https://devzone.nordicsemi.com/f/nordic-q-a/91939/linking-target-problemsHi, I upgraded my toolchain from xpack-arm-gnu-toolchain (11.2.1) to xpack-arm-gnu-toolchain(11.3.1). I&#39;m developing firmware using Eclipse CDT, Windows Build Tools and xpack toolchain. But after update toolchain, I can&#39;t compile anything. en-USTelligent Community 13Wed, 14 Sep 2022 14:53:31 GMThttps://devzone.nordicsemi.com/thread/386231?ContentTypeID=1Wed, 14 Sep 2022 14:53:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9d776493-9cf0-4884-96c8-09944c6cc534jswcomkr<p>Oh Thanks. I solved this problem by using ARM Toolchain 10.3.1.</p> <p></p> <p>Thank you.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/386178?ContentTypeID=1Wed, 14 Sep 2022 12:42:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f3e51647-d32b-4092-872e-269266ebbe04J&#248;rgen Holmefjord<p>Hi,</p> <p>I&#39;m not sure exactly what the problem is, but you are using a much newer GCC version than the one that our SDK was tested and verified with. We always recommend that you stick to the version that the SDK was tested with, this is noted in the <a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/index.html">release notes of the SDK</a>:</p> <pre>nRF5 SDK v17.1.0 ------------------------ The following toolchains/devices have been used for testing and verification: - ARM: MDK-ARM version 5.25 - <span style="background-color:rgba(255, 255, 0, 1);">GCC: GCC ARM Embedded 9.2020-q2.major</span> - IAR: IAR Workbench 7.80.4 - SES: SES 5.42a</pre> <p>Please try this version and see if you are able to build your application.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>