TeamCity 8.0 Help

Common Problems

Most frequently used documentation sections

Configuring server memory settings Reporting server slowness issues

Troubleshooting TeamCity Installation

See the Changing Server port section.

Build fails or behaves differently in TeamCity but not locally

If a build fails or otherwise misbehaves in TeamCity but you believe it should not, please check that the build runs fine on the same machine as the TeamCity agent and under the same user that the agent is running, with the same environment variables and the same working directory.

If the TeamCity build agent is installed as a Windows service, try running the TeamCity agent from the command line. See also Windows Service limitations. If this fixes the issue, you can try to figure out why running under the service is a problem for the build. Most often this is service-specific and is not related to TeamCity directly. Also, you can setup the TeamCity agent to be run from the console all the time (e.g. configure an automatic user logon and run the agent on the user logon).

Here are the detailed steps you can use to run a build from the command line: Assuming you have a configured build in TeamCity which is failing, do the following:

  • run the build in TeamCity and see it misbehaving

  • disable the agent so that no other builds run on it. This can be done while the build is still in progress

  • log in to the agent machine using the same user as the one running the TeamCity agent (check the right user in the machine processes list)

  • stop the agent

  • in a command line console, "cd" to the checkout directory of the build in question (the directory can be looked up in the beginning of the build log in TeamCity)

  • run the build with a command line as you would do on a developer machine. This is runner-dependent. (For some runners you can look up the command line used by TeamCity in the build log, see also the logs\teamcity-agent.log agent log file for the command line used by TeamCity)

  • if the build fails - investigate the reason as the issue is probably not TeamCity-related and should be investigated on the machine.

  • if it runs OK, continue

  • in the same console window "cd" to <TeamCity agent home>\bin and start TeamCity agent from there with the agent start command

  • ensure the runner settings in TeamCity are appropriate and should generate the same command line as you used manually

  • run the build in TeamCity selecting the agent in the Run custom build dialog

  • when finished, enable the agent

If the build succeeds from the console but still fails in TeamCity, please use a command line runner in TeamCity to launch the same command as in the console. If it still behaves differently in TeamCity, most probably this is an environment or a tool issue. If the command line runner works but the dedicated runner does not while the options are all the same, please create a new issue in our tracker detailing the case. Please attach all the build step settings, the build log, all agent logs covering the build, the command you used in the console to run the build and the full console output of the build.Back to top

Build is slow under TeamCity

If you experience slow builds, the first thing to do is to check the build log to see if there are some long operations or the time is just spread over the entire process. You can compare build logs of slower and faster builds to figure out what the difference is. You can also run the build from the console on the same machine as detailed above to see if there is any difference between the build run from the console and the build in TeamCity.

If the slowness is spread over all the operations, the agent machine resources (CPU, disk, memory, network) are to be analyzed during the build to see if there is a bottleneck in any of those. If there is, the process loading the resource is to be found and investigated (e.g. with the help of the thread dump taken via "View thread dump" link on the running build results).

If there is some long operation and it is a TeamCity-related one (before start or after end of the actual build process), the TeamCity agent and server are to be analyzed (logs and thread dumps).

If you want to turn to us with the issue, please describe the visible effects, detail the process of investigation and attach the build log, full agent logs and other data collected.

Started Build Agent is not available on the server to run builds

First start of agent after installation or TeamCity server upgrade/plugin installation can take time as agent downloads updates form the server and auto-upgrades. Regularly, agent should become connected in 1 to 10 minutes, depending on the agent/server network connection speed.

If the agent is not connected within that time, check the name of the agent (as configured in conf\ file) and check the tabs under the Agents server UI section:

  • the agent is under Connected - the agent is ready to run builds

  • the agent is under Disconnected - the agent was connected to the server, but became disconnected. Check the "Inactivity reason" in the table. If the reason is "Agent has unregistered (will upgrade)", then wait for several more minutes

  • the agent is under Unauthorized - all the agents connected to the server for the first time should be authorized by a server administrator

If the agent stays in the state for more than 10 minutes and you have a fast network connection between the agent and the server, please:

  • check the agent process is running and the serverURL in conf\ is correct;

  • check that all the requirements are met;

  • check agent logs (teamcity-agent.log, launcher.log, upgrade.log) for any related messages/errors;

  • check server logs (teamcity-server.log) for any messages/errors mentioning agent name or IP.

If you cannot find the cause of the delayed agent upgrade in the logs, contact us and provide the full agent and server logs. Please also check/include the state of the agent processes (java ones) on the agent machine. Back to top

Artifacts of a build are not cleaned

If you encounter a case when artifacts are preserved while they should have been removed by the server cleanup process, please check:

  • the cleanup rules of the build configuration in question, artifacts cleanup section

  • presence of the icon "This build is used by other builds" in the build history line (prior to Pin action/icon on Build History)

  • build's Dependencies tab, "Delivered Artifacts" section. For every build configuration, check whether "Prevent dependency artifacts clean-up" is turned ON (this is default value). If it is, then the build's artifacts are not cleaned because of the setting. Read more on cleanup settings.

"out of memory" error with internal (HSQLDB) database hsqldb_oom

If during the TeamCity server start-up you encounter errors like:

  • "error in script file line: ... out of memory"

  • "java.sql.SQLException: out of memory", perform the following:

  • try increasing server memory. If this does not help, most probably this means that you have encountered internal database corruption. You can try to deal with this corruption using the notes based on the HSQLDB documentation.

