To veterans : What is Insane Object at ~

[81452]

This is the first error I encountered.

It says "Insane object at FPHP+EB~ " and

"Fatal InternalError : "fpsane.cpp*, line 321"".

Please let me know what makes this error and how to handle it.

For your reference I attached my simple code for IFFT and input data(1 complexnumber in 2 column) file.

*Error occures only when I made any Modification in my code and try to rerun.

[Odd_Modem]

Insane objects are problems with the binary structure of the vi file, AFAIK. You can try opening a vi hierarchy from the inside out, selecting all block diagram objects and copying to a new vi, or upgrading an old vi in smaller steps. I'm sure there are other techniques that people have found that deal with this issue.

[CoastalMaineBird]

It's got nothing to do with your data file - a VI file has been corrupted.
NEVER SAVE A VI AFTER GETTING THIS ERROR. At least, never save it over the last good copy.

It happens occasionally. Sometimes, quitting LV and restarting will get rid of it.
Other times, you have to go to your backup and start again from there.