So I'm running into this old ugly problem of seeing this error in my build:
org.codehaus.plexus.archiver.jar.Manifest.merge(org.codehaus.plexus.archiver.jar.Manifest) I've searched the web and seem to find out that this is an old problem that is relating to an older version of the plexus.archiver. All solutions point to downgrading the jar plugin to 2.3.2. Additionally, I see that the jar plugin is up to version 2.5 so I presume this issue has been resolved since 2.4. https://dev.eclipse.org/mhonarc/lists/m2e-users/msg02274.html My problem is that this is occuring in projects that are WARs and EARs. I'm using maven-war-plugin 2.6 and maven-ear-plugin 2.10 I only noticed this error once I installed m2e-wtp. Prior to installing m2e-wtp, I didn't see this problem. What can I do about this? Is this still an archiver problem? Is there a version that I can specify to avoid this error? I'm running Eclipse Juno 4.2.1 with M2e 1.4.0 and m2e-wtp 1.0.1 Thanks, Eric
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