# Render pdf file with errors: Invaild Char etc

**URL:** <https://www.ruby-forum.com/t/render-pdf-file-with-errors-invaild-char-etc/195777>\
**Category:** Rails\
**Created:** [September 30, 2010, 12:54am UTC](https://www.ruby-forum.com/t/render-pdf-file-with-errors-invaild-char-etc/195777 "2010-09-30T00:54:39Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![joeyweijiang](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/3d9bf3/32.png) [@joeyweijiang](https://www.ruby-forum.com/u/joeyweijiang)\
**Post date:** [September 30, 2010, 12:54am UTC](https://www.ruby-forum.com/t/render-pdf-file-with-errors-invaild-char-etc/195777/1 "2010-09-30T00:54:39Z")

</div>

Hello G.s,

I write some codes to render a pdf file into a view page. For some  
pfd file, they works fine, while others files got different errors. The  
errors are like:

```
Invalid char `\XXX' in expression, OR
unexpexted tCONSTANT / tIDENTIFIER, expecting 'XX' ...

Do you guys have any idea how to get ride of these errors?

--> Here is my action:

```

def show\_pdf  
respond\_to do |format|  
format.pdf do  
render :file =\>params[:pdfName]+’.pdf’, :layout =\> false  
end  
end  
end

```
--> Errors in Log file:

```

Processing Admin::TracksController#show\_pdf (for 64.180.102.109 at  
2010-09-22 16:31:44) [GET]  
Parameters: {“name”=\>“test”, “action”=\>“show\_pdf”,  
“controller”=\>“admin/tracks”}  
Rendering /test.pdf

ActionView::TemplateError (compile error  
/home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820:  
Invalid char `\237' in expression /home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820: Invalid char`\237’ in expression  
/home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820:  
Invalid char `\036' in expression /home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820: Invalid char`\005’ in expression  
/home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820:  
Invalid char `\231' in expression /home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820: Invalid char`\223’ in expression  
/home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820:  
syntax error, unexpected tIDENTIFIER, expecting kDO or ‘{’ or ‘(’  
…:úŒ-ŸŸ;aR\<Ë‘ÄÓ‰÷ÛjX™“çRãk++jÑÊÕUuïYˆsÌÆu.¢˜°I"Ç‘ЇuÃœa…  
^  
/home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820:  
Invalid char `\217' in expression /home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820: Invalid char`\242’ in expression  
/home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820:  
Invalid char `\230' in expression /home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820: Invalid char`\027’ in expression  
/home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820:  
Invalid char `\260' in expression /home/app/rails/app/vendor/extensions/track/app/views/test.pdf:820: syntax error, unexpected tSTRING_BEG, expecting kEND ...™“çRãk++jÑÊÕUuïYˆsÌÆu.¢˜°I"Ç'ЇuÃœa±ÍrD·-µò´DÇç... ^ /home/app/rails/app/vendor/extensions/track/app/views/test.pdf:822: syntax error, unexpected tIDENTIFIER, expecting kEND ...夛¤IbÐØ<øâžyÒ§Ú‘snAÐ¥Ç63"Ä´ ×‰A£5P¦…Ÿ=¹t¯Ø*'[åø¸M‘ÆVÞl¼... ^ /home/app/rails/app/vendor/extensions/track/app/views/test.pdf:822: Invalid char`\240’ in expression) on line #820 of  
vendor/extensions/track/app/views/test.pdf:  
817:  
3Ðåf$ÌÒtɆ‡7½%Ëe·ø@¦NU鞶»U¯¨’¼Ð“éµK:e¾N4aêý#þ9œcB$’6êš=žçCßp|1›Ì摘ÿ  
818:  
Lš2ïWÕ/.Ûurñ­^é=(«š\<ý¯ÜûÉšaßݹÁP¶šß.®¬˜\SúêæÖwþÞ}¯Ë$q©ëëfþrÁ_—®8·ûß=žÄ;Çaå:‡û¦¶€N÷Ñ  
€IcF¥ª„þ0a’žúl9?;DÅ“fªÐQºU°  
F4  
³œhxH˜TTŽÍA}aD• ¶ãpnc4ïÍî[}äÚÃZkO!â8où²90Á™:¾caúñ_”‡me6aÔO¯þ±iìÌ™7¡  
Ÿ˜€g-ŸÈW@ ÒÍRPX¨B—ºC†˜:b¹òá°„¥Â×јsó\_p  
:œÃt„Iýn¼6¼_kð¤€CÃÒ´’ˆ0`•jNƒw^žä0µ 819: ðŒ‚WA­€×ÄK!á‚påB,ÇG´ /›±|Z9ÐAÓpºSÿöUßµ˜‚î Ö¶|ôJ¦éis`  
Lw†s0w_Ÿ]§÷0`-Î s£í6À9RÕ¬×frhÕl»à °µ»Û„mjµÖkŠ§á¥iœì^ã" $…úä„.;9B!ÙÆý†áUÖacëižsfxCůá#2y¸-fªþKý…EEnN«Lk|yó®·O*|aêd>uñâAƒHU•¬)›6õ7P…6wLÑÔ¶½MŸÌát+òÇ•Î2ÙöaÇP½oºaßíu|·&Ùá­à …€]g <{X‡ mÚ#Ò6ž¶&УxÎ+挢ù,[ÔpäÀÛÓînE£ÖµHýB 820: ÔDÑÈZI4N¤˜ãÆ͘’›‹Ò Ÿ¼¼ì@cðãÙ«íô—ÍèöÞÜ6 á¦p!Ë ¤_ÐèôgôdZñZ o~×é8Ùqï]’A’,V k;+ˆí|e» 8ô^HòÒ¹’—eãëù s(Bæ~ã*£<%kÈÿí ÑÚóèR?;ýí¡Cßž:ú Œ-ŸŸ;aR<Ë'ÄÓ‰÷ÛjX™“çRãk++jÑÊÕUuïYˆsÌÆu.¢˜°I"Ç'ЇuÜa±ÍrD·-µò´DÇç ¯Á&tã Ex+;R£ƒé„‹r§‹ò Ö±jÎGÛ·ì/[á€ZDÍFýÛם‚9Í›†üÅÓ –á 821: ¹ÿÑ]-@Q]gø?çܽû`—}°/@–— à _+Âò°]  
µ„Zƒ)ÍJ‹µtƒˆZ²Šu¨µ¶15Ç:ZëLXè:Qe­M«±36“é8ŽãÀÄÉÄZmѸ\úŸ{ïjÛ½ó͹{çü÷ÿþÇw‚Õä&bWúÏ  
¡\>˜¯£š´ñ÷¹£šáŒÂaÛ@ƐϘCtÀòÜæ$’ŸS’—ïöùd/rŸ¹Ôºxo‚ïïî\_æYËu¼ê¶ENâ·«¥‹£•G¬Òʸo!MÚ‰P^¿¢’Sœž¿¶ñg¾²…ù‹ŠÕÕùºAîÔ¿(©ª\_¤,îY¿áa^é¤.CûdzK˯ýÑòʪêšòß½»Î”žùæ+J=@‰f  
”Ó’Ì:‡ur6…Åto=ÉicT€¥nK¼òR¼òª¼×›@adQsåJîrd)éåwd[a;:¾¿ÛÌÃó6nd®tÿb;cïÑœ‚Î+ñîO©u¡?çÂøj°(=3ÃbEßÙMçE}^Ôž3$ž³dÄ  
822: ­CFzC¾\>;ü.\_¡Z îaA¡ÿQU%$Tí\<¯S‰ÇفPâ×$’̺$u¥g  
ï8=J‰žù‹BUY›B¿øñ‰ç^öJÒ÷V,)©Ã€iùå`ñòºÝ?ÌÊÛ°­±:Hià 1„B½öIŸ~²ëñ¿³•çY»ÌfÅ’_Yk1ÑfÔƒ9*‘$1}©2XlW´>¯¤h8oVYiZ•Íaž¨¹&†ìm씯-I¾òúe˜×)ËWýtO¼›é6ÕkÛÔ\ô#Ê-²×cØ×<AhbdD)`±i“7ãWÂ¥`Oã夛¤IbÐØ\<øâžyÒ§Ú‘snAÐ¥Ç63"Ä´ ×‰A£5P¦…Ÿ=¹t¯Ø_’[åø¸M‘ÆVÞl¼Lܠ 
823:  
ÿ$©Òm’+Ý:Y"ü&9.ÕM•ëß–^þ´ÒÔ‘à ^,²Æå‰Ð,QPºTîbdd¡rœïõ¸møšž˜!Ã5¢#c©ÐÏq3ê+3a°¼8[6Ï´¸,á•LÃíÂx¼r¼˜·a®Np¿CÉ©§Ý\<sÒóhᎍÏíð”lûÆÞ}Òe«ë\*¤G¥µ+¿"D"Ïׯy¦¡öÐÏã{èØÞÆç·L¹èƒ—›[6N¬£Í)°4˜f3#\*í10jS¨W™Wlœ!ߪ&’×ñßì‹ó·6pö—T-/"áúÕ

```
vendor/extensions/track/app/views/test.pdf:822:in `compile!'
vendor/radiant/vendor/plugins/haml/rails/./lib/haml/helpers/action_view_mods.rb:14:in

