It might sound silly, but do you have PHP installed, more specifically libapache2-mod-php7.whatever (I think install-build-deps.sh covers that)?

Thanks. No, I didn't have it installed and I didn't need it until now. I used to run blink tests with third_party/WebKit/Tools/Scripts/run-webkit-tests successfully. I'm wondering why 'gclient sync' does not take care of installing such dependencies.

> I used to run blink tests with third_party/WebKit/Tools/Scripts/run-webkit-tests successfully.

Were you running http tests in the past as well? Since the Apache configuration files haven't changed recently, the only reason I can think of for it having worked before is that you didn't need Apache and were only running tests outside LayoutTests/http.

Yes I was running http tests before. It's possible that I lost the dependencies when switching my workstation from goobunto to glinux. Anyway, thanks for the help.

I started to have this issue a while after I switch to run_web_tests.py. I run it with no issue on my desktop. Today I am using remote desktop, and run into this issue, not sure whether chromoting is related.

build/install-build-deps.sh doesn't help.
gclient sync doesn't help as well.

What else can I try?

Reopen this issue.

Can you paste the errors you're getting and let us know which tests you're trying to run?

It's interesting that only virtual test has this issue. I've just tried normal layout tests with no problem.

python third_party/blink/tools/run_web_tests.py virtual/custom-user-timing/ --num-retries=1 -t Default

===============================
maxlg@maxlg0:~/Develop/gitRepo/chrome/chromium/src$ python third_party/blink/tools/run_web_tests.py virtual/custom-user-timing/ --num-retries=1 -t Default
Using port 'linux-trusty'
Test configuration: <trusty, x86_64, debug>
View the test results at file:///usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/out/Default/layout-test-results/results.html
Using random order with seed: 1542824162
Baseline search path: linux -> win -> generic
Using Debug build
Regular timeout: 18000, slow test timeout: 90000
Command line: /usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/out/Default/content_shell --run-web-tests --ignore-certificate-errors-spki-list=Nxvaj3+bY3oVrTc+Jp7m3E3sB1n3lXtnMDCyBsqEXiY=,55qC1nKu2A88ESbFmk5sTPQS/ScG+8DD7P+2bgFA9iM=,0Rt4mT6SJXojEMHTnKnlJ/hBKMBcI4kteBlhR1eTTdk= --user-data-dir --enable-crash-reporter --crash-dumps-dir=/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/out/Default/crash-dumps -

Found 3 tests; running 3, skipping 0.
Clobbering excess archived results in /usr/local/google/home/maxlg/Develop/gitRe                                                                                logging httpd errors, if any                            
httpd returncode None
httpd no stderr handle
httpd error log (/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/out/Default/layout-test-results/error_log.txt) contents:
  [Wed Nov 21 13:16:04.177869 2018] [ssl:emerg] [pid 159023] AH02562: Failed to configure certificate 127.0.0.1:443:0 (with chain), check /usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/third_party/blink/tools/apache_config/webkit-httpd.pem
  [Wed Nov 21 13:16:04.177938 2018] [ssl:emerg] [pid 159023] SSL Library Error: error:140AB18F:SSL routines:SSL_CTX_use_certificate:ee key too small
  AH00016: Configuration Failed


ServerError raised: Failed to start httpd: no pid file found
Traceback (most recent call last):
  File "/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/third_party/blink/tools/blinkpy/web_tests/run_webkit_tests.py", line 68, in main
    return run(port, options, args, printer).exit_code
  File "/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/third_party/blink/tools/blinkpy/web_tests/run_webkit_tests.py", line 593, in run
    run_details = manager.run(args)
  File "/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/third_party/blink/tools/blinkpy/web_tests/controllers/manager.py", line 160, in run
    self._start_servers(tests_to_run)
  File "/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/third_party/blink/tools/blinkpy/web_tests/controllers/manager.py", line 404, in _start_servers
    self._port.start_http_server(additional_dirs={}, number_of_drivers=self._options.max_locked_shards)
  File "/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/third_party/blink/tools/blinkpy/web_tests/port/base.py", line 1173, in start_http_server
    server.start()
  File "/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/third_party/blink/tools/blinkpy/web_tests/servers/server_base.py", line 102, in start
    self._pid = self._spawn_process()
  File "/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/third_party/blink/tools/blinkpy/web_tests/servers/apache_http.py", line 161, in _spawn_process
    raise server_base.ServerError('Failed to start %s: no pid file found' % self._name)
ServerError: Failed to start httpd: no pid file found

Probably due to this error, which i don't see from the initial bug of neis@.

httpd error log (/usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/out/Default/layout-test-results/error_log.txt) contents:
  [Wed Nov 21 13:36:38.822416 2018] [ssl:emerg] [pid 164692] AH02562: Failed to configure certificate 127.0.0.1:443:0 (with chain), check /usr/local/google/home/maxlg/Develop/gitRepo/chrome/chromium/src/third_party/blink/tools/apache_config/webkit-httpd.pem
  [Wed Nov 21 13:36:38.822484 2018] [ssl:emerg] [pid 164692] SSL Library Error: error:140AB18F:SSL routines:SSL_CTX_use_certificate:ee key too small
  AH00016: Configuration Failed

Right, so that's a different error from the one originally reported here. The best thing would be to file a new bug to track it -- can you CC myself and robertma@?

As it's a different bug, closing this. Opened a bug in crbug/907584.