i have upgraded my Magento in 1.9 to 2.0 after upgraded i have face same issue

[nijalnsit]

There has been an error processing your request

Please upgrade your database: Run "bin/magento setup:upgrade" from the Magento root directory. 
The following modules are outdated:
Magento_Theme schema: current version - 2.0.1, required version - 2.0.0
Magento_Theme data: current version - 2.0.1, required version - 2.0.0
Magento_Customer schema: current version - 2.0.7, required version - 2.0.6
Magento_Customer data: current version - 2.0.7, required version - 2.0.6
Magento_Cms schema: current version - 2.0.1, required version - 2.0.0
Magento_Cms data: current version - 2.0.1, required version - 2.0.0

[Mukesh Tiwari]

Hi @nijalnsit

Did you try to run following command on magento root directory php bin/magento setup:upgrade as mentioned in the error message?

[magento_wire]

upgrading from >1.9 to 2.0.x you also need to whitelist blocks in System -> permissions -> blocks.