Umbraco插件KeyValueEditor部署后失效，需重装的原因咨询

Hey there, I’ve dealt with quite a few Umbraco plugin deployment issues like this before, so let’s break down the most likely culprits behind your KeyValueEditor failing post-deployment (even with installedPackages.config references and the App_Plugins folder in your project):

• Incomplete File Deployment or Permissions Issues
  Just having the App_Plugins\KeyValueEditor folder in your project doesn’t guarantee every file gets copied over during deployment. Critical files like package.manifest, frontend assets (JS/CSS), or backend DLLs might be missing on the target environment. Additionally, IIS app pool users might lack read permissions for these files, preventing Umbraco from loading the plugin.
  Quick check: Compare the App_Plugins\KeyValueEditor directory between your local dev environment and the deployed server to ensure full file parity, then verify file permissions for the app pool identity.

• Stale Umbraco Caching
  Umbraco caches plugin manifest data and component registrations aggressively. After deployment, the target environment might still be using old cached data, so it doesn’t recognize the newly deployed plugin.
  Fix steps: Delete all files in App_Data\TEMP\ClientDependency, restart the IIS app pool, or use the Umbraco backend’s Developer > Reload App Domains option to clear cached data.

• Mismatched installedPackages.config Entries
  Even if you have the plugin listed in installedPackages.config, the deployed version of this file might not match your local one—maybe it wasn’t overwritten during deployment, or the packageId, version, or packageName values don’t align with the actual plugin files on the server. Umbraco uses this file to validate plugin installation status, so mismatches can flag the plugin as unregistered.
  Check: Open the target environment’s installedPackages.config and cross-verify every field for the KeyValueEditor entry against your local copy.

• Missing Dependencies
  KeyValueEditor might rely on specific Umbraco versions or additional NuGet packages. If your target environment runs a different Umbraco version than your local setup, or if required dependency DLLs are missing from the bin folder, the plugin will fail to initialize.
  Action: Check the plugin’s documentation or its package.xml file to confirm Umbraco version requirements and dependencies, then validate these against the target environment’s setup.

• Deployment Tool Exclusion Rules
  Deployment tools like Web Deploy or Octopus Deploy often have default exclusion rules that skip certain file types or directories. For example, if the plugin’s backend DLL lives in the bin folder but your deployment tool is set to ignore unlisted DLLs, it won’t get pushed to the server.
  Fix: Review your deployment tool’s configuration to ensure all plugin-related assets (bin DLLs, App_Plugins files, installedPackages.config) are included in the deployment pipeline.

内容的提问来源于stack exchange，提问作者Mike