TecDoc Repack is a popular software solution used for managing and distributing technical documentation. However, users often encounter issues during the data loading process, which can be frustrating and time-consuming to resolve. One common error message that appears when loading data fails is: "Loading data failed. Check the configuration file." In this essay, we will explore the possible causes of this error and provide step-by-step troubleshooting guide to resolve TecDoc Repack configuration issues.