Project Server 2019 Schedule.aspx Load Error only in edit mode

Question

Hi All,

I have a problem with Project Server 2019 - Project Web App sites in both test and production farms. The problem is when I try to open any project in edit mode and navigate to schedule.aspx page, I get a message saying "Sorry, we were unable to open your project..." gives you an option to click OK and takes you back to the project center.

BTW Everything was working fine in both test/production env till last week or so. I believe the customer IT department made some changes but I don't know what It might be. What I tried so far to find a root cause is listed below. As I said both environments have the same issue, so the problem could be related to some security policy blocking something that affects both farms.

edit: editing and publishing schedule works fine through MS Project Professional

• reached the web services through VPN, receive the said error,
• used RDP to connect to a local virtual machine in the customer network, receive the same problem
• tried Chrome, Edge, Internet Explorer, received the same problem
• tried to access PWA sites from directly host servers, received the same problem
• checked for script load fails using developer console network tab, but didn't find any failed loads

I did check the ULS records and here is what I found:

PcsPool.AssignWorker: Failed to assign worker to project ed0ecd66-391f-eb11-b073-0050568a442e, removing from database. Exception : Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsManagerException: Failed to create a new process! Error Code = 193    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.WorkerProcess.Start()    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsWorker.CreateProcess(String appServerHostExe, String workingDir, String arguments)    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsWorker.Start(EngineVersionOption version)    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsAppPool.CreateWorker()    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsAppPool.AssignWorker(IPlatformContext siteContext, Guid projectUid, Guid userUid, IPSError psError, PcsWorkerInfo& pcsWorker, Boolean& projectOpenedInAnotherServer)




CalcServiceManager : Processing Error while opening project guid: ed0ecd66-391f-eb11-b073-0050568a442e, Exception: Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsManagerException: Failed to create a new process! Error Code = 193    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.WorkerProcess.Start()    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsWorker.CreateProcess(String appServerHostExe, String workingDir, String arguments)    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsWorker.Start(EngineVersionOption version)    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsAppPool.CreateWorker()    
 at Microsoft.Office.Project.Server.BusinessLayer.PcsEngine.PcsAppPool.AssignWorker(IPlatformContext siteContext, Guid projectUid, Guid userUid, IPSError psError, PcsWorkerInfo& pcsWorker, Boolean& projectOpenedInAnotherServer)    
 at Microsoft.Office.Project.Server.BusinessLayer.CalcServiceManager.OpenProjectInternal(CalcServiceCallState callState, Guid realProjectGuid, Guid remappedProjectGuid, GetProjectDataInfo getProjectInfo, EngineSessionState& sessionState, EngineSessionType sessionType, PSError& psError, Boolean clearUndoStackOnOpen, Boolean noAsync, ProjectOptions projectOptions)


PWA:, ServiceApp:Project Server Service Application, PSI: Failed to open project: ed0ecd66-391f-eb11-b073-0050568a442e, in site: 9448f596-92aa-4249-a161-630bb4858314

Error is: ProjectDetailPagesFailedToLoadProjectInWorker. Details: Failed to open project: ed0ecd66-391f-eb11-b073-0050568a442e, in site: 9448f596-92aa-4249-a161-630bb4858314 . Standard Information: 

Any help would be appreciated, thanks in advance.

Answer 1

Hi @Harun Kara ,

Your issue is more related to Project on Tech Community platform, it is not supported in Q&A.We suggest you post it on that platform.

Thank you for your support and understanding.

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