ERROR whatBump must be a function

[dipiash]

Hi!

I have an issues with last version: 9.0.3:

ERROR `whatBump` must be a function

In package.json I have next deps:

"@release-it/bumper": "6.0.1",
"@release-it/conventional-changelog": "9.0.3",
"release-it": "17.10.0",
"@commitlint/cli": "19.6.0",
"@commitlint/config-conventional": "19.6.0",
"conventional-commits-parser": "6.0.0",

In a .release-it.json I have next config with option "whatBump": false,:

{
  "plugins": {
    "@release-it/conventional-changelog": {
      "whatBump": false,
      "header": "# Changelog",
      ...

but it's not help

[webpro]

There have been a few PR and fixes around whatBump recently. Please double-check the version numbers, perhaps remove the packages not directly used and re-install related packages. You could search for "whatBump" in the issues here, maybe it'll help.