Flow Designer error on save

[ericgilmore]

Working with Flow Designer, everything was going fine until I wrote and assigned a function script to the Short Description field of a Create Catalog Task action. After writing the script, I clicked [Done], [Save], and [Activate] and it worked as usual.

Then I decided to NOT use the script, so I went back, deleted what I'd done, clicked [Done], [Save], and [Activate] and immediately received some error asking me to look at the error logs.

Went back, looked at the Create Catalog Task action, no script. Everything looks normal, clicked [Done], [Save], [Activate], everything worked no error, but I now noticed that the [Flow] button is NOT green and the [Acitvate] button is still blue, so it didn't activate although it didn't display an error.

I go to the error logs and I see two recent entries:

Failed to invoke public com.glide.flow.model.ComponentInstance() with no args
com.google.gson.internal.ConstructorConstructor$3.construct(ConstructorConstructor.java:107)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:162)
com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:81)
com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172)
com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:81)
com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172)
com.google.gson.Gson.fromJson(Gson.java:803)
com.google.gson.Gson.fromJson(Gson.java:768)
com.google.gson.Gson.fromJson(Gson.java:717)
com.google.gson.Gson.fromJson(Gson.java:689)
com.glide.flow_design.rest.FlowService.updateFlow(FlowService.java:437)
sun.reflect.GeneratedMethodAccessor2748.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
com.glide.rest.handler.impl.ServiceHandlerImpl.invokeService(ServiceHandlerImpl.java:44)
com.glide.rest.processors.RESTAPIProcessor.process(RESTAPIProcessor.java:286)
com.glide.processors.AProcessor.runProcessor(AProcessor.java:553)
com.glide.processors.AProcessor.processTransaction(AProcessor.java:241)
com.glide.processors.ProcessorRegistry.process0(ProcessorRegistry.java:177)
com.glide.processors.ProcessorRegistry.process(ProcessorRegistry.java:166)
com.glide.ui.GlideServletTransaction.process(GlideServletTransaction.java:31)
com.glide.sys.Transaction.run(Transaction.java:2218)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)

and

Flow Designer: Failed to invoke public com.glide.flow.model.ComponentInstance() with no args
com.google.gson.internal.ConstructorConstructor$3.construct(ConstructorConstructor.java:107)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:162)
com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:81)
com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172)
com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:81)
com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93)
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172)
com.google.gson.Gson.fromJson(Gson.java:803)
com.google.gson.Gson.fromJson(Gson.java:768)
com.google.gson.Gson.fromJson(Gson.java:717)
com.google.gson.Gson.fromJson(Gson.java:689)
com.glide.flow_design.rest.FlowService.updateFlow(FlowService.java:437)
sun.reflect.GeneratedMethodAccessor2748.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
com.glide.rest.handler.impl.ServiceHandlerImpl.invokeService(ServiceHandlerImpl.java:44)
com.glide.rest.processors.RESTAPIProcessor.process(RESTAPIProcessor.java:286)
com.glide.processors.AProcessor.runProcessor(AProcessor.java:553)
com.glide.processors.AProcessor.processTransaction(AProcessor.java:241)
com.glide.processors.ProcessorRegistry.process0(ProcessorRegistry.java:177)
com.glide.processors.ProcessorRegistry.process(ProcessorRegistry.java:166)
com.glide.ui.GlideServletTransaction.process(GlideServletTransaction.java:31)
com.glide.sys.Transaction.run(Transaction.java:2218)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
java.lang.Thread.run(Thread.java:748)
: no thrown error

Has anyone else experienced this madness with Flow Designer? I hope I don't have to recreate everything again.

[tantony]

I had the exact same experience and same error  when I toggled an email body to scripting and toggled back again in 'Send Email' action. I think I need to start all over again.

[Mike McCall]

I was just wrestling with an inline script update that wouldn't stick, and I was resigned to rebuilding the flow. However, I may have found a second approach for getting things back in order:

1. Complain about the situation to your coworkers. (Send them a link to this article.)
2. Take a lunch break.
3. Come back from your break.
4. Show somebody the issue in a live demo by following exactly the same steps.
5. ...see it magically work again. 😂

[Amy V2]

🙂 happens so many times!!

[John Prouty]

Video does NOT address this error.