# Known Zowe Explorer issues

The following topics contain information that can help you troubleshoot problems when you encounter unexpected behavior, using Zowe Explorer.

# Data Set Creation Error

Symptom:

Data set creation fails.

Sample message:

Error running command zowe.createDataset: z/OSMF REST API Error: http(s) request error event called Error: self signed certificate in certificate chain. This is likely caused by the extension that contributes zowe.createDataset.

Solution:

Set the value of the Reject-Unauthorized parameter to false. Use the profile edit function to change profile's parameters.

# Opening Binary Files Error

Symptom:

When opening a binary file, an error message pops up.

Sample message:

Cannot open file:///Users/userID/.vscode/extensions/zowe-vs.code-extension-for-zowe-1.8.0/resources/temp/binaryfilename. Detail: File seems to be binary and cannot be opened as text

Error running command zowe.editMember: cannot open file:///Users/userID/.vscode/extensions/zowe-vs.code-extension-for-zowe-1.8.0/resources/temp/binaryfilename. Detail: File seems to be binary and cannot be opened as text. This is likely caused by the extension that contributes zowe.editMember.

Solution: