Builds stuck in queued

Scenario

You configured Anka Build Cloud alongside the Teamcity plugin. You are now trying to run a build but it doesn't start and you are not seeing any new agents connected to Teamcity.
Common reasons

Cloud Profile configuration mistakes; Missing Server URL:
SSH port forwarding not set correctly on VM
The Anka Cloud can't run VMs (see VM is stuck at scheduling)
If the controller has started the VM, you can take a look at the logs inside of the VM and look for the failure logs:
Veertu:~ root# anka run $(anka list | grep mgmtManaged | awk '{print $2}') tail -500 /Users/anka/buildAgent/logs/teamcity-agent.log
[2021-02-08 05:49:34,520]   INFO -   jetbrains.buildServer.SERVER - Starting TeamCity agent
[2021-02-08 05:49:34,522]   INFO - s.buildServer.agent.AgentMain2 -
[2021-02-08 05:49:34,522]   INFO - s.buildServer.agent.AgentMain2 - ===========================================================
[2021-02-08 05:49:34,566]   INFO - s.buildServer.agent.AgentMain2 - TeamCity Build Agent 2020.2.2 (build 85899)
[2021-02-08 05:49:34,585]   INFO - s.buildServer.agent.AgentMain2 - OS: Mac OS X, version 10.16, x86_64, Current user: anka, Time zone: PST (UTC-08:00)
[2021-02-08 05:49:34,589]   INFO - s.buildServer.agent.AgentMain2 - Java: 1.8.0_242, OpenJDK 64-Bit Server VM (25.242-b08, mixed mode), OpenJDK Runtime Environment (1.8.0_242-b08), AdoptOpenJDK; JVM parameters: -ea -Xmx384m -Dteamcity_logs=../logs/ -Dlog4j.configuration=file:../conf/teamcity-agent-log4j.xml
[2021-02-08 05:49:34,589]   INFO - s.buildServer.agent.AgentMain2 - Agent home is "/Users/anka/buildAgent"
[2021-02-08 05:49:34,589]   INFO - s.buildServer.agent.AgentMain2 - Starting...
[2021-02-08 05:49:34,651]   INFO - buildServer.agent.AgentMain2$3 - Refreshing jetbrains.buildServer.agent.AgentMain2$3@7a1ebcd8: startup date [Mon Feb 08 05:49:34 PST 2021]; root of context hierarchy
[2021-02-08 05:49:36,478]   INFO -    jetbrains.buildServer.AGENT - Calculating CPU benchmark index...
[2021-02-08 05:49:36,531]   INFO -    jetbrains.buildServer.AGENT - Agent tools download temp directory created on path /Users/anka/buildAgent/temp/tools
[2021-02-08 05:49:36,861]   INFO - dAgentConfigurationInitializer - Loading build agent configuration from /Users/anka/buildAgent/conf/buildAgent.properties
[2021-02-08 05:49:37,022]   INFO - s.buildServer.agent.AgentMain2 - Working dir: /Users/anka/buildAgent/work
[2021-02-08 05:49:37,022]   INFO - s.buildServer.agent.AgentMain2 - Temp dir: /Users/anka/buildAgent/temp
[2021-02-08 05:49:37,027]   INFO - rver.plugins.PluginManagerImpl - ===========================================================
[2021-02-08 05:49:37,027]   INFO - rver.plugins.PluginManagerImpl - Plugins initialization started...
