Clearing the cache of CRM

Hi,

Is there a way that i can clear the cache of CRM, after updating to version 9 i'm facing too much delay in applying the customization, for example i add new field called ets_Sequence

for the first 3-4 hours i will keep getting errors 

'entityname' entity doesn't contain attribute with Name = 'ets_sequence' and NameMapping = 'Logical'.'

to fix it i need to re run my code for 2-3 times 

Any ideas