Hi

I am a newbie on this forum, but have been using Visual Micro with Visual Studio 2015 for a little while now. However, I have now hit a perplexing problem.

I'm trying to compile a sketch from 
https://github.com/Azure/azure-iot-arduino-protocol-mqtt/tree/master/examples/si...

I have included the following libraries using the ArduinoIDE  Library Manager
#include <AzureIoTHub.h>
#include <AzureIoTUtility.h>
#include <AzureIoTProtocol_MQTT.h>

Everything compiles and builds fine under Arduino 1.8.1 (using version 2.3.0 of the ESP 8266 Boards Manager file).

However, when I try to compile this using Visual Micro (registered Version 1.1611.21, Version Minor 170119) on Visual Studio 2015 (Community Version 14.0.25431.01 Update 3)  I get the following error

azcpgmspace.cpp:5: In file included from
 
azcpgmspace.h: 15:53: fatal error: azure_c_shared_utility/crt_abstractions.h: No such file or directory
   #include "azure_c_shared_utility/crt_abstractions.h"
   compilation terminated

     An error was encountered during the 'Deep Search' library discovery process.
Build failed for project 'simplesample_mqtt'

When I traced out the calls, the calling file was in 

libraries/AzureIoTHub/src/esp8266/azcpgmspace.h

and the called library that could not be found was in

libraries/AzureIoTUtility/src/azure_c_shared_utility/crt_abstractions.h

Following some of the hints in the forum, I tried turning off Deep Search.

While this then allowed all of the libraries to successfully compile, I came up with another error as follows:-

VM_DBG.h: 51:25: fatal error: ESP8266mDNS.h: No such file or directory
   #include <ESP8266mDNS.h>
   compilation terminated
Error compiling libraries
   error: This hardware might not support the default Serial debugger.
     Try switching the toolbar from 'Debug' to 'Release' and build again. 
           or switch off Automatic Debugging
           or configure the SoftwareSerial debugger option.
Debug build failed for project 'simplesample_mqtt'

I checked that the file was indeed present by successfully using #include <ESP8266mDNS.h> in the main ino file.

Finally, by changing from Debug Mode to Release Mode, everything compiled and built okay, but this is clearly not optimal.

As I will likely need to use Debug Mode to help debug new software based on this example, any help would be greatly appreciated and save me tearing any more hair out

more ...

If using ip address to upload then it's possible the issue is related to the debugger using OTA (over the air upload) when paused at breakpoints. I also noticed the mdns lib was being used by the debugger but not required.

The latest release does not use mdns and only checks for OTA in breakpoints if the OTA library has been included in the project.

It's possible that these two changes will resolve things for you in Debug mode.

There is a link to the next release at the top of this post if you want to try it.

Hi Tim

I downloaded and extracted the 1702.5 pre-release, but was unsure how to install it.

There does not appear to be a VSIX file in the download and there seemed to be no way of updating it from VS2015..

Sorry if this is a newbie question.

Thanks for the tip and I was able to run the installer once I renamed the download file from .ZIP to .VSIX.

I confirmed that Version Minor was now 170205 in Tools->Options->Visual Micro.

Unfortunately, there has been no change to the problem as previously outlined. I can only build successfully with Deep Search disabled and in Release mode.

Would it help if I were to PM you a copy of the verbose build log?

Everything works just fine now with build 1702.15

I have successfully recompiled the Azure + mqtt sample from Microsoft with Deep Search enabled and in Debug Mode.

Thank you kindly for your help and for taking the time to get to the bottom of this.