```

`render' vendor/extensions/track/app/controllers/admin/tracks_controller.rb:39:in`show\_pdf’  
vendor/extensions/track/app/controllers/admin/tracks\_controller.rb:35:in  
`show_pdf' vendor/radiant/vendor/plugins/haml/rails/./lib/sass/plugin/rails.rb:19:in`process’  
passenger (2.2.5)  
lib/phusion\_passenger/rack/request\_handler.rb:95:in `process_request' passenger (2.2.5) lib/phusion_passenger/abstract_request_handler.rb:207:in`main\_loop’  
passenger (2.2.5)  
lib/phusion\_passenger/railz/application\_spawner.rb:378:in  
`start_request_handler' passenger (2.2.5) lib/phusion_passenger/railz/application_spawner.rb:181:in`spawn\_application!’  
passenger (2.2.5) lib/phusion\_passenger/utils.rb:183:in `safe_fork' passenger (2.2.5) lib/phusion_passenger/railz/application_spawner.rb:153:in`spawn\_application!’  
passenger (2.2.5) lib/phusion\_passenger/spawn\_manager.rb:272:in  
`spawn_rails_application' passenger (2.2.5) lib/phusion_passenger/abstract_server_collection.rb:80:in`synchronize’  
passenger (2.2.5)  
lib/phusion\_passenger/abstract\_server\_collection.rb:79:in `synchronize' passenger (2.2.5) lib/phusion_passenger/spawn_manager.rb:255:in`spawn\_rails\_application’  
passenger (2.2.5) lib/phusion\_passenger/spawn\_manager.rb:154:in  
`spawn_application' passenger (2.2.5) lib/phusion_passenger/spawn_manager.rb:287:in`handle\_spawn\_application’  
passenger (2.2.5) lib/phusion\_passenger/abstract\_server.rb:352:in  
` __send__' passenger (2.2.5) lib/phusion_passenger/abstract_server.rb:352:in`main\_loop’  
passenger (2.2.5) lib/phusion\_passenger/abstract\_server.rb:196:in  
`start\_synchronously’

Rendering /home/app/rails/app/public/500.html (500 Internal Server  
Error)