Invalid type specifier

Hello,

I have build a simple test OOT block to learn and play with vectors. My
OOT block written in C++ is between a file data source and a file data sink.

The gcc compilation is error free. All is OK, my block works fine, the
resulting data are consistent.

However, at the start of the execution in GRC, I get the following error
message:

[*** LOG ERROR #0001 ***] [2022-07-09 17:52:42] [test_bvb] {invalid type
specifier}

Probably something wrong !


I work under:
Ubuntu 20.04.1
GnuRadio 3.10.2
gcc 9.4.0
python 3.8.10


Thank you for your help.



Jeff