Synchronization Errors

Issue	Message	Potential Cause	Potential Solution
Access Error	You do not have the necessary permissions.	Typical causes are: Attempt to download a site where read permission has been removed. Attempt to upload or change a file or list item, user does not have at least Contribute permissions.	Contact site administrators to ensure you have sufficient permissions.
Conflict	The item has been modified both locally and on the server.	Changes have been made to the document locally and on the server. Contributor cannot decide which version to keep and generates this issue.	Conflict errors are resolved in the Resolve Synchronization Conflict Dialog. Open the Resolve Synchronization Conflict dialog by double-clicking on the issue in Sync Issues panel of Contributor. The user is able to review the server and local versions and select which item to keep. Microsoft Word documents can be merged using the compare and merge wizard. The wizard is started by clicking the Merge button at the bottom the Resolve Synchronization Conflict dialog.
Duplicate File/Folder	A file or folder with the same name already exists.	Typically caused by one SharePoint user uploading a document, then another SharePoint user uploading the same document before the first document is synchronized to their Contributor cache.	Rename or delete the conflicting file. Conflict Resolution
File Blocked	Files with this extension are blocked from being uploaded to this SharePoint site. You can delete or rename the file, or contact your site administrator to enable files with this extension.	By default, several standard file extensions are blocked, including any file extensions that are treated as executable files by Windows Explorer. Files with curly brackets { } are also blocked automatically. The file extensions blocked by default are: ade, adp, app, bas, bat, chm, class, cmd, com, cpl, crt, dll, exe, fxp, hlp, hta, ins, isp, jse, lnk, mda, mdb, mde, mdt, mdw, mdz, msc, msi, msp, mst, ops, pcd, pif, prf, prg, reg, scf, scr, sct, shb, shs, url, vb, vbe, vbs, wsc, wsf, wsh	Delete the file from Contributor or rename it.
File In Use	A file system error occurred. Please close any documents that are open and try the synchronization again.	Changes have been made to a document on the server and the document is open in an application on the local machine.	Close the document or any applications that have the document open.
File Locked	The file on the server is checked out or locked for editing.	Another user on the SharePoint server has requested that the file be locked for their exclusive use. This normally is used to prevent two people modifying the same item simultaneously and generating a conflict.	Either: Request the user who has the document checked-out to cancel the check-out. Request the user who has the document checked-out to check-in the document. A conflict sync issue then displays, which needs to be resolved. Save the document as a new item in the library and then discard the local changes to the existing item.
File Removed From Server	A file that had been modified locally was not found on the server. A copy of your local version has been placed on your desktop.	This issue only occurs once. The local version is backed up to the desktop. On the next synchronization the file has been removed from the Contributor cache so the issue no longer exists.	None needed. The item can be added to the server by drag-and-drop from the desktop.
Network/Server Error	An unknown error occurred while trying to perform the operation. Please check your network connection and try again.	Communication with the SharePoint web services are blocked by a web proxy. *Sync Errors are issues not in any other category and normally require investigation of the log file.	Review the log file. for details. Ensure the web proxy allows communication with the SharePoint web services. Contributor can be configured to bypass the proxy. Details of this configuration can be found in the Administration section of the Features list on the Support site.
Network/Server Error	An unknown error occurred while trying to perform the operation. Please check your network connection and try again.	Authentication Failure. The SharePoint site may be configured to use an alternate authentication mechanism. Examples: Forms-based; Client certificate; RSA SecurID. *Sync Errors are issues not in any other category and normally require investigation of the log file.	Currently, Contributor supports SharePoint sites configured with one of the following authentication mechanisms: Basic Authentication Digest Authentication NTLM (Integrated Windows) Authentication Kerberos Authentication
Network/Server Error	An unknown error occurred while trying to perform the operation. Please check your network connection and try again.	Timeout. Uploading a large file or running over a very slow connection may cause the SharePoint web services that Contributor relies on to timeout. *Sync Errors are issues not in any other category and normally require investigation of the log file.	Try again on a faster connection or limit the size of the files being synchronized.
Server Not Reachable	Server Not Reachable	Contributor is not able to connect the SharePoint Server. Typically this is a low-level error indicating a generic network issue, for example, a network cable being unplugged. May also be caused by a proxy blocking the network connection although proxy-blocking often results in an issue of type Sync Issue.	Ensure the network connection is valid. Browse to the SharePoint site in Internet Explorer.
Site ID Mismatch	Site ID Mismatch	A site was found at the URL specified in the Contributor cache, however the site ID is different from the ID of the cached site. The site may have been restored or reconfigured on the SharePoint server.	Delete the site from Contributor and download the site again.
Site Not Found	Site Not Found	Contributor was able to connect to a web server. However, a SharePoint site with the specified URL was not found on this server.	Ensure the site exists and that the user has at least read permissions.

