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Re: Error message

From: ah
Subject: Re: Error message
Date: Sun, 23 Jun 2019 12:47:17 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1

On 23/06/2019 08:38, Craig Dabelstein wrote:
Hi Lilyponders,

Can anyone tell me what this error message means when trying to compile a

Drawing systems...
<0>: failed assertion `d == 1 || d == -1'

Exited with exit status 1.

All the best,


Can it be that the file you try to compile contains an error?

I am just starting and I am not acquainted with Lilypond at all but I had a look at the source code. The "d" the failed assertion refers to is of type "Direction" and must be 1 or -1. No other values are allowed when calling the "at()" method.


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