Find missing dependencies when deleting a solution

When deleting a solution in Dynamics CRM, the system checks for dependencies first. If any of the dependencies still exist, then the delete operation will be aborted and the user will receive an error message:

Connot Delete Component (Cannot delete Main because one or more components require it."

The only option for more info, is the Download Log File, but this doesn't tell you really what happened either:

Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=7.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: The Main() component cannot be deleted because it is referenced by 1 other components. For a list of referenced components, use the RetrieveDependenciesForDeleteRequest.Detail:
<OrganizationServiceFault xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.microsoft.com/xrm/2011/Contracts">
<ErrorCode>-2147160033</ErrorCode> <ErrorDetails xmlns:d2p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic">
<KeyValuePairOfstringanyType><d2p1:key>0</d2p1:key><d2p1:value xmlns:d4p1="http://www.w3.org/2001/XMLSchema" i:type="d4p1:string">Main</d2p1:value></KeyValuePairOfstringanyType>
<KeyValuePairOfstringanyType><d2p1:key>1</d2p1:key><d2p1:value xmlns:d4p1="http://www.w3.org/2001/XMLSchema" i:type="d4p1:string"></d2p1:value></KeyValuePairOfstringanyType>
<KeyValuePairOfstringanyType><d2p1:key>2</d2p1:key><d2p1:value xmlns:d4p1="http://www.w3.org/2001/XMLSchema" i:type="d4p1:string">1</d2p1:value></KeyValuePairOfstringanyType>
<KeyValuePairOfstringanyType><d2p1:key>3</d2p1:key><d2p1:value xmlns:d4p1="http://www.w3.org/2001/XMLSchema" i:type="d4p1:string">Solution</d2p1:value></KeyValuePairOfstringanyType>
<KeyValuePairOfstringanyType>
<d2p1:key>4</d2p1:key>
<d2p1:value xmlns:d4p1="http://www.w3.org/2001/XMLSchema" i:type="d4p1:string"><a id='a_helplink' tabindex='0' class='ms-crm-Dialog-Error-Link' onclick='openStdWin("\x2ftools\x2fdependency\x2fdependencyviewdialog.aspx\x3fobjectid\x3d\x257b703af1df-aafb-4c61-b97f-da639fbe8d27\x257d\x26objecttype\x3d7100\x26operationtype\x3ddependenciesforuninstall", null, 800, 600, null)'>Details</a></d2p1:value>
</KeyValuePairOfstringanyType>
</ErrorDetails>
<Message>The Main() component cannot be deleted because it is referenced by 1 other components. For a list of referenced components, use the RetrieveDependenciesForDeleteRequest.</Message>
<Timestamp>2015-02-12T12:24:36.2628436Z</Timestamp>
<InnerFault i:nil="true" />
<TraceText i:nil="true" />
</OrganizationServiceFault>

However, there seems to be a little bit of useful info in there. This is the section "\x2ftools\x2fdependency\x2fdependencyviewdialog.aspx\x3fobjectid\x3d\x257b703af1df-aafb-4c61-b97f-da639fbe8d27\x257d\x26objecttype\x3d7100\x26operationtype\x3ddependenciesforuninstall". When replacing some chracters ("\x2f" to "/", "\x3" to "?", "\x3d" to "=", "\x26" to "&", "\x257b" to "{" and "\x257d" to "}"), then you're presented with the url: /tools/dependency/dependencyviewdialog.aspx?objectid={703af1df-aafb-4c61-b97f-da639fbe8d27}&objecttype=7100&operationtype=dependenciesforuninstall. Add "http://[yourserver] to the beginning and you've got your url that'll tell you exactly what dependencies to remove before you can remove the (managed) solution.

A shorter approach, but just as effective would be to take this url and change yourserver and the solution guid:

http://yourserver/tools/dependency/dependencyviewdialog.aspx?objectid={solutionguid}&objecttype=7100&operationtype=dependenciesforuninstall

Your solution guid can be found by opening the solution and pressing F11 or CTRL+N to see the url. In the url take the section between %7b and %7d: https://[yourserver]/tools/solution/edit.aspx?id=%7bC418E1D5-9AFB-E311-90E1-00155D042F50%7d) and you're set to go!