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  VS Arduino › › › error: stray '\' in program
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herve
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error: stray '\' in program
Oct 10th, 2020 at 5:06pm
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Hello,

On Visual Studio 2019 (same problem with VS 2017) and with the last version of visual micro, I get an error very strange I can't resolve by now Sad

"Stray '\' in program" !

As you can see in screenshot attached there is nothing on line 23 ! I also edited the file in a hexa editor to detect eventually strange characters but nothing special !

I have this problem on many .ino files ! this is only an example among other.

Please note also that with the arduino editor the same project compile without any problem !

Could you help me to understand ?

Let me know if you want/need more detail.

Thanks in advance,

Compiling debug version of 'HorlogeNTP' for 'LOLIN(WEMOS) D1 R2 & mini'
 
HorlogeNTP.ino: 23:1: error: stray '\' in program
 
HorlogeNTP.ino: 23:1: error: stray '\' in program
 
HorlogeNTP.ino: 23:34: error: request for member 'iram' in '"\\"', which is of non-class type 'const char [2]
 
HorlogeNTP.ino: 23:44: error: expected unqualified-id before string constant
 
HorlogeNTP.ino: 23:91: error: section attribute not allowed for 'void TimerHandler()
Error compiling project sources
Debug build failed for project 'HorlogeNTP'

  
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Tim@Visual Micro
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Re: error: stray '\' in program
Reply #1 - Oct 10th, 2020 at 5:15pm
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Hi

Please try the latest release which is ready for gallery submission. You can find it here

https://www.visualmicro.com/forums/YaBB.pl?board=VS_ARDUINO_EXT_RELEASES

That issue will be related to the prototypes that have to be added during build if they are missing from the .ino code. They are inserted into a temp copy of the code which is why you get a strange location report.
  
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herve
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Re: error: stray '\' in program
Reply #2 - Oct 10th, 2020 at 6:23pm
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Hello.

I had a good hope, unfortunately no, exactly the same errors after build. Sad

Thanks,

  
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Tim@Visual Micro
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Re: error: stray '\' in program
Reply #3 - Oct 10th, 2020 at 6:27pm
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Okay thanks, please follow the guide in yellow above.
  
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Re: error: stray '\' in program
Reply #4 - Oct 10th, 2020 at 7:08pm
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Please find required output file attached.

Let me know if I did something wrong in content.

Many thanks.
  
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Tim@Visual Micro
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Re: error: stray '\' in program
Reply #5 - Oct 10th, 2020 at 9:19pm
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Thanks, last request please email this file to us along with a link to this thread

Code
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rlogeNTP.cpp


Thanks
  
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shrimant
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Re: error: stray '\' in program
Reply #6 - Oct 11th, 2020 at 10:46am
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Exact same issue with me on Visual Studio 2019  on a line which has absolutely no issues at all." stray `\' in program"

Have wasted almost 4-5 days because of this error. So here is what fixed it for me:


Any version after August 2020 has this problem, please fix this issue when possible.
« Last Edit: Oct 11th, 2020 at 10:49am by shrimant »  
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Re: error: stray '\' in program
Reply #7 - Oct 11th, 2020 at 11:33am
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Thanks shrimant. I'm going to wait the investigation of support  with the current and last version and I will try also this august release in a separate PC/installation. Thanks again.
  
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Re: error: stray '\' in program
Reply #8 - Oct 11th, 2020 at 1:42pm
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Hi,

Thanks for the information and sorry that this problem was introduced last month as a result of "fixing" another issue. There will ne a release over the next day or two that resolves.

Thanks again!
  
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Re: error: stray '\' in program
Reply #9 - Oct 12th, 2020 at 2:59am
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herve wrote on Oct 11th, 2020 at 11:33am:
Thanks shrimant. I'm going to wait the investigation of support  with the current and last version and I will try also this august release in a separate PC/installation. Thanks again.


I went thru hell , I re-installed Visual studio and Arduino 3 times, I even reformatted my laptop, little did I doubt that it could be VMicro. Have finally done some productive work after I found out yesterday what was the root cause.

So far so good no issues with the August build. I am a person who keeps everything on Auto-update mode, but seriously would have to think from now on.
  
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Re: error: stray '\' in program
Reply #10 - Oct 12th, 2020 at 11:08am
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Hello,

To support team : I confirm that works with august release. I did test on another PC to able to investigate this issue and help.

Thanks,

Regards.
  
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Re: error: stray '\' in program
Reply #11 - Oct 12th, 2020 at 11:39am
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Thanks for the updates and confirmations, we are currently working on the fix for this and we will update as soon as a release is available with the fix included.
  
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Re: error: stray '\' in program
Reply #12 - Oct 12th, 2020 at 11:54am
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Ok, great !

Please note also that all my other projects with the same kind of problem works also with this august release (it's not a isolate resolution). No more problem and compile are fine, as usual !

Let me know if you need additional information from me.

Regards.
  
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Re: error: stray '\' in program
Reply #13 - Oct 12th, 2020 at 3:20pm
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We have an update which should resolve this issue (20.09.10.8), available at the top of the below board:
https://www.visualmicro.com/forums/YaBB.pl?board=VS_ARDUINO_EXT_RELEASES

If there are any issues please let us know, and thanks again to all for the information.
  
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Re: error: stray '\' in program
Reply #14 - Oct 12th, 2020 at 3:43pm
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YESS ! It works for me ! Smiley

Many thanks for your support. Great help.

Regards.
« Last Edit: Oct 13th, 2020 at 12:44pm by herve »  
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