** (vapigen:8335): CRITICAL **: vala_gir_parser_push_node: assertion 'name != NULL' failed

** (vapigen:8335): CRITICAL **: vala_struct_construct: assertion 'name != NULL' failed

** (vapigen:8335): CRITICAL **: vala_symbol_set_access: assertion 'self != NULL' failed

** (vapigen:8335): CRITICAL **: vala_symbol_set_external: assertion 'self != NULL' failed

** (vapigen:8335): CRITICAL **: vala_symbol_set_comment: assertion 'self != NULL' failed
**
ERROR:arraylist.c:380:vala_array_list_real_get: assertion failed: (index >= 0 && index < _size)

Program received signal SIGABRT, Aborted.
0x00007ffff6c5f967 in raise () from /usr/lib/libc.so.6
(gdb) backtrace
#0  0x00007ffff6c5f967 in raise () from /usr/lib/libc.so.6
#1  0x00007ffff6c60d3a in abort () from /usr/lib/libc.so.6
#2  0x00007ffff725a965 in g_assertion_message () from /usr/lib/libglib-2.0.so.0
#3  0x00007ffff725a9fa in g_assertion_message_expr () from /usr/lib/libglib-2.0.so.0
#4  0x00007ffff7b222a1 in ?? () from /usr/lib/libvala-0.24.so.0
#5  0x00007ffff7a79d89 in ?? () from /usr/lib/libvala-0.24.so.0
#6  0x00007ffff7a88ef4 in vala_gir_parser_parse_file () from /usr/lib/libvala-0.24.so.0
#7  0x00007ffff7a50419 in vala_code_context_accept () from /usr/lib/libvala-0.24.so.0
#8  0x00007ffff7a88029 in vala_gir_parser_parse () from /usr/lib/libvala-0.24.so.0
#9  0x0000000000408168 in ?? ()
#10 0x00007ffff6c4c040 in __libc_start_main () from /usr/lib/libc.so.6
#11 0x000000000040850a in ?? ()