Conversion to Dalvik format failed with error 1 - After updating Android SDK & ADT

Question

After updating SDK and ADT for the latest release, I tried to run my application and Eclipse log the following error:

[- RichReaderDemo] Dx 
UNEXPECTED TOP-L         


        

Answer 1

The solution is:

1) Delete the project (do no delete project contents from disk).
2) Delete the .project and .classpath files in the project.
3) Create new project with the current src (Create project from existing source)