Package check result: ERROR

Check: tests, Result: ERROR
    Running ‘testthat.R’ [5s/4s]
  Running the tests in ‘tests/testthat.R’ failed.
  Complete output:
    > require(proxyC)
    Loading required package: proxyC
    
    Attaching package: 'proxyC'
    
    The following object is masked from 'package:stats':
    
        dist
    
    The following objects are masked from 'package:base':
    
        crossprod, tcrossprod
    
    > require(testthat)
    Loading required package: testthat
    > test_check("proxyC")
    [ FAIL 1 | WARN 0 | SKIP 18 | PASS 274 ]
    
    ══ Skipped tests (18) ══════════════════════════════════════════════════════════
    • {entropy} is not installed (3): 'test-dist.R:40:5', 'test-dist.R:55:5',
      'test-dist.R:73:5'
    • {proxy} is not installed (15): 'test-dist.R:4:5', 'test-dist.R:10:5',
      'test-dist.R:16:5', 'test-dist.R:22:5', 'test-dist.R:32:5',
      'test-simil.R:25:5', 'test-simil.R:31:5', 'test-simil.R:37:5',
      'test-simil.R:44:5', 'test-simil.R:51:5', 'test-simil.R:65:5',
      'test-simil.R:72:5', 'test-simil.R:79:5', 'test-simil.R:85:5',
      'test-simil.R:91:5'
    
    ══ Failed tests ════════════════════════════════════════════════════════════════
    ── Error ('test-dist.R:108:5'): test jensen shannon distance ───────────────────
    <packageNotFoundError/error/condition>
    Error in `loadNamespace(x)`: there is no package called 'entropy'
    Backtrace:
        ▆
     1. ├─testthat::expect_equal(d1, entropy::KL.empirical(p1, m)) at test-dist.R:108:5
     2. │ └─testthat::quasi_label(enquo(expected), expected.label, arg = "expected")
     3. │   └─rlang::eval_bare(expr, quo_get_env(quo))
     4. └─base::loadNamespace(x)
     5.   └─base::withRestarts(stop(cond), retry_loadNamespace = function() NULL)
     6.     └─base (local) withOneRestart(expr, restarts[[1L]])
     7.       └─base (local) doWithOneRestart(return(expr), restart)
    
    [ FAIL 1 | WARN 0 | SKIP 18 | PASS 274 ]
    Error: Test failures
    Execution halted