ble_app_hrs_nfc_pairing example not building

[Aleksa]

Hi,

I was looking for an example that combines NFC functionality with BLE for pairing purposes so I was pleasantly surprised when I found that there is such an example. Normally I opened the solution in SES and expected it to build out of the box but I get a very strange error.

In file nrf_crypto_rng_backend.h compiler throws an error "nrf_hw_backend_rng_mbedtls.h: No such file or directory". I verified in the project options in preprocessor tab that ../../../../../../../components/libraries/crypto/backend/nrf_hw is included. Also, I can "go to included file" and find it so to me it seems that it is in fact included in the project.

So how should I proceed in getting the example to build correctly so I can evaluate it?

Thanks,

Aleksa

[awneil]

Aleksa said:

 I verified in the project options in preprocessor tab that ../../../../../../../components/libraries/crypto/backend/nrf_hw is included

and is the nrf_hw_backend_rng_mbedtls.h file in that folder? Or in any other folder that the compiler will be searching ?

note that it's a relative path - are you sure it's relative to the right place?

Aleksa said:

I can "go to included file" and find it so to me it seems that it is in fact included in the project.

The code browsing is separate from the compiler's searching for include files.

However, if you can find it then, then you know where it is - and can check that its location is included amongst the include paths

[Aleksa]

OK, so when I go to the nrf_hw_backend_rng_mbedtln.h file location it is in the correct folder. It would be very helpful if you could maybe verify that the example builds on your machine just to be sure.

[awneil]

which SDK version, and which SES version are you using?

[Aleksa]

The SDK version is nRF5_SDK_17.0.0_9d13099 at it appears in my folder. As for SES version it is 5.10.

[awneil]

sorry - I don't have SDK 17 at the moment.

[Aleksa]

So are you suggesting that I should downgrade to SDK 16? Can you point me to the version of SDK that does build the example?

[awneil]

probably better to wait for someone who has 17 to verify.

Or just investigate further: it's a standard 'C' thing - not specific to Nordic or SES ...

[Aleksa]

Yeah, it's a standard C thing in the example that is provided by your official release of SDK so I think that asking for support here is appropriate.