Publishing error with aws.s3

Adding library("aws.s3") to RStudio's template Shiny Web App script, I get the following error message when publishing:

Error: Unhandled Exception: Child Task 562539322 failed: Error building image: Error fetching aws.signature (0.4.5) source. <CRANPackageSource repo=''> unable to satisfy package: aws.signature (0.4.5)

Is there a solution?

Where are you trying to publish this Shiny app to? Sounds like Also it looks like the problem is the version of the package you have installed locally? Am I right that the latest CRAN version is 0.4.4?

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Thank you. I should have spotted that. Re-installing the aws.signature package with version 0.4.4 has enabled publishing to

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