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Editorial Team
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Asked: 2026-05-22T23:46:33+00:00

I’ve been working in Flash BUilder 4.0. I installed Flash Builder 4.5, and switched

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I’ve been working in Flash BUilder 4.0. I installed Flash Builder 4.5, and switched to the workspace I had used for 4.0. Then we were told to go back to 4.0, and now I can’t run or debug. I can build, but then I have to double click on the .html file to run. Right clicking doesn’t bring up run or debug, and the run and debug icons are not in my toolbar. Any ideas? I thought I would check if it is something simple before I reinstall.

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1 Answer

  1. Editorial Team

    Create a full backup of your workspace first so you can always go back to the previous situation!

    Try removing the hidden .metadata folder from your workspace, remove all your projects from your workspace (but of course not from the disk!).
    Restart Flash Builder, open your workspace folder and then reimport them.

    If the above does not work, your project might be corrupted.
    To fix this, you will have to take a look at your hidden .actionScriptProperties and .project files in your project folder.
    Create a new 4.0 project and compare the values of these files to your corrupted project’s file. Look especially at the project natures.

    If that still doesn’t work, remove your workspace, create a new one.
    Create a new project and copy all source files of your corrupted project into this project.
    Do not copy the .actionScriptProperties and .project files (which is what you get when copying over the whole folder since they are hidden files)

    Cheers

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