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error in fragment example

 
sam liya
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this is my main activity class



this is my fragmentOne class



this is my FragmentTwo class



below is the exception in logcat



below is the manifest file



i have already define the activities in manifest file.why it gives me above error?
 
Maneesh Godbole
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sam liya
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so manesh below is my fragment class




it is public ,has no arg constructor and class name exsist.
 
Ulf Dittmer
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That tripped me up recently. The need for the empty constructor is documented, but it wasn't obvious to me that the default constructor won't do (although I guess that's not empty due to to the super() call).
 
sam liya
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So ulf what needs to change in above code?
 
Ulf Dittmer
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Maneesh already quoted what needs to be done. I wish more error messages came with a precise description of how to fix them :-)
 
sam liya
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i change the class as below



then it gives me below error

 
Ulf Dittmer
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Seems unrelated. What's the exact connection to your code?
 
Alex Rome
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I fixed this error changing the target in the "project.properties" file with:

target=android-19
 
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