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Re: [Discuss-gnuradio] Circular dependency caught in sort_variables only

From: Tom Rondeau
Subject: Re: [Discuss-gnuradio] Circular dependency caught in sort_variables only String type
Date: Mon, 6 Oct 2014 11:00:40 -0400

On Mon, Oct 6, 2014 at 4:39 AM, Murray Thomson <address@hidden> wrote:

I'm getting this error with string type variables using gnuradio 3.7.5 and I cannot figure out how to solve it. I'm using a normal variable plus a config variable in this way:

   id: variable_A
   value: config_variable_A

Variable Config:
   id: config_variable_A
   WriteBack: variable_A

This way the variable reads the config file at the start and the variable config writes the latest value of the variable at the end. It works very well with Integers.

When I change the Config variable type to "String" and I generate the flow graph, I get the error:

Generate Error: circular dependency caught in sort_variables

Could anyone please help me to get this behaviour for a String type variable please?

Thank you,

Yeah, this is a fundamental issue with the way that the GRC templates are formatted and described. The circular issue has come up rarely in the past, but it's certainly been a problem for me here and there.


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