio
dependsOn:
- ${{ each dependsOnThis in parameters.dependsOn }}:
- ${{ dependsOnThis }}
condition: and(succeeded(), eq(variables['Build.SourceBranch'], variables['ValidRef']))
steps:
**step logic here
Finally, we have the variable YAML which conditionally sets pipeline variables based on what we are building:
variables:
- ${{ if or(eq(variables['Build.SourceBranch'], 'refs/heads/dev'), eq(variables['Build.SourceBranch'], 'refs/heads/users/ahenderson/azure_devops_build')) }}:
- name: BranchName
value: Dev
** Continue with rest of pipeline variables and settings of each value for each different context.

Answer 1

You can check my post here : Azure DevOps pipeline trigger issue message not going away
As I can see in your YAML file, you are using this branch : 'refs/heads/users/ahenderson/azure_devops_build'.
I think some YAML files you are refering are missing from the branch defined as default in your build there :
Switch to your branch

Answer 2

I think I may have figured out the problem. It appears that this is related to the use of conditionals in the variable setup. While the variables will be set in any valid trigger configuration, it appears that the proper values are not used during validation and that may have been causing the problem. Switching my conditional variables to first set a default value and then replace the value conditionally seems to have fixed the problem.
It would be nice if Microsoft would give a more useful error message here, something to the extent of the values not being found for a given variable, but adding defaults does seem to have fixed the problem.

Answer 3

In our case it was because the path to the YAML file started with a slash: /builds/build.yaml
Removing the slash fixed the error: builds/build.yaml

Answer 4

In my case I had replaced the trigger in the yaml-file. The pipeline then does not now where to start.
# ASP.NET
# Build and test ASP.NET projects.
# Add steps that publish symbols, save build artifacts, deploy, and more:
# https://learn.microsoft.com/azure/devops/pipelines/apps/aspnet/build-aspnet-4
trigger:
- "main" # <-- That was name wrong

Answer 5

For me it was this causing the problem...
The following pipeline.yaml causes the error “Configuring the trigger failed, edit and save the pipeline again”. It has to do with the environment name name: FeatureVMs.${{ variables.resourceName }}, if i replace ${{ variables.resourceName }} with something else e.g. FeatureVMs.develop then the error does not occur. The strange thing is, if i once save the pipeline with all triggers I want and a valid environment FeatureVMs.develop then it saves the triggers, if i then change it to what i actually want a dynamic environment resource selection FeatureVMs.${{ variables.resourceName }} then the error occurs but Azure Dev Ops the pipeline works as i expect it. So the workaround is to save it once without a variable and the triggers you want and then with the variable and live with the error on top of the pipeline
This causes the error
trigger: none
variables:
- name: resourceName
value: $(Build.SourceBranchName)
- name: sourcePipeline
value: vetsxl-ci
resources:
pipelines:
- pipeline: vetsxl-ci
source: vetsxl-ci
trigger:
branches:
include:
- develop
- feature/F*
- release/*
- review/*
- demo/*
- hotfix/H*
- tests/*
- test/*
stages:
- stage: Deploy
displayName: 'Deploy'
condition: and(succeeded(), ne(variables['Build.Reason'], 'PullRequest'))
jobs:
- deployment: DeployVM
displayName: 'Deploy to develop VM'
environment:
name: FeatureVMs.${{ variables.resourceName }}
strategy:
rolling:
deploy:
steps:
- template: deploy.yml
parameters:
sourcePipeline: ${{ variables.sourcePipeline }}
This works without any errors.
trigger: none
variables:
- name: resourceName
value: $(Build.SourceBranchName)
- name: sourcePipeline
value: vetsxl-ci
resources:
pipelines:
- pipeline: vetsxl-ci
source: vetsxl-ci
trigger:
branches:
include:
- develop
- feature/F*
- release/*
- review/*
- demo/*
- hotfix/H*
- tests/*
- test/*
stages:
- stage: Deploy
displayName: 'Deploy'
condition: and(succeeded(), ne(variables['Build.Reason'], 'PullRequest'))
jobs:
- deployment: DeployVM
displayName: 'Deploy to develop VM'
environment:
name: FeatureVMs.develop
strategy:
rolling:
deploy:
steps:
- template: deploy.yml
parameters:
sourcePipeline: ${{ variables.sourcePipeline }}