We often get reports of SageMath 8.x works but not SageMath 9.0
but it usually turns out that in such cases, the version that works was installed under macOS 10.14 Mojave, and that what is causing problems is that the version that fails to work was installed under macOS 10.15 Catalina. Have a look at previous such reports: - Mac OS Catalina Does Not Allow Launching Sage https://ask.sagemath.org/question/48246 - how to unlock sagemath 8.8 on MacOS 10.15 Catalina? https://ask.sagemath.org/question/48293 - New SageMath 9.0 installation not running on Catalina https://ask.sagemath.org/question/49568 - Sage 9.0 installation issues on macOS 10.15.2 Catalina https://ask.sagemath.org/question/49572 Let us know if any solution proposed there solves your problem. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/f37024c2-2331-48e5-b589-51f7b14bd101%40googlegroups.com.
