Intel: Target Connections not recognized in Run/Debug Configuation screen of Nios® II Software Build Tools for Eclipse after writing .sof to FPGA

Nios II

Category: Nios® II
Tools: Nios® II Software Build Tools for Eclipse
device:-

✔ Refer to the content below and check if the frequency of USB Blaster™ II can be lowered to 6MHz to avoid this problem.
[Let's change the TCK frequency of USB-Blaster™ II]
 https://www.macnica.co.jp/business/semiconductor/articles/intel/130581/

✔ If you can't avoid it, make sure you are writing the .sof that Nios® II exists to the FPGA.

✔ If Downloading ELF process failed appears after execution, please refer to the following content.
[Cause of error when running Nios® II "Downloading ELF process failed"]
 https://malt.zendesk.com/hc/ja/articles/900005298186

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