A way to attempt a manual database restore:

  • stop the TeamCity server

  • backup the <TeamCity Data Directory>/system/ file

  • remove the <TeamCity Data Directory>/system/ file and replace it with zero-size file of the same name.

  • start the TeamCity server

However, if the database does not recover automatically, chances that it can be fixed manually are minimal.

The internal (HSQL) database is not stable enough for production use and we highly recommend using an external database for TeamCity non-evaluation usage. If you encountered database corruption, you can restore the last good backup or drop builds history and users, but preserve the settings, see Migrating to an External Database.

The transaction... log is full

This error can occur with an MS SQL or Sybase database. In this case we recommend increasing the transaction log for the TeamCity database. The log size can be 1 - 16 GB depending on the number of build agents in the system and the number of tests all agents report daily.

The table 'table_name' is full

This error can occur with a MySQL database. The error indicates that the database has run out of free space either on the disk where the database files are located or in the temp directory.

Unable to extend ... segment ... in tablespace ...

This error can occur with an Oracle database. The error indicates that Oracle could not obtain more space for a table or an index as the database has run out of space on the disk or the specified quotas are insufficient.

Character set/collation mismatch

TeamCity reports character set/collation mismatch error: database tables/columns have a character set or collation that is not the same as the default character set or collation in your database schema.

TeamCity displays ???? instead of national symbols

If you want to allow your local characters in texts in TeamCity (e.g. VCS messages, test names, user names, etc.), you need to migrate to a database with the appropriate character set.

To fix a problem, perform the following steps:

  1. Create a new database with the appropriate character set and collation. For the database-specific information, see PostgreSQL, MySQL MS SQL. If you are using MySQL or MS SQL, we recommend using the case-sensitive collation to avoid issues with agents on Unix-like OS.

  2. Copy the current < >/config/ file, and change the database references in the copy to the newly created database.

  3. Stop the TeamCity server.

  4. Use the maintainDB tool to migrate to the new database:

    maintainDB migrate [-A <path-to-data-dir>] -T <new-database-properties-file>

    Depending on the size of your database, the migration may take from several minutes to several hours. For more information on the maintainDB tool, see this section.

  5. Upon the successful completion of the database migration, the maintainDB tool should update the < >/config/ file with references to the new database. Ensure that the file has been updated. Edit the file manually if the tool fails to do it automatically.

  6. Start the TeamCity server.

'This driver is not configured for integrated authentication' error with MS SQL database

During TeamCity installation, the following error might occur when connecting and creating the MS SQL database with integrated security: "SQL error when doing: Taking a connection from the data source: This driver is not configured for integrated authentication."

The most common reason for the problem is the different bitness of the sqljdbc_auth.dll MS SQL shared library and the JRE used by TeamCity.

To solve the problem, do the following:

  1. Make sure you use the MS SQL native driver (see details).

  2. Use the right JRE bitness — ensure that you are running TeamCity using Java with the same bitness as your sqljdbc_auth.dll MS SQL shared library.

By default, TeamCity uses the 32-bit Java. However, both 32-bit and 64-bit Java versions can be used.

To run TeamCity with the required JRE, do one of the following:

  • either set the TEAMCITY_JRE environment variable

  • or remove the JRE bundled with TeamCity from <TeamCity home>/jre and set JAVA_HOME.

    See also this related external posting.

Protocol violation error (Oracle only)

This error can occur when the Oracle JDBC driver is not compatible with the Oracle server. For example, Oracle JDBC driver version 11.1 is not compatible with Oracle server version 10.2.

In order to resolve the problem, use the Oracle JDBC driver from your Oracle server installation, or download the driver of the same version as the Oracle server.

Common Maven issues

There are two kinds of Maven-related issues commonly seen in the TeamCity build configurations:

  • Error message on "Maven" tab of build configuration: "An error occurred during collecting Maven project information ... "

  • Error message in build configuration with Maven dependencies trigger activated: "Unable to check for Maven dependency Update ..."

If the build configuration produces successful builds despite displaying such error messages, these errors are likely to be caused by the server-side Maven misconfiguration.

To collect information for the Maven tab, or to perform Maven dependencies check (for the trigger), TeamCity runs the embedded Maven. The execution is performed on the server machine, and any agent-side maven settings are not accessible. TeamCity resolves the settings.xml files on the server-side separately, as described on this documentation page.

It makes sense to check if the server-side settings.xml files contain correct information about remote repositories, proxies, mirrors, profiles, credentials etc.

"Critical error in configuration file" errors

If you encounter the error, it means the settings stored in the TeamCity Data Directory are in inconsistent state. This can occur after manual change of the files or if newer version of TeamCity starts to report the inconsistencies. To resolve the issue, you can edit the file noted in the message on the server file system. (make sure to create backup copy of the file before any manual edits). Usually server restart is not necessary for the changes to take effect.

VCS root with id "XXX" does not exist The build configuration or template reference a VCS root which is not defined in the system. Remedy actions: Restore the VCS root or create a new VCS root with the id noted or edit the file noted in the message to remove the reference to the VCS root.

Problems with TeamCity NuGet Feed

If you are experiencing issues with partial TeamCity Nuget Feed, i.e. missing nuget packages etc., you might need to reindex the TeamCity Nuget Feed.

To force TeamCity to reindex all available packages and reset the nuget package list, do the following:

  1. Stop the TeamCity server.

  2. Backup the content of < >\system\caches\buildsMetadata and delete the content of this directory.

  3. Start the TeamCity server and wait for the artifacts to be reindexed (the server log will contain the related messages).

Last modified: 20 April 2023