Quote:
Originally Posted by slowsmile
I tried downloading the new EpubCheck 0.3.8 plugin to replace my older version(0.3.7) on Sigil today. Unfortunately the new version failed to install and gave me this error:
Plugin plugin.xml is invalid or not supported on your operating system.
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I don't think that this problem is related to Sigil 0.9.7, because the message is also displayed if the plugin zip file was renamed.