Body: <p>I'm trying to stringify my gene network in Cytoscape and have designated a column with uniprot IDs for the basis of the search. Not every gene has a uniprot ID but I have selected to retain genes without them. For some reason I am unable to execute this function and receive  the feedback:</p>
  <p>&quot;Stringify network
   Cannot invoke &quot;Object.toString()&quot; because the return value of &quot;java.util.List.get(int)&quot; is null&quot;</p>
  <p>I have verified the uniprot IDs are correct and exist with singular matches to the database, could anyone give insight into how I might overcome this issue?</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-08-07T20:52:46.593Z
Comments.Text: Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking.
Comments.UserDisplayName: Community
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2024-08-08T03:29:40.183Z
Comments.Text: Could you provide a backtrace when you get this error?  You can get it by running Cytoscape from a command shell, but you can also get provide the backtrace that shows up in your CytoscapeConfiguration/3/framework-cytoscape.log  That will help us figure out exactly where the problem is.
Comments.UserDisplayName: Scooter Morris
Tags: <gene><uniprot><cytoscape><java><biostrings>
Title: Cannot invoke "Object.toString()" but Uniprot IDs are there
ThreadText: # Cannot invoke "Object.toString()" but Uniprot IDs are there
  
  (Asked by: username_0 on 2024-08-07)
  
  I'm trying to stringify my gene network in Cytoscape and have designated a column with uniprot IDs for the basis of the search. Not every gene has a uniprot ID but I have selected to retain genes without them. For some reason I am unable to execute this function and receive the feedback:
  
  "Stringify network
   Cannot invoke "Object.toString()" because the return value of "java.util.List.get(int)" is null"
  
  I have verified the uniprot IDs are correct and exist with singular matches to the database, could anyone give insight into how I might overcome this issue?
  
  **Tags:** gene, uniprot, cytoscape, java, biostrings
  
  > **Comments:**
  > **username_1**: Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking.  
  > **username_2**: Could you provide a backtrace when you get this error?  You can get it by running Cytoscape from a command shell, but you can also get provide the backtrace that shows up in your CytoscapeConfiguration/3/framework-cytoscape.log  That will help us figure out exactly where the problem is.  
  
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  ## 0 answers
  
  