Exporting creative for Google DoubleClick Network

Every time I upload my creative to Google’s HTML5 validator I get the following error message…

Missing asset check

The creative references a file that was not included in the zipped folder. Reach out to the creative developer to resolve this issue.

More details:
Source: LINKED_FILE_NOT_FOUND found in IMC 300x600/IMC 300x600.html: IMC%20300x600.hyperesources/imc300x600_hype_generated_script.js

Anyone know why this is happening?

It might be having trouble because you have a space in your exported document name. Try exporting using the name:

IMC_300x600

And place it in a folder without spaces as well.

That was the problem! Thank you so much.