project schematic error

- March 28, 2020 at 8:45 am
  
  franke
  Subscriber
  
  hello,
  
  I have been doing work on Ansys fluent and left a simulation running overnight, I think my laptop updated unexpectedly and this is an error I have found and I have also found this error several other times before. this is for a project that is quite urgent now and I no longer have any working access to this file. Please can anyone help ith this?
  
  Thanks in advance
- March 30, 2020 at 5:03 am
  
  Keyur Kanade
  Ansys Employee
  
  the image is not clear at all.
  
  also on left side there is no system.
  
  can you please uninstall and reinstall 2020R1?
- March 31, 2020 at 8:03 am
  
  franke
  Subscriber
  
  hi,
  
  Sorry didn't realise.
  
  I have sent the files to another user also so it is definitely a problem with the files rather than the installation.
  
  the system is usually there to begin with and upon the errors it disappears.
  
  the errors run along the lines of
  
  Unable to load project... Exception: Value cannot be null. Parameter name: key
  
  There are a large variety of errors that appear but they usually begin with this
  
  Do you have any suggestions? Alternatively I could add the files?
- March 31, 2020 at 12:57 pm
  
  franke
  Subscriber
  
  this is the clearest i can get the image
- March 31, 2020 at 1:17 pm
  
  Rob
  Forum Moderator
  
  You may just have an installation issue: there are no licenced tools shown in the first image. Assuming you still have the project folder have a look in there for .cas and .dat files. These can be opened in Fluent in a different project, or from Fluent standalone.
- March 31, 2020 at 1:29 pm
  
  franke
  Subscriber
  
  Hi,
  
  THe license tools are usually there but as these errors occur they dissappear. I can have the files working perfectly fine and then this suddenly occurs. I am currently working from my home computer but it also happened on my university computers. how do I go about opening these on a different file?
  
  thanks for your interest
- March 31, 2020 at 4:26 pm
  
  Rob
  Forum Moderator
  
  If the Fluent files are copied (do NOT move anything) then launch Fluent and use Import case & data.
- March 31, 2020 at 6:05 pm
  
  franke
  Subscriber
  
  Thank you,
  
  do you have any idea why this error could have occurred? Or how to go about avoiding it happening ever again
- April 1, 2020 at 2:35 am
  
  Keyur Kanade
  Ansys Employee
  
  does this error occur only for these files?
  
  can you please check the version you are using.
  
  please use latest 2020R1.
  
  please create a test case from scratch.
  
  open workbench.
  
  open geometry - spaceclaim
  
  create a pipe.
  
  mesh it
  
  move to fluent and solve.
  
  please check if you can do this simple test.
  
  if you can not do this test, then it is installation problem.
  
  if you can do this test then it may be a file problem.
  
  Please check version.
  
  the files might have got corrupted.
  
  Regards,
  
  Keyur
  
  If this helps, please mark this post as 'Is Solution' to help others.
  
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- April 1, 2020 at 9:17 am
  
  franke
  Subscriber
  
  hi, Its appening to all my files but they were originally frm the same one, it has also occured on different computers so I expect is a file problem but I am unsure from what
- April 2, 2020 at 3:13 am
  
  Keyur Kanade
  Ansys Employee
  
  as suggested can you please create a file from scratch instead of opening previously saved file.
  
  also if it is happening to all your files then it must be installation issue.
  
  all versions are not backward compatible. you can not read 2020R1 workbench file in 2019R3.
  
  Regards,
  
  Keyur
  
  If this helps, please mark this post as 'Is Solution' to help others.
  
  Guidelines on the Student Community
  
  How to access ANSYS help links