[2021-02-08 05:49:37,027]   INFO - rver.plugins.PluginManagerImpl - Scanning plugins folders
[2021-02-08 05:49:37,028]   INFO - .plugins.files.JarSearcherBase - Scanning plugin folder: /Users/anka/buildAgent/plugins
[2021-02-08 05:49:37,030]   INFO - .plugins.files.JarSearcherBase - Scanning plugin folder: /Users/anka/buildAgent/tools
[2021-02-08 05:49:37,043]   INFO - rver.plugins.PluginManagerImpl - Found 1 non bundled plugins: [amazonEC2]
[2021-02-08 05:49:37,043]   INFO - rver.plugins.PluginManagerImpl - Found 0 bundled plugins: []
[2021-02-08 05:49:37,045]   INFO - rver.plugins.PluginsCollection - Load shared classloader for 1 plugins [amazonEC2]
[2021-02-08 05:49:37,050]   INFO - rver.plugins.PluginsCollection - No plugins were loaded with standalone classloaders
[2021-02-08 05:49:37,188]   INFO - rver.plugins.PluginManagerImpl - Plugins initialization completed (1 plugins loaded): [amazonEC2]
[2021-02-08 05:49:37,189]   INFO - rver.plugins.PluginManagerImpl - ===========================================================
[2021-02-08 05:49:37,191]   INFO -    jetbrains.buildServer.AGENT - Build Agent version: 85899, plugins signature: NA
[2021-02-08 05:49:37,374]   INFO - dAgentConfigurationInitializer - Loading build agent configuration from /Users/anka/buildAgent/conf/buildAgent.properties
[2021-02-08 05:49:40,752]   INFO - buildServer.agent.AgentMain2$3 - Closing jetbrains.buildServer.agent.AgentMain2$3@7a1ebcd8: startup date [Mon Feb 08 05:49:34 PST 2021]; root of context hierarchy
[2021-02-08 05:49:47,262]   INFO -   jetbrains.buildServer.SERVER - Starting TeamCity agent
[2021-02-08 05:49:47,264]   INFO - s.buildServer.agent.AgentMain2 -
[2021-02-08 05:49:47,264]   INFO - s.buildServer.agent.AgentMain2 - ===========================================================
[2021-02-08 05:49:47,278]   INFO - s.buildServer.agent.AgentMain2 - TeamCity Build Agent 2020.2.2 (build 85899)
[2021-02-08 05:49:47,287]   INFO - s.buildServer.agent.AgentMain2 - OS: Mac OS X, version 10.16, x86_64, Current user: anka, Time zone: PST (UTC-08:00)
[2021-02-08 05:49:47,290]   INFO - s.buildServer.agent.AgentMain2 - Java: 1.8.0_242, OpenJDK 64-Bit Server VM (25.242-b08, mixed mode), OpenJDK Runtime Environment (1.8.0_242-b08), AdoptOpenJDK; JVM parameters: -ea -Xmx384m -Dteamcity_logs=../logs/ -Dlog4j.configuration=file:../conf/teamcity-agent-log4j.xml
[2021-02-08 05:49:47,290]   INFO - s.buildServer.agent.AgentMain2 - Agent home is "/Users/anka/buildAgent"
[2021-02-08 05:49:47,290]   INFO - s.buildServer.agent.AgentMain2 - Starting...
[2021-02-08 05:49:47,326]   INFO - buildServer.agent.AgentMain2$3 - Refreshing jetbrains.buildServer.agent.AgentMain2$3@30a3107a: startup date [Mon Feb 08 05:49:47 PST 2021]; root of context hierarchy
[2021-02-08 05:49:48,831]   INFO -    jetbrains.buildServer.AGENT - Calculating CPU benchmark index...
[2021-02-08 05:49:48,884]   INFO -    jetbrains.buildServer.AGENT - Agent tools download temp directory created on path /Users/anka/buildAgent/temp/tools
[2021-02-08 05:49:49,057]   INFO - dAgentConfigurationInitializer - Loading build agent configuration from /Users/anka/buildAgent/conf/buildAgent.properties
[2021-02-08 05:49:49,092]   INFO - s.buildServer.agent.AgentMain2 - Working dir: /Users/anka/buildAgent/work
[2021-02-08 05:49:49,092]   INFO - s.buildServer.agent.AgentMain2 - Temp dir: /Users/anka/buildAgent/temp
[2021-02-08 05:49:49,095]   INFO - rver.plugins.PluginManagerImpl - ===========================================================
[2021-02-08 05:49:49,095]   INFO - rver.plugins.PluginManagerImpl - Plugins initialization started...
