Xcode macOS Archive fails with “Command SwiftCompile failed with a nonzero exit code”, but app runs fine

Summary The issue at hand is an Xcode archiving error for a macOS app, where the Command SwiftCompile fails with a nonzero exit code. This error occurs specifically when trying to archive the app, while it runs fine in debug mode. Despite attempts to clean the build folder, delete Derived Data, restart Xcode, and rebuild … Read more

Gitlab linking to external issue tracker does not work, but test connection is successfull

Summary A user configured GitLab’s Custom Issue Tracker integration, received a Connection Successful test response, but found that #ID references in commits and comments did not link to the external tracker. The issue was caused by a misconfigured Issue URL pattern that did not properly interpolate the Issue ID parameter, resulting in GitLab generating invalid … Read more

Spring Boot Batch 6.x: Job Parameters are null in Reader despite using @StepScope

Summary The core issue is a mismatch between the bean definition and Spring Batch’s scoped proxy requirements. The job parameter injection fails in the Wso2InstanceItemReader because the JobParams bean is not correctly configured as a step-scoped bean that receives the JobParameters context. While the getInstanceId method in the configuration is annotated with @StepScope, it does … Read more

struggling to recreate urban heat islands in netlogo

Summary This postmortem analyzes a failed attempt to model urban heat islands in NetLogo. The user aimed to simulate thermal buffering—where urban structures absorb more heat during the day and release it slowly at night—but the implementation resulted in unstable oscillations and unrealistic temperature spikes. The root cause was thermodynamic incoherence: the model ignored mass, … Read more

How do I get java checkstyle to work for emacs?

Summary An Emacs user attempted to integrate Java Checkstyle but encountered a configuration error: (error Missing :command in syntax checker java-checkstyle). The root cause was incorrect argument placement within the flycheck-define-checker macro. Flycheck requires the filename argument (source) to be part of the :command list, not appended to it. The fix involves using the :command … Read more

Hyperledger Fabric deployCC fails with “broken pipe” error on Docker Desktop 4.56.0

Summary During a standard chaincode deployment on Hyperledger Fabric using the deployCC script, the build process terminated abruptly with a broken pipe error when communicating with the Docker daemon (docker.sock). This indicates a failure in the handshake between the Fabric peer (invoking the build) and the Docker engine. Root Cause The direct cause is a … Read more

Why snackbar not showing anywhere

Summary The snackbar is not appearing because the underlying navigation context is in an invalid state during the execution of the asynchronous userLogin method. When Get.snackbar is called, the GetIt/Get instance attempts to find a valid BuildContext (via Get.key.currentContext) to render the overlay. If the userLogin function completes or is triggered after a route has … Read more

How to tell Bson to parse an integer values into BaseInt64

Summary Key Issue: The default BSON decoder in the MongoDB Java driver always interprets numeric JSON literals as BsonInt32, even when the values exceed the 32-bit integer range. This causes silent data truncation or precision loss when parsing JSON strings directly into BsonDocument objects without explicit type specification. Root Cause The root cause lies in … Read more

cloudfront-viewer-country-name stopped working in AWS

Summary Between November 18th and 21st, Lambda functions behind CloudFront stopped receiving CloudFront-Viewer-Country-Name headers while CloudFront-Viewer-Country continued to function. The root cause was a change in how CloudFront handles country header formatting. AWS silently changed the format of geolocation headers from hyphenated (CloudFront-Viewer-Country-Name) to lowercase with spaces replaced by underscores (CloudFront-Viewer-Country-Name became CloudFront-Viewer-Country-Name). The Viewer … Read more