What steps will reproduce the problem? 1. Create root-node with some leaves 2. On linear view, select root node 3. Press delete

What is the expected output? What do you see instead? Expected: Root node deleted with all leaves Actual: Semantik crashes

What version of the product are you using? On what operating system? Latest (0.9.1); kde 4.13

b/trace attached

Please provide any additional information below.

In console log: ASSERT: "m_oItems[k] != NULL" in file ../src/canvas_view.cpp, line 556

I'm not really sure that this is a right way of fixing this (canvas_view gets NULL as an item to deselect, change assert to if() check); however this worksforme. Also waf script on python 2.7 tells me that: bld.install_as('${TEMPLATE_DIR}/waf', 'waf', chmod=0755) ^ SyntaxError: invalid token

patch has change for this, too :D

Well, no, disabling an assert does not solve the problem in general, and in this case there was something more serious to fix.

For the compilation issue, blame Python 3 for its idiotic syntax changes.

Update your copy to r6f0f1577586072e709966bcc7a0f700b103180b2

Thank you!