R Session Startup Failure

R Session Startup Failure Report

RStudio Version

RStudio 1.4.1717, "Juliet Rose" (df86b69e, 2021-05-24) for macOS

Mozilla/5.0 (Macintosh; Intel Mac OS X 11_4_0) AppleWebKit/537.36 (KHTML, like Gecko) QtWebEngine/5.12.10 Chrome/69.0.3497.128 Safari/537.36

Error message

[No error available]

Process Output

The R session exited with code 1.

Error output:

arch: Unknown architecture: arm64

Standard output:

[No output emitted]


Log File

[No logs available]

System Information:

  • RStudio Edition: (Desktop or Server)
  • RStudio Version:
  • OS Version:
  • R Version:
  • Output your diagnostics report (if possible):

From RStudio Desktop Will Not Start on support.rstudio.com

Hello, I also encountered the same problem. Is your problem solved?Thanks very much!

Yours Changyang

Any chance that you have a Mac with an Intel CPU and installed R 4.1 for Big Sur from mac.r-project.org? That build is only for a Mac with the M1 CPU. That would explain the "arch: Unknown architecture: arm64" error message when the R session exited with code 1.

The R for macOS Developers site has this warning:

Important: The big-sur builds are compatible with the M1 arm-based Macs only. Intel Macs are supported by the high-sierra build which works on any macOS >=10.13 including Big Sur.

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