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Data Loader Known Issues


This page documents known issues that have been identified with recent versions of Data Loader. For known issues that have been identified with Jitterbit Harmony applications, see Known Issues. For support, go to Jitterbit Community for Cloud Data Loader.

Multiple Versions of Data Loader

  • Data Loader is not compatible with macOS Catalina (10.15)
    Jitterbit has not certified Data Loader for this or higher versions of the macOS. Jitterbit will announce certification when completed.

10.70 Data Loader

  • Large number of Data Loader logs being generated

    • Summary: Running operations using the Windows version of Data Loader 10.70 results in a large number of logs being quickly generated in C:\Program Files (x86)\Jitterbit Cloud Data Loader\tomcat\logs\jitterbit cloud data loader tomcat server-stdout.<date>.log, causing its file size to grow very big.

    • Additional Information: The issue is caused by the absence of a file (logback.xml) that is normally present in the Data Loader installation. Note that the issue does not affect the macOS version.

    • Workaround: The recommended workaround to copy the logback.xml file from a prior Data Loader installation. Prior to upgrading, copy the the logback.xml file from the existing location at C:\Program Files (x86)\Jitterbit Cloud Data Loader\tomcat\webapps\axis\WEB-INF\lib\logback.xml. After upgrading to 10.70, place the file that you copied into C:\Program Files (x86)\Jitterbit Cloud Data Loader\tomcat\shared\lib\logback.xml.

      An alternative workaround for those who have already installed Data Loader 10.70 is to copy the contents of the generic logback.xml file below into C:\Program Files (x86)\Jitterbit Cloud Data Loader\tomcat\shared\lib\logback.xml:

      <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
          <filter class="ch.qos.logback.classic.filter.LevelFilter">
      <logger name="org.springframework" level="WARN"/>
      <logger name="org.hibernate.engine.jdbc.internal.JdbcResourceRegistryImpl" level="ERROR"/>
      <root level="info">
          <appender-ref ref="STDOUT"/>
          <appender-ref ref="FILE"/>


      For access to the full logback.xml file, contact Jitterbit Support. Data Loader (June 27, 2019)

  • Erroneous warning during installation must be acknowledged

    • Summary: During installation of Data Loader (using the updated installer available as of June 27, 2019) on macOS 10.14 (Mojave), you will receive a warning that "'JitterbitInstallConfigUtils' is not optimized for your Mac and needs to be updated."

    • Workaround: Acknowledge the warning. The installation should proceed successfully.

8.13 - Data Loader (December 20, 2016)

  • Installer is not compatible with macOS 10.14 (Mojave)

    • Summary: Those using macOS 10.14 (Mojave) cannot install Data Loader (using the original installer released December 20, 2016) due to an issue with compatibility of the installer.

    • Workaround: Install Data Loader using the installer available as of June 27, 2019 on the Downloads page of the Harmony Portal.