SIMION®
The field and particle trajectory simulator
Industry standard charged particle optics software
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SIMION 8.0 Issues/Bugs/Enhancements

Filter issues by query:
Issue I376 [80,defect,high,resolved]
  Lua file locked, preventing editing.

  Reported by rdanell-20040416.
    http://www.simion.com/discuss/viewtopic?p=1523
    ...
    On trying to edit and save (in Wordpad) a Lua file attached to an
    open IOB I get a "file in use" error and am unable to save it.
    Removing all PAs from RAM still does not solve this and SIMION has
    to be closed completely in order to be able to save the file.
    Notepad is able to save it though.

  Cause:
   This seems to be a bug in Lua, where if the standard input stream
   is closed (which is not usual, but which SIMION 8.0.2 does), Lua
   might not close the next Lua file after running it, so the file
   remains locked for writing.  This has been reported and will be
   resolved one way or another in 8.0.3.

  Temporary workaround:
    In the SIMION bottom command bar enter
      io.input("NUL")
    after starting SIMION.
  
  Affects 8.0.2 (probably not prior versions).
  Resolved in 8.0.3-TEST5

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