Could not load file or assembly 'Microsoft.AnalysisServices.SharePoint.Integration'

1. In Central Administration, in System Settings, click Manage farm solutions.

2. Click Powerpivotwebapp.

3. Click Deploy Solution.

4. Choose the web application for which this error is occurring. If there is more than one web application, redeploy the solution for all of hem.

5. Click OK.

Could not load file or assembly 'Microsoft.AnalysisServices.SharePoint.Integration'

原文：http://www.cnblogs.com/hqbird/p/5728635.html