runtime error

Exit code: 1. Reason: objects are masked from ‘package:base’: intersect, setdiff, setequal, union Attaching package: ‘data.table’ The following objects are masked from ‘package:dplyr’: between, first, last Loading required package: ggplot2 Loading required package: lattice Attaching package: ‘httr’ The following object is masked from ‘package:caret’: progress Attaching package: ‘arrow’ The following object is masked from ‘package:utils’: timestamp Error in `mutate()`: ℹ In argument: `is_strike_swinging = ifelse(is_strike_swinging, 1, 0)`. Caused by error: ! object 'is_strike_swinging' not found Backtrace: ▆ 1. ├─shiny::runApp(host = "0.0.0.0", port = 7860) 2. │ ├─shiny::as.shiny.appobj(appDir) 3. │ └─shiny:::as.shiny.appobj.character(appDir) 4. │ └─shiny::shinyAppDir(x) 5. │ └─shiny:::shinyAppDir_appR("app.R", appDir, options = options) 6. │ └─shiny (local) appObj() 7. │ └─shiny (local) func(fname, ...) 8. │ └─shiny:::sourceUTF8(fullpath, envir = new.env(parent = sharedEnv)) 9. │ └─base::eval(exprs, envir) 10. │ └─base::eval(exprs, envir) 11. │ ├─shiny::..stacktraceon..(...) at /code/app.R:1:1 12. │ └─timstuff(MLB24T) at /code/app.R:120:1 13. │ └─game %>% ... at /code/app.R:52:3 14. ├─dplyr::mutate(...) 15. ├─dplyr:::mutate.data.frame(...) 16. │ └─dplyr:::mutate_cols(.data, dplyr_quosures(...), by) 17. │ ├─base::withCallingHandlers(...) 18. │ └─dplyr:::mutate_col(dots[[i]], data, mask, new_columns) 19. │ └─mask$eval_all_mutate(quo) 20. │ └─dplyr (local) eval() 21. ├─base::ifelse(is_strike_swinging, 1, 0) 22. └─base::.handleSimpleError(...) 23. └─dplyr (local) h(simpleError(msg, call)) 24. └─rlang::abort(message, class = error_class, parent = parent, call = error_call) Execution halted

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