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Error obtaining the expressions to delegate the projected fields to source vdpcachedatasource

Hi, We are obtaining randomly this error (we run the job daily, but sometimes it produces failure, other days not): "Error obtaining the expressions to delegate the projected fields to source vdpcachedatasource" Last time we had to delete the view and create it again, with the exactly same structure. Regards, Pablo
user
13-02-2020 02:34:46 -0500

1 Answer

Hi, For this scenario, I would check the vdp.log file located in **<Denodo-Home>/logs/vdp** folder for more information about this error by setting the useful log category. For example, I would use **com.denodo.vdb.cache** log category to analyze the information about the cache. Also, I would check the “View Reports” icon of the job to know more information about the error. For more information, you can have a look at the article [Using logcontroller and useful log categories](https://community.denodo.com/kb/view/document/Using%20logcontroller%20and%20useful%20log%20categories?category=Operation) and also can refer to the section **Reports** of the document [jobs](https://community.denodo.com/docs/html/browse/7.0/scheduler/administration/creating_and_scheduling_jobs/jobs/jobs#jobs). Besides that, If you are a valid support user, you can raise a support ticket so that our Denodo Support team can help you. Hope this helps!
Denodo Team
14-02-2020 07:11:14 -0500
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