dsp not avaliable

when i load a master bank file,i got an error 54 : A requested output, dsp unit type or codec was not available. i check the fmod studio and output the file again. but the error still apear.this question nagged me for days.please help me, thank you very much.

A requested output, dsp unit type or codec was not available

Your bank is referencing a plugin that you do not available at runtime. It could be AstoundSound, FMOD Gain, Audio Weather, or some other DSP effect.

Remove the plugin effect from your event in the tool, or make sure you load the plugin in the runtime before loading any banks.