| Runtime Error # | Message | Description of possible problems |
|---|
| 5 | Invalid procedure call | Usually occurs when a parameter is too large for the procedure. |
| 6 | Overflow | A number entered is too big for the memory allocated. Sometimes occurs when importing TIPSY data and the THIN and THINNED columns are mislabeled. |
| 9 | Subscript out of range | Most common when polygons have been deleted in versions of Woodlot before 2.15.
Occurs when a function tries to access information from a polygon that has been deleted or never existed. E.g. if you have 10 polygons but the software is looking for the area of polygon 11 which does not exist. |
| 11 | Division by zero | This sometimes occurs when loading a file that does not exist. Fixed in Woodlot 2.20.
Occurs when a function tries to divide a number by 0. |
| 53 | File not found | When the program tries to access a file that no longer exists. |
| 61 | Disk full | If your hard drive / floppy drive that is being saved to becomes. |
| 62 | Input past end of file | The file that was being opened/imported ended, the program had not finished loading the expected amount of information. |
| 75 | Path/File access error | Can happen if you try and save a report over an existing report that is being edited by Word. Either save the file with a different name or close the program that is editing the file. |
| 76 | Path not found | When the program tries to access a file in a path that no longer exists. |
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