How to keep a dynamic input tool from erroring out if no file is present to read

Question

I am working on a project in which checks are issued and need to be brought into the workflow.  The issue is that checks are not issued every day, but my workflow is run every day - there are other parts.  If there are files, the workflow works great.  If there are no files for that day, then my dynamic input gives an error "CAN'T FIND THE FILE..."

I have the dynamic input tool after a filter, so it would seem that if the directory tool read in no files, then the dynamic input tool shouldn't run, but it always runs.

Does anyone have any ideas on how to prevent the dynamic input tool from looking for a file if the file is not in the directory?

I isolated the portion of the workflow and attached a snapshot of it below with the error.

Thank you.

SPetrie · Answer

As has been mentioned by others, its the missing template that is causing the error when there is no file to read. If you are unable to update the template for some reason, you can also use a control container to prevent the tool from being active when there are no files to run. The output anchor of your filter or directory tool can be connected to the input of the container to turn it on or off.

Raj · Answer

@JChiaravalle 
this error is due to the template, not the input file
please check the configuration of dynamic input tool and make sure the template file is available in place

DavidGogis · Answer

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I have the dynamic input tool after a filter, so it would seem that if the directory tool read in no files, then the dynamic input tool shouldn't run, but it always runs.

Does anyone have any ideas on how to prevent the dynamic input tool from looking for a file if the file is not in the directory?

I isolated the portion of the workflow and attached a snapshot of it below with the error.

Thank you.

I faced a similar issue before. In my case, the Dynamic Input tool kept trying to run even when there were no files in the directory. To solve this, I added an extra check before the Dynamic Input tool that analyzes the output of the Directory Tool. If no files are found, I use a condition (like a "Conditional Split" or "Formula Tool") to prevent the Dynamic Input tool from running. This prevents the "CAN'T FIND THE FILE" error and allows the workflow to run smoothly.