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https://nishantrana.me/2012/11/28/a-managed-solution-cannot-overwrite-a-saved-query-component-on-the-target-system-that-has-unmanaged-base-instance-error-while-importing-a-managed-solution-in-crm-2011/
A managed solution cannot overwrite a Saved Query component on the target system that has unmanaged base instance error while importing a managed solution in CRM 2011