Error with @pdftron/webviewer-downloader package

Hello guys, I have an issue with @pdftron/webviewer-downloader package. When I try running ''npx @pdftron/webviewer-downloader --core-only --v 6.1.1 --path ./lib" I got an error “invalid central directory file header signature: 0x5053884e”. The issue only appears when I try to build a Docker file in Circleci and it only appears sometimes not always. I hope someone can help me to fix this issue. Thank you.

Screen Shot 2020-03-02 at 8.25.21 PM.png

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Just want to confirm that you’ve submitted the ticket( about this issue as well? If this is the case then can we continue the conversation in the ticket since it’s easier for us to keep track of?

This issue will be fixed in the upcoming 6.2 version, which we plan to release within the next two weeks. In the meanwhile, discussions in this issue( might be helpful.

Best Regards,
Zhijie Zhang
Software Developer
PDFTron Systems Inc.

The link you gave me can’t help me, I used node 8.11 and I can’t upgrade to node 10, I need another workaround for this issue.