Expected content hash mismatch during file fetching

com.ibm.team.build.internal.scm.SourceControlUtility$2: Status ERROR: com.ibm.team.filesystem.client code=0 There were errors during download. It is recommended that components be reloaded. The reload will be incremental, loading only the missing items. You can further reduce the reload time by reloading just the projects out of sync. null children=[Status ERROR: com.ibm.team.filesystem.client code=0 Failed to download xxxx.java com.ibm.team.filesystem.client.FileSystemException: Error while writing to xxxx.java : Expected content hash of tyaKqcGXtyk2JPdE5LZIBlPjWNxmtUgNxTjTOzfjFbA but got xI7pGIlnN5GJotiIpky7VmDm0WaMVLSfralt6pAALGA]
One answer

It is possible that the file gets corruption either in the database or during download. You can try to reload it in a different sandbox, on a different machine, or even with a different user account.
If the same error always occurs, it is probably corrupted in the database. In this case, you should contact IBM Support and access the severity the issue.