Failed to generate diagram - Error: Unable to calculate a unique id for an empty set of components #30
Description
npx cdk-dia fails with the following error:
% npx cdk-dia
Failed to generate diagram - Error: Unable to calculate a unique id for an empty set of components
/usr/local/lib/node_modules/cdk-dia/node_modules/@aws-cdk/core/lib/private/uniqueid.js:33
throw new Error('Unable to calculate a unique id for an empty set of components');
^
Error: Unable to calculate a unique id for an empty set of components
at makeUniqueId (/usr/local/lib/node_modules/cdk-dia/node_modules/@aws-cdk/core/lib/private/uniqueid.js:33:15)
at AwsEdgeResolver.findUniqueResourceId (/usr/local/lib/node_modules/cdk-dia/dist/src/diagram/aws/aws-edge-resolver.js:83:44)
at /usr/local/lib/node_modules/cdk-dia/dist/src/diagram/aws/aws-edge-resolver.js:55:47
at DiagramComponent.subTreeFindComponentRec (/usr/local/lib/node_modules/cdk-dia/dist/src/diagram/component/component.js:137:13)
at DiagramComponent.subTreeFindComponent (/usr/local/lib/node_modules/cdk-dia/dist/src/diagram/component/component.js:134:21)
at /usr/local/lib/node_modules/cdk-dia/dist/src/diagram/component/component.js:140:23
at Array.map (<anonymous>)
at DiagramComponent.subTreeFindComponentRec (/usr/local/lib/node_modules/cdk-dia/dist/src/diagram/component/component.js:139:40)
at DiagramComponent.subTreeFindComponent (/usr/local/lib/node_modules/cdk-dia/dist/src/diagram/component/component.js:134:21)
at AwsEdgeResolver.findTargetComponent (/usr/local/lib/node_modules/cdk-dia/dist/src/diagram/aws/aws-edge-resolver.js:54:47)
workaround for now: go to:
/usr/local/lib/node_modules/cdk-dia/node_modules/@aws-cdk/core/lib/private
change this:
function makeUniqueId(components) {
components = components.filter(x => x !== HIDDEN_ID);
if (components.length === 0) {
throw new Error('Unable to calculate a unique id for an empty set of components');
}
to this:
function makeUniqueId(components) {
components = components.filter(x => x !== HIDDEN_ID);
if (components.length < 0) {
throw new Error('Unable to calculate a unique id for an empty set of components');
}