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Altera_Forum
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19 years ago

Error: Can't Open project -- Quartus II 6.0

recently encountered many times, previous built project (Quartus II 5.0) can't be opened in Quartus II 6.0, and can't be opened in 5.0 as well. All files are sitting in the original loc...
Altera_Forum's avatar
Altera_Forum
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19 years ago

The problem is that somehow (don't ask me - i don't know) windows sets the write protection bits to several files and to directories.

You can check this in windows explorer if you press the right mouse button to the bar where Name, Size, Type and Date Modified is shown. Select the Attributes field. If an 'R' is shown for any of the files or directories in your project directory, then you have this problem.

To solve this you have to open a DOS box (start menu -> Run... -> enter cmd and press OK, change to the project directory and run

'attrib -R /S /D *'

This should clear all write protection flags for the files in this and all subdirectories (including the directories).

It is not necessary to delete or reinstall anything.

If one knows how to do this in windows explorer then please let me know, because i can remove write protection only on files, but not on directories.

Hope this helps

Klaus