After eclipse imports jquery package, it reports an error. The processing steps are as follows:

1. Open the project.project file and remove the following contents:

<buildCommand>
<name>org.eclipse.wst.jsdt.core.javascriptValidator</name>
<arguments>
</arguments>
</buildCommand>

2. Delete the original js, restart and copy again, because the original file has been marked as an error by the eclipse project.