AnalyzeFlows - Installation not possible

[SoftCreatR]

When trying to install AnalyzeFlows (1.0.2) on my sandbox (Winter '23) via https://test.salesforce.com/packaging/installPackage.apexp?p0=04t5G000004J7J5QAK, the installation fails:

Your request to install package "AnalyzeFlows ver 0.1" was unsuccessful. None of the data or setup information in your salesforce.com organization was affected.

If your install continues to fail, contact Salesforce CRM Support through your normal channels and provide the following information.

Organization: xxx User: xxx Package: AnalyzeFlows (04t5G000004J7J5) Error Number: 1943818169-107204 (-1524668929) Problem:

1. Method does not exist or incorrect signature: void isRunningTest() from the type Test GetFlowMetadata: Method does not exist or incorrect signature: void isRunningTest() from the type Test

2. Dependent class is invalid and needs recompilation: Class GetFlowMetadata : Method does not exist or incorrect signature: void isRunningTest() from the type Test GetFlowMetadataTest: Dependent class is invalid and needs recompilation: Class GetFlowMetadata : Method does not exist or incorrect signature: void isRunningTest() from the type Test

3. (Analyze_Flows) Get_Flow_1 (Action) - We can't find an action with the name and action type that you specified. Analyze_Flows: Get_Flow_1 (Action) - We can't find an action with the name and action type that you specified.