Action result: undefined

[Cdimock]

Does anyone know whats going on here? It seems like its all working properly, but then it just doesn't merge and gives this non-descript error

Run pascalgn/automerge-action@v0.15.3
DEBUG Configuration: {
  mergeLabels: { required: [ 'automerge' ], blocking: [] },
  mergeRemoveLabels: [],
  mergeMethod: 'merge',
  mergeMethodLabels: [],
  mergeMethodLabelRequired: false,
  mergeForks: true,
  mergeCommitMessage: 'automatic',
  mergeCommitMessageRegex: '',
  mergeFilterAuthor: '',
  mergeRetries: 6,
  mergeRetrySleep: 5000,
  mergeRequiredApprovals: 0,
  mergeDeleteBranch: false,
  mergeDeleteBranchFilter: [],
  mergeErrorFail: false,
  updateLabels: { required: [ 'automerge' ], blocking: [] },
  updateMethod: 'merge',
  updateRetries: 1,
  updateRetrySleep: 5000,
  baseBranches: [],
  pullRequest: null
}
2022-05-16T19:54:02.806Z INFO  Event name: push
2022-05-16T19:54:02.806Z DEBUG Updated branch: main
2022-05-16T19:54:02.806Z DEBUG Listing pull requests...
2022-05-16T19:54:02.992Z INFO  Open PRs: 1
2022-05-16T19:54:02.992Z INFO  Updating PR #18 CI: Build Number bumped to [7](https://github.com/Cdimock/test-buildNumber-action/runs/6459120349?check_suite_focus=true#step:2:7)1
2022-05-16T19:54:02.993Z DEBUG Getting pull request info for 1[8](https://github.com/Cdimock/test-buildNumber-action/runs/6459120349?check_suite_focus=true#step:2:8) ...
2022-05-16T1[9](https://github.com/Cdimock/test-buildNumber-action/runs/6459120349?check_suite_focus=true#step:2:9):54:03.240Z INFO  No update necessary, mergeable_state: clean
2022-05-16T19:54:03.241Z INFO  1 PRs based on main have been updated
2022-05-16T19:54:03.241Z INFO  Action result: undefined
2022-05-16T19:54:03.243Z Error: invalid result!
    at executeGitHubAction (/home/runner/work/_actions/pascalgn/automerge-action/v0.15.3/dist/index.js:86:[11](https://github.com/Cdimock/test-buildNumber-action/runs/6459120349?check_suite_focus=true#step:2:11))
    at processTicksAndRejections (internal/process/task_queues.js:97:5)
    at async main (/home/runner/work/_actions/pascalgn/automerge-action/v0.[15](https://github.com/Cdimock/test-buildNumber-action/runs/6459120349?check_suite_focus=true#step:2:15).3/dist/index.js:22[21](https://github.com/Cdimock/test-buildNumber-action/runs/6459120349?check_suite_focus=true#step:2:21)5:5)

[laviniamnedelea]

+1. Any fix or workaround for this?

[wjf3121]

+1. Is there any update on this issue?

2023-04-19T04:33:49.835Z INFO  Event name: push
2023-04-19T04:33:50.436Z INFO  Open PRs: 10
2023-04-19T04:33:50.436Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-19T04:33:50.437Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-19T04:33:50.437Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-19T04:33:50.437Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-19T04:33:50.437Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-19T04:33:50.437Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-19T04:33:50.437Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-19T04:33:50.43[8](https://github.com/risingwavelabs/risingwave-cloud/actions/runs/4739566454/jobs/8414514089#step:2:9)Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-1[9](https://github.com/risingwavelabs/risingwave-cloud/actions/runs/4739566454/jobs/8414514089#step:2:10)T04:33:50.438Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-19T04:33:50.438Z INFO  Skipping PR update, required label missing: autoupdate_merge
2023-04-19T04:33:50.438Z INFO  [10](https://github.com/risingwavelabs/risingwave-cloud/actions/runs/4739566454/jobs/8414514089#step:2:11) PRs based on main have been updated
2023-04-[19](https://github.com/risingwavelabs/risingwave-cloud/actions/runs/4739566454/jobs/8414514089#step:2:20)T04:33:50.438Z INFO  Action result: undefined
[20](https://github.com/risingwavelabs/risingwave-cloud/actions/runs/4739566454/jobs/8414514089#step:2:21)23-04-19T04:33:50.439Z ERROR invalid result!

[koppor]

Same here:

Run pascalgn/automerge-action@v0.15.6
  env:
    GITHUB_TOKEN: ***
    MERGE_FILTER_AUTHOR: github-actions
    MERGE_METHOD: merge
    MERGE_LABELS: 
2023-07-03T09:41:53.069Z INFO  Event name: push
2023-07-03T09:41:53.309Z INFO  No open PRs for add-automerge
2023-07-03T09:41:53.310Z INFO  Action result: undefined
2023-07-03T09:41:53.310Z ERROR invalid result!

My configuration is pretty basic:

jobs:
  automerge:
    runs-on: ubuntu-latest
    steps:
      - id: automerge
        name: automerge
        uses: "pascalgn/automerge-action@v0.15.6"
        env:
          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
          MERGE_FILTER_AUTHOR: "github-actions"
          MERGE_METHOD: "merge"
          MERGE_LABELS: ""