Unable to remove item from solution

Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=9.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: The object you tried to delete is associated with another object and cannot be deleted.Detail: 
<OrganizationServiceFault xmlns:i="www.w3.org/.../XMLSchema-instance" xmlns="schemas.microsoft.com/.../Contracts">
  <ActivityId>e6fd69bf-37d3-44d3-af1c-f0779661a47a</ActivityId>
  <ErrorCode>-2147220953</ErrorCode>
  <ErrorDetails xmlns:d2p1="schemas.datacontract.org/.../System.Collections.Generic">
    <KeyValuePairOfstringanyType>
      <d2p1:key>ApiExceptionSourceKey</d2p1:key>
      <d2p1:value xmlns:d4p1="www.w3.org/.../XMLSchema" i:type="d4p1:string">Plugin/Microsoft.Crm.ObjectModel.SolutionComponentService</d2p1:value>
    </KeyValuePairOfstringanyType>
    <KeyValuePairOfstringanyType>
      <d2p1:key>ApiOriginalExceptionKey</d2p1:key>
      <d2p1:value xmlns:d4p1="www.w3.org/.../XMLSchema" i:type="d4p1:string">Microsoft.Crm.CrmException: The object you tried to delete is associated with another object and cannot be deleted. ---&gt; Microsoft.Crm.CrmException: The object you tried to delete is associated with another object and cannot be deleted.
   at Microsoft.Crm.BusinessEntities.CascadeEngine.&lt;&gt;c__DisplayClass16_0.&lt;CascadeDeleteBulkOM&gt;b__0()
   at Microsoft.PowerApps.CoreFramework.ActivityLoggerExtensions.Execute(ILogger logger, EventId eventId, ActivityType activityType, Action action)
   at Microsoft.Xrm.Telemetry.XrmTelemetryExtensions.Execute(ILogger logger, XrmTelemetryActivityType activityType, Action action)
   at Microsoft.Crm.BusinessEntities.CascadeEngine.&lt;&gt;c__DisplayClass8_0.&lt;CascadeDeleteDB&gt;b__0()
   at Microsoft.PowerApps.CoreFramework.ActivityLoggerExtensions.Execute(ILogger logger, EventId eventId, ActivityType activityType, Action action)
   at Microsoft.Xrm.Telemetry.XrmTelemetryExtensions.Execute(ILogger logger, XrmTelemetryActivityType activityType, Action action)
   at Microsoft.Crm.BusinessEntities.CascadeEngine.&lt;&gt;c__DisplayClass41_0.&lt;Delete&gt;b__0()
   at Microsoft.PowerApps.CoreFramework.ActivityLoggerExtensions.Execute[TResult](ILogger logger, EventId eventId, ActivityType activityType, Func`1 func)
   at Microsoft.Xrm.Telemetry.XrmTelemetryExtensions.Execute[TResult](ILogger logger, XrmTelemetryActivityType activityType, Func`1 func)
   at Microsoft.Crm.BusinessEntities.BusinessProcessObject.&lt;&gt;c__DisplayClass192_0.&lt;Delete&gt;b__0()
   at Microsoft.PowerApps.CoreFramework.ActivityLoggerExtensions.Execute(ILogger logger, EventId eventId, ActivityType activityType, Action action)
   at Microsoft.Xrm.Telemetry.XrmTelemetryExtensions.Execute(ILogger logger, XrmTelemetryActivityType activityType, Action action)
   at Microsoft.Crm.ObjectModel.SolutionComponentService.RemoveSolutionComponent(Guid componentId, Int32 componentType, String solutionUniqueName, ExecutionContext context, Boolean validateSolution)
   at Microsoft.Crm.ObjectModel.SolutionComponentService.RemoveSolutionComponent(Guid componentId, Int32 componentType, String solutionUniqueName, ExecutionContext context)
   --- End of inner exception stack trace ---
   at Microsoft.Crm.Extensibility.VersionedPluginProxyStepBase.Execute(PipelineExecutionContext context)
   at Microsoft.Crm.Extensibility.PipelineInstrumentationHelper.Execute(Boolean instrumentationEnabled, String stopwatchName, ExecuteWithInstrumentation action, PipelineExecutionContext context)
   at Microsoft.Crm.Extensibility.Pipeline.&lt;&gt;c__DisplayClass2_1.&lt;Execute&gt;b__0()</d2p1:value>
    </KeyValuePairOfstringanyType>
    <KeyValuePairOfstringanyType>
      <d2p1:key>ApiStepKey</d2p1:key>
      <d2p1:value xmlns:d4p1="www.w3.org/.../XMLSchema" i:type="d4p1:string">0a59e1ba-3f13-11dd-9bde-0019b9312238</d2p1:value>
    </KeyValuePairOfstringanyType>
    <KeyValuePairOfstringanyType>
      <d2p1:key>ApiDepthKey</d2p1:key>
      <d2p1:value xmlns:d4p1="www.w3.org/.../XMLSchema" i:type="d4p1:string">1</d2p1:value>
    </KeyValuePairOfstringanyType>
    <KeyValuePairOfstringanyType>
      <d2p1:key>ApiActivityIdKey</d2p1:key>
      <d2p1:value xmlns:d4p1="www.w3.org/.../XMLSchema" i:type="d4p1:string">e6fd69bf-37d3-44d3-af1c-f0779661a47a</d2p1:value>
    </KeyValuePairOfstringanyType>
    <KeyValuePairOfstringanyType>
      <d2p1:key>ApiPluginSolutionNameKey</d2p1:key>
      <d2p1:value xmlns:d4p1="www.w3.org/.../XMLSchema" i:type="d4p1:string">System</d2p1:value>
    </KeyValuePairOfstringanyType>
    <KeyValuePairOfstringanyType>
      <d2p1:key>ApiStepSolutionNameKey</d2p1:key>
      <d2p1:value xmlns:d4p1="www.w3.org/.../XMLSchema" i:type="d4p1:string">System</d2p1:value>
    </KeyValuePairOfstringanyType>
  </ErrorDetails>
  <Message>The object you tried to delete is associated with another object and cannot be deleted.</Message>
  <Timestamp>2018-07-11T14:46:50.4943245Z</Timestamp>
  <ExceptionRetriable>false</ExceptionRetriable>
  <ExceptionSource i:nil="true" />
  <InnerFault i:nil="true" />
  <OriginalException i:nil="true" />
  <TraceText i:nil="true" />
</OrganizationServiceFault>