With the release of Indigo, there is no longer a separate part of the sonatip update needed for M2E. M2E can be found on the pre-configured Indigo update site.
Inside Eclipse, select Help-> Install New Software. Select the Indigo update site.
After you select a site, it can take up to a minute before the software options can be expanded in the table in this Install dialog box. After Eclipse has downloaded the software options, select "M2E - Maven Integration for Eclipse" in the "General Tools" section. Complete the installation and restart Eclipse.
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