[2021-02-08 05:49:49,095]   INFO - rver.plugins.PluginManagerImpl - Scanning plugins folders
[2021-02-08 05:49:49,096]   INFO - .plugins.files.JarSearcherBase - Scanning plugin folder: /Users/anka/buildAgent/plugins
[2021-02-08 05:49:49,099]   INFO - .plugins.files.JarSearcherBase - Scanning plugin folder: /Users/anka/buildAgent/tools
[2021-02-08 05:49:49,113]   INFO - rver.plugins.PluginManagerImpl - Found 1 non bundled plugins: [amazonEC2]
[2021-02-08 05:49:49,113]   INFO - rver.plugins.PluginManagerImpl - Found 0 bundled plugins: []
[2021-02-08 05:49:49,116]   INFO - rver.plugins.PluginsCollection - Load shared classloader for 1 plugins [amazonEC2]
[2021-02-08 05:49:49,120]   INFO - rver.plugins.PluginsCollection - No plugins were loaded with standalone classloaders
[2021-02-08 05:49:49,244]   INFO - rver.plugins.PluginManagerImpl - Plugins initialization completed (1 plugins loaded): [amazonEC2]
[2021-02-08 05:49:49,245]   INFO - rver.plugins.PluginManagerImpl - ===========================================================
[2021-02-08 05:49:49,247]   INFO -    jetbrains.buildServer.AGENT - Build Agent version: 85899, plugins signature: NA
[2021-02-08 05:49:49,277]   INFO - dAgentConfigurationInitializer - Loading build agent configuration from /Users/anka/buildAgent/conf/buildAgent.properties
[2021-02-08 05:49:54,635]   INFO -    jetbrains.buildServer.AGENT - CPU benchmark index is set to 554
[2021-02-08 05:49:56,376]   INFO - n.AmazonInstanceMetadataReader - Amazon is not available. Amazon EC2 integration is not active: Failed to connect to http://169.254.169.254/2016-04-19. The host did not accept the connection within timeout of 7000 ms
[2021-02-08 05:49:56,416]   INFO - .agent.impl.OsArchBitsDetector - Detecting via "getconf LONG_BIT", exit code: 0, output: 64
[2021-02-08 05:49:56,416]   INFO - .agent.impl.OsArchBitsDetector - "teamcity.agent.os.arch.bits" detected as "64"
[2021-02-08 05:49:56,421]   INFO -    jetbrains.buildServer.AGENT - Start build agent
[2021-02-08 05:49:56,435]   INFO -    jetbrains.buildServer.AGENT - Agent Web server started on port 9090
[2021-02-08 05:49:56,439]   INFO - agent.impl.AgentPortFileWriter - Writing agent runtime file to /Users/anka/buildAgent/logs/buildAgent.xmlRpcPort
[2021-02-08 05:49:56,440]   INFO - agent.impl.AgentPortFileWriter - Launcher version is 85899
[2021-02-08 05:49:56,441]   INFO - agent.impl.AgentPortFileWriter - Writing agent runtime file to /Users/anka/buildAgent/logs/buildAgent.xmlRpcPort :DONE!
[2021-02-08 05:49:56,441]   INFO -    jetbrains.buildServer.AGENT - Build agent started
[2021-02-08 05:49:56,443]   INFO - buildServer.AGENT.registration - Registering on server via URL "http://localhost:8111": AgentDetails{Name='mgmtManaged-11.2-openjdk-1.8.0_242-teamcity-Veertu.local-1612792156424772000', AgentId=null, BuildId=null, AgentOwnAddress='null', AlternativeAddresses=[192.168.64.39], Port=9090, Version='85899', PluginsVersion='NA', AvailableRunners=[], AvailableVcs=[], AuthorizationToken='', PingCode='OCuiyh8e8jRM0Ir9gvipnxXmM2UlhWDW'}
[2021-02-08 05:49:56,449]   WARN - buildServer.AGENT.registration - Error while asking server for the communication protocols via URL http://localhost:8111/app/agents/protocols. Will try later: java.net.ConnectException: Connection refused (Connection refused) (enable debug to see stacktrace)
[2021-02-08 05:49:56,449]   WARN - buildServer.AGENT.registration - Error registering on the server via URL http://localhost:8111. Will continue repeating connection attempts.
[2021-02-08 05:49:56,942]   INFO - r.artifacts.impl.HttpDiskCache - Cleaning up items with life time in cache greater than 172800 seconds
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Last modified April 28, 2021 : removed faqs from guides section (36b5a06) by Nathan Pierce