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1. Check if your modules contain Vaadin implementations.
2. If they do:
   1. Obtain the the Migration Tool for Converting Vaadin Framework 7 Projects to Vaadin Framework 8 from https://github.com/vaadin/framework8-migration-tool .
   2. Install it locally and run like a Java jarWhile on the README at the URL, read how to install the tool and run it.
   3. The script tool automatically changes the imports of the affected classes and thus – in the majority of cases – will make your module(s) compatible with Vaadin 8.
3. As stated in Migrating to Vaadin 8, some dependencies need to be added in order to use the compatible classes from Vaadin 7 (such as TextField).
   

   Change the vaadin-server dependency from

   Code Block
   language xml
   <dependency> <groupId>com.vaadin</groupId> <artifactId>vaadin-server</artifactId> <version>7.7.6</version> </dependency>

   to 

   Code Block
   language xml
   <dependency> <groupId>com.vaadin</groupId> <artifactId>vaadin-compatibility-server</artifactId> <version>8.1.5</version> </dependency>

   
   

   The full list of compatibility packages available for Framework 8:

   • vaadin-compatibility-server
   • vaadin-compatibility-client
   • vaadin-compatibility-client-compiled
   • vaadin-compatibility-shared
   • vaadin-compatibility-themes

   To be able to use the new Vaadin 8 features, add also the following dependency:

   Mgnl mini code snippet
   Style boxed
   <dependency> <groupId>com.vaadin</groupId> <artifactId>vaadin-server</artifactId> <version>8.1.5</version> </dependency>

   
   

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