dual-map overlay

A widely used tool for visual exploration of scientific literature.

Brought to you by: citespace

dual-map overlay

Forum: General Discussion

Creator: Danqi Liu

Created: 2025-02-16

Updated: 2025-07-04

Danqi Liu - 2025-02-16

陈教授好，我在使用citespace6.3R1的dual-map overlay功能时，出现了以下提示：
JournalsBaseMap(567): line: 645 text: Basemap source file not found. Place it in /resources/jcr2011 and try again.
JournalsBaseMap(567): line: 645 text: Basemap source file not found. Place it in /resources/jcr2011 and try again.
JournalsBaseMap(395): Metrics:
numOfJCRjournals_Citing: 0.0
numOfJCRjournals_Cited: 0.0
numOfBlondelClusters_Citing: 0.0
numOfBlondelClusters_Cited: 0.0
numOfOverlayLayers: 0.0
abort!

CiteSpace(5434): Cannot invoke "java.util.HashMap.keySet()" because "<parameter1>" is null
CiteSpace(5434): Cannot invoke "java.util.HashMap.keySet()" because "<parameter1>" is null
请问应如何解决？谢谢老师！</parameter1></parameter1>

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João Costa - 2025-07-03

I'm with same issue :
JournalsBaseMap(567): line: 645 text: Basemap source file not found. Place it in /resources/jcr2011 and try again.
JournalsBaseMap(567): line: 645 text: Basemap source file not found. Place it in /resources/jcr2011 and try again.
JournalsBaseMap(395): Metrics:
numOfJCRjournals_Citing: 0.0
numOfJCRjournals_Cited: 0.0
numOfBlondelClusters_Citing: 0.0
numOfBlondelClusters_Cited: 0.0
numOfOverlayLayers: 0.0
abort!

CiteSpace(5434): Cannot invoke "java.util.HashMap.keySet()" because "<parameter1>" is null.</parameter1>

If someone could help would be great. Thanks
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- Chaomei Chen - 2025-07-04
  
  Which version?
  Uninstall it. Remove the folder User/xxx/.citespace, then install it again.
  
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