问题
I'm getting the following error on my flash project 5000: The class ... must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type. I looked at the class and made sure that I import flash.display.MovieClip and I do. I tried to change the base class in the linkage to flash.display.MovieClip but I got the following message: "The base class specified is a native class and will be defined in the player at runtime. It cannot be edited."
How can I fix this issue? Thanks in advance, Kfir
回答1:
importing the MovieClip class gets you halfway there, you have to actually extend the class with MovieClip as well.
ie)
package
{
import flash.display.MovieClip
public class MyClass extends MovieClip
{
.....
回答2:
Well I just had the same bug in another project and decided that I should post the solution. For some bizarre reason this error may occur when the references of the project are invalid. In my case all I had to do is go to File->Publish Settings->Flash->Settings and update all the paths there. That solved my problem.
I hope this will help other people out there and maybe the someone from the flash team will see this and patch this bug.
回答3:
I had the same problem when transfering my files from my desktop computer on my laptop. Actually I tried all I can, but the kfir solution put me on the good way... Refreshing all the paths in File->Publish Settings->Flash->Settings wasn't enough for me... I also had to rewrite all the paths to classes in the miniclip properties. To be more precise, I even had to remove it, click on the tick icon (to validate the path blank), and rewrite the path again and re-tick...
Sounds really wired but does work for me.
回答4:
Solved: I exported the Publish Settings from other flash that worked well, imported them in the document that gave me error 5000, and it solved the problem!
来源：https://stackoverflow.com/questions/4265607/unable-to-solve-flash-error-5000-the-class-must-subclass-flash-display-mov