'Word Office Add-In not loading. Error message "This Office AddIn is no longer available"
I have been working on a Word Office Addin for a few weeks now and everything worked fine until now. I want the add a third button to my custom tab. In order to do this, I added an extra group in my manifest file. But now when I try to start my AddIn, I get an error message saying the AddIn is no longer available, see the image.
Now, when I remove the previously added group from my manifest file, the AddIn has no issues.
This Addin is developed using VS Code. I validated the manifest using npm run validate. This shows that the manifest file is valid.
I also deleted the cache a few times, but this also does not resolve the error. I also searched for solutions and one of the options I found is in the Word document go to File -> Info -> Inspect document. When I inspect the document it shows that Taskpane Add-Ins are present, and I can remove them. But this also does not resolve the issue. So I'm running out of options.
So I was hoping, maybe someone can give me some directions on how I could resolve this.
This is the content of the manifest.xml.
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<OfficeApp xmlns="http://schemas.microsoft.com/office/appforoffice/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bt="http://schemas.microsoft.com/office/officeappbasictypes/1.0" mlns:ov="http://schemas.microsoft.com/office/taskpaneappversionoverrides" xsi:type="TaskPaneApp">
<Id>13d8b9bc-052e-4cdb-ab76-8a3131cfb4cf</Id>
<Version>1.0.0.0</Version>
<ProviderName>Tauw</ProviderName>
<DefaultLocale>en-US</DefaultLocale>
<DisplayName DefaultValue="TAUW Office AddIn"/>
<Description DefaultValue="Get project information for this report."/>
<IconUrl DefaultValue="https://localhost:3000/assets/tauw-icon-48.png"/>
<HighResolutionIconUrl DefaultValue="https://localhost:3000/assests/tauw-icon-64.png"/>
<SupportUrl DefaultValue="https://localhost:3000/help"/>
<AppDomains>
<AppDomain>https://www.tauw.com</AppDomain>
</AppDomains>
<Hosts>
<Host Name="Document"/>
</Hosts>
<DefaultSettings>
<SourceLocation DefaultValue="https://localhost:3000/taskpane.html"/>
</DefaultSettings>
<Permissions>ReadWriteDocument</Permissions>
<VersionOverrides xmlns="http://schemas.microsoft.com/office/taskpaneappversionoverrides" xsi:type="VersionOverridesV1_0">
<Hosts>
<Host xsi:type="Document">
<DesktopFormFactor>
<GetStarted>
<Title resid="GetStarted.Title"/>
<Description resid="GetStarted.Description"/>
<LearnMoreUrl resid="GetStarted.LearnMoreUrl"/>
</GetStarted>
<FunctionFile resid="Commands.Url"/>
<ExtensionPoint xsi:type="PrimaryCommandSurface">
<CustomTab id="TabTauw">
<Group id="cgProjectLocations">
<Label resid="cgProjectLocations.Label"/>
<Icon>
<bt:Image size="16" resid="Icon.ProjectLocations.16x16"/>
<bt:Image size="32" resid="Icon.ProjectLocations.32x32"/>
<bt:Image size="80" resid="Icon.ProjectLocations.80x80"/>
</Icon>
<Control xsi:type="Button" id="tpProjectLocationsButton">
<Label resid="tpProjectLocationsButton.Label"/>
<Supertip>
<Title resid="tpProjectLocationsButton.Label"/>
<Description resid="tpProjectLocationsButton.Tooltip"/>
</Supertip>
<Icon>
<bt:Image size="16" resid="Icon.ProjectLocations.16x16"/>
<bt:Image size="32" resid="Icon.ProjectLocations.32x32"/>
<bt:Image size="80" resid="Icon.ProjectLocations.80x80"/>
</Icon>
<Action xsi:type="ShowTaskpane">
<TaskpaneId>btnProjectLocations</TaskpaneId>
<SourceLocation resid="tpProjectLocations.Url"/>
</Action>
</Control>
</Group>
<Group id="cgSupport">
<Label resid="cgSupport.Label"/>
<Icon>
<bt:Image size="16" resid="Icon.Support.16x16"/>
<bt:Image size="32" resid="Icon.Support.32x32"/>
<bt:Image size="80" resid="Icon.Support.80x80"/>
</Icon>
<Control xsi:type="Button" id="tpSupportButton">
<Label resid="tpSupportButton.Label"/>
<Supertip>
<Title resid="tpSupportButton.Label"/>
<Description resid="tpSupportButton.Tooltip"/>
</Supertip>
<Icon>
<bt:Image size="16" resid="Icon.Support.16x16"/>
<bt:Image size="32" resid="Icon.Support.32x32"/>
<bt:Image size="80" resid="Icon.Support.80x80"/>
</Icon>
<Action xsi:type="ShowTaskpane">
<TaskpaneId>btnSupport</TaskpaneId>
<SourceLocation resid="tpSupport.Url"/>
</Action>
</Control>
</Group>
<Group id="cgHistoricalmap">
<Label resid="cgHistoricalmap.Label"/>
<Icon>
