[]关于导出粒子特效问题

导出的时候报错了
Unsupported texture format - Texture2D::EncodeTo functions do not support compressed texture formats.
UnityEngine.Texture2D:EncodeToPNG()
LayaExport.DataManager:saveTextureFile(JSONObject, Texture2D, String, String, String)
LayaExport.DataManager:saveLmatFile(Material, String, ComponentType)
LayaExport.DataManager:getParticleSystemComponentData(GameObject, JSONObject)
LayaExport.DataManager:getComponentsData(GameObject, JSONObject, JSONObject, Vector3, Quaternion, Vector3, String&)

请问下是不支持什么格式吗？