The plug-in execution failed because no Sandbox Hosts are currently available. Please check that you have a Sandbox server configured and that it is running.

The plug-in execution failed because no Sandbox Hosts are currently available. Please check that you have a Sandbox server configured and that it is running..

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.