SVN checked out folder does not show SVN status icon

The steps are as follows: TortoiseSVN's settings--appearance and style (look and feel)--the icon overlay (the status cache) will default to the shell (or the other) as it was originally defaulted.

MyEclipse Use SVN plugin, originally normal, no changes, suddenly one day, myeclipse in view of the file, the file after the version number, the file's SVN icon state and so on are gone.
Check plug-ins are in, update, submit and other operations can be normal use, but not to see the state.
Open: Windows->preferences->general->appearance->labledecorations Tick one of the SVN entries.
You can also open windows->preferences->team->svn to make the relevant settings.
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Describe
Prints the status of the working copy files and directories. If there are no parameters, only locally modified items will be printed (no access to the repository), and the--show-updates option will add the work revision and server expiration information. Use--verbose to print the full revision information for each item.
The first six columns of the output are a word justifies, each of which gives information about each aspect of the work-copy project. The first column indicates whether an item is added, removed, or otherwise modified.
''
Not modified.
A
Book The items you want to add.
D
Schedule the items to be deleted.
M
The project has been modified.
R
The project has been replaced in the working copy. This means that the file is scheduled to be deleted, and then there is a file of the same name to replace it in the same location. Here are some commands for the SVN icon state.
C
The content of the item (relative to the property) conflicts with the data that is being updated.
X
Projects are related to external definitions.
' I '
Items are ignored (for example, using the Svn:ignore property).
'?'
The project is not under version control.
'!'
The item has been lost (for example, you use SVN to move or delete it). This also indicates that a directory is not complete (a check-out or update interrupt).
'~'
A project is versioned as an object (file, directory, or link), but is replaced by another object. The second column tells the SVN icon state of the properties of a file or directory.
''
Not modified.
M
The properties of this project have been modified.
C
There is a conflict between the properties of this project and the updates that were obtained from the repository. The third column appears only when the working copy is locked. (see "Sometimes you just need to clean up" section.) ）
''
Item is not locked.
L
Project is locked. The fourth column appears only for items that are included in the scheduled inclusion history.
''
No history is scheduled to be submitted.
'+'
History is scheduled to accompany the submission. The fifth column appears only when the item jumps to the parent directory relative to it (see section "Using Branches").
''
The project is the child of its parent directory.
S
The project has been converted. The Sixth column displays the lock information.
''
When using--show-updates, the file is not locked. If you do not use--show-updates, this means that the file is locked in the working copy. Here are some commands for the SVN icon state.
K
The file is locked in the working copy.
O
The file is locked by another user of another working copy and is displayed only when--show-updates is used.
T
The file is locked in the working copy, but the lock is "stolen" and is not available. The file is currently locked in the repository and is displayed only when using--show-updates.
B
The file is locked in the working copy, but the lock is "destroyed" and is not available. The file is currently locked in the repository and is displayed only when using--show-updates. The expiration information appears in column seventh (only occurs when using the--show-updates option).
''
This project is up-to-date in working copies.
' * ' In the server This project has a new revision. The remaining fields can become wide and separated by spaces, and if you use the--show-updates or--verbose option, the work revision is the next field. If the--verbose option is passed, the last committed revision and the last submission author are displayed later. The working copy path is always the last field, so it can include spaces. This section describes a workaround for the SVN icon status in MyEclipse that does not display a problem.