Cannot build old project - TChannel problem

[Peter]

Hello,

I'm trying to build an old project, created with 0.11.2 version, using Nim 
1.0.2. I'm blocked with the following error:

Error: undeclared identifier: 'TChannel'

I'm using the following options to build the project:

\--threads:on --opt:none --debuginfo --gc:markAndSweep|   
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How can I solve the problem? Is TChannel deprecated?