Hello, I keep getting this a lot, and the only way to solve it is to move my project files to some very specific folder: I tried this: https://www.intel.com/content/www/us/en/support/programmable/articles/000084612.html But no good. Tried running Quartus Prime as administrator, tried resetting the PC, deleting the db folder, but nothing works. Updated Quartus to the latest version but also no good. What should I do? I'm running Windows 10. Thanks

I just installed the latest Quartus Lite and ran into this problem. I was able to work around it by not having the db folder in Google Drive. It seems to have a access conflict of some sort. So set your project folder outside a cloud backup area and it should work.

In what location is it not working and in what location is it working?

Right now in any location it doesn't work except E:\F3, which is a temporary location I used to just try to open it a while ago. But it only works if I only replace the .VHD and .QSF files, keeping everything else intact. I tried in C:\, tried resetting the PC, updating Quartus to the latest version... but nothing solves it.

Are there spaces or characters in your path or file names? That can also be an issue.

Originally yes, but I moved it to several other locations that doesn't, and it still happens. For example: Here's one of the paths I tried (C:\FPGA-LCD) and all the files on the project. When I try to open this project, it will create the "db" folder, place nothing inside, and then show that error message. If I try that on drive & folder D:\TEST, same thing happens.

Can't open project / permission error

16 Replies

gregorywhitcomb
New Contributor
3 years ago
I just installed the latest Quartus Lite and ran into this problem. I was able to work around it by not having the db folder in Google Drive. It seems to have a access conflict of some sort. So set your project folder outside a cloud backup area and it should work.
sstrell
Super Contributor
4 years ago
In what location is it not working and in what location is it working?
EBarc1
New Contributor
4 years ago
Right now in any location it doesn't work except E:\F3, which is a temporary location I used to just try to open it a while ago. But it only works if I only replace the .VHD and .QSF files, keeping everything else intact.

I tried in C:\, tried resetting the PC, updating Quartus to the latest version... but nothing solves it.
sstrell
Super Contributor
4 years ago
Are there spaces or characters in your path or file names? That can also be an issue.
EBarc1
New Contributor
4 years ago
Originally yes, but I moved it to several other locations that doesn't, and it still happens. For example:

Here's one of the paths I tried (C:\FPGA-LCD) and all the files on the project. When I try to open this project, it will create the "db" folder, place nothing inside, and then show that error message.

If I try that on drive & folder D:\TEST, same thing happens.
SyafieqS
Super Contributor
4 years ago
Eduardo,

May I know what Quartus version you are using?
Can you try to reinstall Quartus and see if it is still persist?
Otherwise this could be due to permission issue on your local machine which you need to allow all to read and write to/from
- EBarc1
  New Contributor
  4 years ago
  I was originally using 20.1. Then, because of this, I tried installing 21.1, and nothing changed.
  
  Also, I tried several times to run Quartus in administrator mode, and nothing changed. I'm also logged as the admin of this machine.
  
  Several other engineering programs work on that same folder of that project. For example:
  
  E:\Important\Sync\EE\Projects\Portable Pad\FPGA
  
  E:\Important\Sync\EE\Projects\Portable Pad\Firmware
  
  E:\Important\Sync\EE\Projects\Portable Pad\PCB
  
  So I don't see how permission issues would affect just Quartus Prime. Note that I also tried moving the FPGA folder all around, even to the desktop, but nothing helps. Quartus just didn't like my PC.
  
  But, as seeing its not a common issue with Quartus Prime, I guess its just some other program I have or something here that's causing this conflict.
EBarc1
New Contributor
4 years ago
Note:

I installed Quartus Prime Lite 20.1 on my laptop computer, and the same thing happens! It can't open my project! If I create a new project, once done when I click twice on the entry file it says "Can't open entry file."
sstrell
Super Contributor
4 years ago
OK, if you haven't already, try downloading the installer from the Download Center again. If this is happening on multiple computers, the only thing I can think of is that you may be using the same installer and it's messing up permissions somehow.
EBarc1
New Contributor
4 years ago
I think the issue was with my previous project files. I created a new project and copied/pasted the VHDL and QSF files, and it works. Closed Quartus, reopened, still works. But lets see for how long. I'll report here to keep on records.
SyafieqS
Super Contributor
4 years ago
Eduardo,

May I know if there is any update on the status?