Getting error: Could not retrieve default page of site (4286186)

When copying several site collections from SharePoint 2010 to Office 365, the error message below is encountered:

An error occurred during the operation of a service method. Could not retrieve default page of site.

The source SharePoint 2010 Blank Site template has Wiki Home Page Feature activated. The job configuration is not set for child site mapping so Content Matrix tries to create a blank site on the target, and then tries to "ClearTeamSiteWikiField". But, because it is a blank site, it fails.

Map Blank Site to Team Site by doing the following:

1. On the job configuration window, click on the Mapping Options tab.
2. Select the "Map Child Site Templates" option, then click on the ellipsis button.
3. On the Map Web Templates window, right-click on Blank Site, and then select Map to > Team Site.
4. Click OK, then run the job.

Note: Make sure to enable the Advanced Mode on the Settings tab of the Content Matrix Console or on the job configuration window to see all the job configuration options.