Access Error

You do not have the necessary permissions.

Typical causes are: Attempt to download a site where read permission has been removed. Attempt to upload or change a file or list item, user does not have at least Contribute permissions.

Contact site administrators to ensure you have sufficient permissions.

Conflict

The item has been modified both locally and on the server.

Changes have been made to the document locally and on the server. Contributor cannot decide which version to keep and generates this issue.

Conflict errors are resolved in the Resolve Synchronization Conflict Dialog. Open the Resolve Synchronization Conflict dialog by double-clicking on the issue in Sync Issues panel of Contributor. The user is able to review the server and local versions and select which item to keep. Microsoft Word documents can be merged using the compare and merge wizard. The wizard is started by clicking the Merge button at the bottom the Resolve Synchronization Conflict dialog.

Duplicate File/Folder

A file or folder with the same name already exists.

Typically caused by one SharePoint user uploading a document, then another SharePoint user uploading the same document before the first document is synchronized to their Contributor cache.

Rename or delete the conflicting file. Conflict Resolution

File Blocked

Files with this extension are blocked from being uploaded to this SharePoint site. You can delete or rename the file, or contact your site administrator to enable files with this extension.

By default, several standard file extensions are blocked, including any file extensions that are treated as executable files by Windows Explorer. Files with curly brackets { } are also blocked automatically. The file extensions blocked by default are: ade, adp, app, bas, bat, chm, class, cmd, com, cpl, crt, dll, exe, fxp, hlp, hta, ins, isp, jse, lnk, mda, mdb, mde, mdt, mdw, mdz, msc, msi, msp, mst, ops, pcd, pif, prf, prg, reg, scf, scr, sct, shb, shs, url, vb, vbe, vbs, wsc, wsf, wsh

Delete the file from Contributor or rename it.

File In Use

A file system error occurred. Please close any documents that are open and try the synchronization again.

Changes have been made to a document on the server and the document is open in an application on the local machine.

Close the document or any applications that have the document open.

File Locked

The file on the server is checked out or locked for editing.

Another user on the SharePoint server has requested that the file be locked for their exclusive use. This normally is used to prevent two people modifying the same item simultaneously and generating a conflict.

Either: Request the user who has the document checked-out to cancel the check-out. Request the user who has the document checked-out to check-in the document. A conflict sync issue then displays, which needs to be resolved. Save the document as a new item in the library and then discard the local changes to the existing item.

File Removed From Server

A file that had been modified locally was not found on the server. A copy of your local version has been placed on your desktop.

This issue only occurs once. The local version is backed up to the desktop. On the next synchronization the file has been removed from the Contributor cache so the issue no longer exists.

None needed. The item can be added to the server by drag-and-drop from the desktop.

Network/Server Error

An unknown error occurred while trying to perform the operation. Please check your network connection and try again.

Communication with the SharePoint web services are blocked by a web proxy.

*Sync Errors are issues not in any other category and normally require investigation of the log file.

Review the log file. for details. Ensure the web proxy allows communication with the SharePoint web services. Contributor can be configured to bypass the proxy. Details of this configuration can be found in the Administration section of the Features list on the Support site.

Network/Server Error

An unknown error occurred while trying to perform the operation. Please check your network connection and try again.

Authentication Failure. The SharePoint site may be configured to use an alternate authentication mechanism. Examples: Forms-based; Client certificate; RSA SecurID.

*Sync Errors are issues not in any other category and normally require investigation of the log file.

Currently, Contributor supports SharePoint sites configured with one of the following authentication mechanisms:

Basic Authentication
Digest Authentication
NTLM (Integrated Windows) Authentication
Kerberos Authentication

Network/Server Error

An unknown error occurred while trying to perform the operation. Please check your network connection and try again.

Timeout. Uploading a large file or running over a very slow connection may cause the SharePoint web services that Contributor relies on to timeout.

*Sync Errors are issues not in any other category and normally require investigation of the log file.

Try again on a faster connection or limit the size of the files being synchronized.

Server Not Reachable

Contributor is not able to connect the SharePoint Server. Typically this is a low-level error indicating a generic network issue, for example, a network cable being unplugged.

May also be caused by a proxy blocking the network connection although proxy-blocking often results in an issue of type Sync Issue.

Ensure the network connection is valid. Browse to the SharePoint site in Internet Explorer.

Site ID Mismatch

A site was found at the URL specified in the Contributor cache, however the site ID is different from the ID of the cached site. The site may have been restored or reconfigured on the SharePoint server.

Delete the site from Contributor and download the site again.

Site Not Found

Contributor was able to connect to a web server. However, a SharePoint site with the specified URL was not found on this server.

Ensure the site exists and that the user has at least read permissions.