<bt:Image size="16" resid="Icon.historicalmap.16x16"/>
<bt:Image size="32" resid="Icon.historicalmap.32x32"/>
<bt:Image size="80" resid="Icon.historicalmap.80x80"/>
</Icon>
<Control xsi:type="Button" id="tpHistoricalmapButton">
<Label resid="tpHistoricalmapButton.Label"/>
<Supertip>
<Title resid="tpHistoricalmapButton.Label"/>
<Description resid="tpHistoricalmapButton.Tooltip"/>
</Supertip>
<Icon>
<bt:Image size="16" resid="Icon.historicalmap.16x16"/>
<bt:Image size="32" resid="Icon.historicalmap.32x32"/>
<bt:Image size="80" resid="Icon.historicalmap.80x80"/>
</Icon>
<Action xsi:type="ShowTaskpane">
<TaskpaneId>btnHistoricalmap</TaskpaneId>
<SourceLocation resid="tpHistoricalmap.Url"/>
</Action>
</Control>
</Group>
<Label resid="Tauw.Label"/>
</CustomTab>
</ExtensionPoint>
</DesktopFormFactor>
</Host>
</Hosts>
<Resources>
<bt:Images>
<bt:Image id="Icon.ProjectLocations.16x16" DefaultValue="https://localhost:3000/assets/map-pinpoint-16.png"/>
<bt:Image id="Icon.ProjectLocations.32x32" DefaultValue="https://localhost:3000/assets/map-pinpoint-32.png"/>
<bt:Image id="Icon.ProjectLocations.80x80" DefaultValue="https://localhost:3000/assets/map-pinpoint-80.png"/>
<bt:Image id="Icon.Support.16x16" DefaultValue="https://localhost:3000/assets/help-16.png"/>
<bt:Image id="Icon.Support.32x32" DefaultValue="https://localhost:3000/assets/help-32.png"/>
<bt:Image id="Icon.Support.80x80" DefaultValue="https://localhost:3000/assets/help-80.png"/>
<bt:Image id="Icon.historicalmap.16x16" DefaultValue="https://localhost:3000/assets/history-16.png"/>
<bt:Image id="Icon.historicalmap.32x32" DefaultValue="https://localhost:3000/assets/history-32.png"/>
<bt:Image id="Icon.historicalmap.80x80" DefaultValue="https://localhost:3000/assets/history-80.png"/>
</bt:Images>
<bt:Urls>
<bt:Url id="GetStarted.LearnMoreUrl" DefaultValue="https://go.microsoft.com/fwlink/?LinkId=276812"/>
<bt:Url id="Commands.Url" DefaultValue="https://localhost:3000/commands.html"/>
<bt:Url id="tpProjectLocations.Url" DefaultValue="https://localhost:3000/taskpane.html"/>
<bt:Url id="tpSupport.Url" DefaultValue="https://localhost:3000/help.html"/>
<bt:Url id="tpHistoricalmap.Url" DefaultValue="https://localhost:3000/historicalmap.html"/>
</bt:Urls>
<bt:ShortStrings>
<bt:String id="GetStarted.Title" DefaultValue="Get started with the add-in!"/>
<bt:String id="cgProjectLocations.Label" DefaultValue="Project Locations"/>
<bt:String id="tpProjectLocationsButton.Label" DefaultValue="Projectinfo"/>
<bt:String id="cgSupport.Label" DefaultValue="Support"/>
<bt:String id="tpSupportButton.Label" DefaultValue="Help"/>
<bt:String id="tpHistoricalmap.Label" DefaultValue="Historicalmap"/>
<bt:String id="tpHistoricalmapButton.Label" DefaultValue="Historicalmap"/>
<bt:String id="Tauw.Label" DefaultValue="TAUW"/>
</bt:ShortStrings>
<bt:LongStrings>
<bt:String id="GetStarted.Description" DefaultValue="De add-in loaded succesfully. Go to the TAUW menu option to get started."/>
<bt:String id="tpProjectLocationsButton.Tooltip" DefaultValue="Click to Show a Taskpane"/>
<bt:String id="tpSupportButton.Tooltip" DefaultValue="Click to Show a Supportpane"/>
<bt:String id="tpHistoricalmapButton.Tooltip" DefaultValue="Click to Show the Historicalmap-pane"/>
<bt:String id="Tauw.Label" DefaultValue="TAUW"/>
</bt:LongStrings>
</Resources>
</VersionOverrides>
</OfficeApp>
UPDATE:
AS usual, when I post a question, a few hours later, I finally got my AddIn working with the extra group.
What I did, I created another test-AddIn and played around a little, by adding multiple groups. At first this wasn't working either. But it seems that:
First: The ID's of the elements used in the group HAVE TO BE UNIQUE. so in this case the <Group ID="Unique-value"> and within the group the control ID also has to have a Unique ID <Control xsi:type="Button" id="Unique-value">. (see also Microsoft)
Second: All the resid's you use in the Group have to be present in the resource section of the manifest file. In my case this caused the problem. I didn't have all the resid's in my manifest file.
The strange thing is that this is not checked when not checked when the manifest is validated.
This question can be closed.
Sources
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Source: Stack Overflow
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