SOLVED Test install error
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 Hello, I'm trying to test install a font and am running into the following error: Traceback (most recent call last): File "/Applications/RoboFont.app/Contents/Resources/lib/python3.6/fontCompiler/tools/compileTools.py", line 279, in _executeCommand File "/Applications/RoboFont.app/Contents/Resources/lib/python3.6/fontCompiler/tools/compileTools.py", line 322, in embedded_makeotf File "makeotf.py", line 2578, in runMakeOTF externalFrameworks.fdkTools.makeotf.MakeOTFRunError Could not write DSIG tables in font. Not a TrueType or OpenType font (not enough data) -------------------- -------------------- Installing Archa Light failed The file is not a recognized or supported font file format. -------------------- --------------------Any suggestions? Cheers 
 
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 Rock star. My tcarons and tbars had picked up the wrong (duplicate) unicodes from bad Glyphbuilder code. Cheers for that. 
 
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 The problem seems to be this: 
 ... multiple glyphs (tcaron,Tcaron) mapped to code <165>\n'...
 This twitter thread talks about this issue.
 
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 Thanks for responding. I'm using RF 3.2. I tried a normal generate and it created an OTF font, but with zero bytes. The first time that I ran it the traceback had a number of individual letter instances about duplicate points, so I ran it again with "remove overlap" on. This time it again generated a zero byte OTF, but the trackback is a much more manageable: autohint Report Hinting font font.otf. Start time: Fri Aug 30 10:29:57 2019. ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Saving font file with new hints...Fri Aug 30 10:30:50 2019 Done with font font.otf. End time: Fri Aug 30 10:30:50 2019. makeotf Report makeotf [Note] setting the USE_TYPO_METRICS OS/2 fsSelection bit 7 from fontinfo keyword. makeotf [Note] setting the WEIGHT_WIDTH_SLOPE_ONLY OS/2 fsSelection bit 8 from fontinfo keyword. makeotf [Note] setting the OBLIQUE OS/2 fsSelection bit 9 from fontinfo keyword. b'makeotfexe [FATAL] <Archa-Light> cmap{plat=3,script=1,lang=0}: multiple glyphs (tcaron,Tcaron) mapped to code <165>\n' makeotf [Error] Failed to build output font file 'Archa_light_design-rough.otf'. None Traceback (most recent call last): File "/Applications/RoboFont.app/Contents/Resources/lib/python3.6/fontCompiler/tools/compileTools.py", line 279, in _executeCommand File "/Applications/RoboFont.app/Contents/Resources/lib/python3.6/fontCompiler/tools/compileTools.py", line 322, in embedded_makeotf File "makeotf.py", line 2578, in runMakeOTF externalFrameworks.fdkTools.makeotf.MakeOTFRunError Could not write DSIG tables in font. Not a TrueType or OpenType font (not enough data)Fortunately the UFO file is still accessible so I haven't lost any work, but if I can't generate then it is a problem. I was wondering if perhaps creating a new blank UFO file and then just copying the glyphs into it would work? At a loss. Cheers 
 
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 RoboFont was unable to generate a binary, could you try it with a normal generate and see the traceback. Weird the FDK traceback is not showing in your traceback. What version of RF are you using? 
 
