Running ‘spelling.R’ [0s/1s]
  Running ‘testthat.R’ [60s/101s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > library(testthat)
  > library(iGraphMatch)
  Thanks for using iGraphMatch!
  We'd love to get feedback on what you like, what you don't like,
  and how you are using the package.
  See ?iGraphMatch for contact information.
  > 
  > test_check("iGraphMatch")
  [ FAIL 3 | WARN 0 | SKIP 22 | PASS 149 ]
  
  ══ Skipped tests (22) ══════════════════════════════════════════════════════════
  • On CRAN (22): 'test-Isorank.R:16:3', 'test-Isorank.R:23:3',
    'test-Isorank.R:48:3', 'test-customized_gm_method.R:32:3',
    'test-gm_PATH.R:32:3', 'test-gm_expand_when_stuck.R:11:3',
    'test-graph_match_class.R:22:3', 'test-init_start.R:30:3',
    'test-init_start.R:37:5', 'test-init_start.R:50:3', 'test-init_start.R:57:3',
    'test-init_start.R:63:5', 'test-init_start.R:88:3',
    'test-init_start.R:112:5', 'test-init_start.R:162:5', 'test-lap.R:61:5',
    'test-perco.R:12:3', 'test-perco.R:20:3', 'test-perco.R:26:3',
    'test-perco.R:38:3', 'test-perco.R:51:3', 'test-splr_matrix_class.R:35:3'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-umeyama.R:16:3'): matching correspondence between graph1 and graph2 ──
  Error: 'tcrossprod' is not an exported object from 'namespace:Matrix'
  Backtrace:
      ▆
   1. └─iGraphMatch::gm(A, B, seeds, startm, method = "Umeyama") at test-umeyama.R:16:2
   2.   └─iGraphMatch:::graph_match_Umeyama(A, B, seeds, similarity)
  ── Error ('test-umeyama.R:33:3'): matching correspondence between graph1 and graph2 for directed graphs ──
  Error: 'tcrossprod' is not an exported object from 'namespace:Matrix'
  Backtrace:
      ▆
   1. └─iGraphMatch::gm(A, B, seeds, startm, method = "Umeyama") at test-umeyama.R:33:2
   2.   └─iGraphMatch:::graph_match_Umeyama(A, B, seeds, similarity)
  ── Error ('test-umeyama.R:50:3'): Umeyama multi-layer ──────────────────────────
  Error: 'tcrossprod' is not an exported object from 'namespace:Matrix'
  Backtrace:
      ▆
   1. └─iGraphMatch::gm(A, B, seeds, method = "Umeyama") at test-umeyama.R:50:2
   2.   └─iGraphMatch:::graph_match_Umeyama(A, B, seeds, similarity)
  
  [ FAIL 3 | WARN 0 | SKIP 22 | PASS 149 ]
  Error: Test failures
  Execution halted