Can't delete block

[Anonymous]

When in part design, I can't delete a block because it says the part contains one or more of its istances.

I tryed to delete one by one all the features of part to find if there were some hidden relations I can't find, but even when I deleted all the features (I have an empty tree) it is not possible to delete the block.

See following screenshot I took.

The block initially contained some sketch objects, at the end I also tryed to delete all the objects to have an empty block (it remains only the reference point).

I really can't figure out how to solve.

[bradeneuropeArthur]

Read this:

https://forums.autodesk.com/t5/inventor-forum/inventor-sketch-block-will-not-delete/td-p/9511223

Corrupted File!

[bradeneuropeArthur]

This will solve with some i-logic code:

Dim a As PartDocument = ThisDoc.Document

MsgBox(a.ComponentDefinition.Sketches.Count)

a.ComponentDefinition.Sketches.Item(1).Delete

[bradeneuropeArthur · Accepted solution]

Better first to check the sketch for no Name ""

Dim a As PartDocument = ThisDoc.Document

For Each s As Sketch In a.ComponentDefinition.Sketches
	If s.Name = "" Then
	
	s.Delete
	
End If
	Next

[Anonymous]

Thank you, this fixed the issue.
I added a line in iLogic to double check and it found there was an unnamed sketch.
This was not visible in the feature tree and I wasn't able to rename it to take a look at what it contained, but removing it had allowed to delete the undesired block.
I suggest to correct also the thread you linked above (Read this: https://forums.autodesk.com/t5/inventor-forum/inventor-sketch-block-will-not-delete/td-p/9511223 Corrupted File!) on this same topic because "ditch the file" it is not a good solution, no one wants to "ditch" hours and hours spent on a file.
Many thanks!

[Mooser91]

Hello @bradeneuropeArthur 

thank you very much for your ilogic code. I tried it in my .ipt and it worked fine. But one block still remains. 

If i try to delete  the empty block, the error message appears. 

And there are also some unused parameters, that cant be deleted.

Do you have any idea to "repair" that file, that i have attached? 

Thank you very much!

[johnsonshiue]

Hi! The ipt file is corrupted. There is a hidden sketch consuming the sketch block. As a result, the block cannot be deleted. If you copy and paste the block to another part, the sketch block can be deleted easily.

Many thanks!