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Permission denied to http://127.0.0.1:43120

Likely causes:
  • Plugin was not reloaded after manifest permission update.
  • UXP panel is stale and not connected.
Fix:
  1. Reload plugin in UXP Developer Tool.
  2. Reopen panel and connect bridge.
  3. Confirm with psagent bridge status.

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Manifest entry not found

Plugin bundle is out of sync with UXP loader state. Fix:
  • Remove and re-add plugin folder in UXP Developer Tool.
  • Reload plugin and reconnect.

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Could not complete your request because of a program error

Generic Photoshop error, usually from host state mismatch (active tool mode, missing target, unsupported descriptor in current state). Fix:
  • Exit text-edit/transform/modal dialogs.
  • Retry operation.
  • Check panel transaction log for failing op index.

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The command “Delete” is not currently available or The command “Make” is not currently available

Action Manager command attempted in invalid state or without valid target. Fix:
  • Verify target layer/document exists.
  • Ensure active document is valid and unlocked for mutation.
  • Prefer canonical high-level ops before raw batchPlay descriptors.

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One or more selections cannot be exported because they are empty

Export path expects an active non-empty selection. Fix:
  • Use document export (exportDocument) instead of selection export path when selection is optional.
  • Set/verify selection before layer export flows.

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Save dialog blocks and timeouts

A hidden Save As dialog can stall automation. Fix:
  • Prefer saveDocumentAs with explicit output.
  • Avoid saveDocument on unsaved docs unless dialog flow is intentional.
If Photoshop is in modal state, bridge retries internally and then fails with a clear message. Fix:
  • Exit modal workflows and retry.
  • Keep operation transactions smaller when debugging.