Tasks timeline API-1019 error

Products

• Clarity PPM On Premise
• Clarity PPM SaaS

Issue/Introduction

Tasks timeline view throws the following error: API-1019: Could not process the request due to internal error

The grid and board views are correct

You can see the following error on the app-ca.log file:

ERROR 2024-05-27 18:58:37,170 [http-nio-8080-exec-182] ppm.rest (clarity:[email protected]:22352730__A1BEAD75-7F4F-427B-8DF2-788B74DBBBAF:PPM_REST_API) (261a04f3-2e82-48ea-8ace-5cde5fef5ed6) com.ca.ppm.rest.exception.APISystemException at com.ca.clarity.projmgr.rest.provider.TaskResourceProvider.addExternalTasksFromDependencies(TaskResourceProvider.java:396) at com.ca.clarity.projmgr.rest.provider.TaskResourceProvider.addSecondaryEntities(TaskResourceProvider.java:357) at com.ca.platform.osf.object.rest.provider.ODFResourceProvider.getEntities(ODFResourceProvider.java:245) at com.ca.ppm.rest.resource.BaseResourceHandler.retrieveResources(BaseResourceHandler.java:275) at com.ca.ppm.rest.resource.BaseResourceHandler.retrieveResources(BaseResourceHandler.java:234) at com.ca.ppm.rest.resource.ResourceHandler.getSubResources(ResourceHandler.java:137) at jdk.internal.reflect.GeneratedMethodAccessor173.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52) at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:134) at org.glassfish.jersey.server.model.internal

Cause

There is a corrupt dependency where the Dependent Task is blank

Resolution

Remove the corrupted dependency.

1. MUX Administration > Blueprints > Select the blueprint of the affected project
2. Tasks Module > Edit module details > Add the Dependencies module
3. Go to the affected project tasks module > grid view
4. Select the first task, open the Details flyout, and go to the Dependencies module
5. Navigate one by one through the list of tasks looking at the dependencies present
6. You will notice a dependency entry where Lag Type, Lag, and Dependent Task are blank
7. Delete the dependency that falls on the criteria above
8. Once the corrupted dependencies are removed the task timeline will load